LOCAL CLIMATOLOGICAL DATA Monthly Summary December 1998 Station: Millersville 1SE Latitude: 39° 05' 07" N Longitude: 76° 37' 04" W Elevation (ground): 75 feet Time Zone: EASTERN +--+-----------------------------+----+---------+---------+--+-----------+------------------+-----------------------------+----+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun| | +-----+-----+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level+----+----+---+-------+-------+----+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +-----+-----+------+ Avg| Res|Res| Peak | Minute|Mean| | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | x | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+-----+-----+------+------+---+----+----+----+---------+--+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ |01| 64 | 35 | 49.5 | 56.2 | 37| 51| 16| 0|.........| 0| 0.00| 0.0|30.33|29.92|30.139| 5.1| 3.9|304| 33| NW| 18|310| 29 | |02| 64 | 28 | 46.0 | 45.7 | 30| 59| 19| 0|.........| 0| 0.00| 0.0|30.32|30.02|30.184| 2.3| 1.9|224| 23| SW| 9|220| 29 | |03| 71 | 37 | 54.0 | 52.7 | 38| 60| 11| 0|.........| 0| 0.00| 0.0|30.03|29.92|29.983| 1.7| 1.4|219| 10|SSW| 6|210| 30 | |04| 73 | 54 | 63.5 | 62.7 | 52| 68| 2| 0|.........| 0| 0.00| 0.0|30.13|29.96|30.038| 2.7| 2.4|270| 18|NNW| 10|300| 30 | |05| 71 | 54 | 62.5 | 61.9 | 54| 77| 3| 0|.........| 0| 0.00| 0.0|30.12|29.97|30.046| 1.7| 1.0|135| 10|ESE| 6|120| 29 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 77 | 49 | 63.0 | 60.3 | 52| 76| 2| 0|.........| 0| 0.00| 0.0|30.02|29.92|29.976| 1.7| 1.0|217| 14| W| 7|270| 17 | |07| 78*| 55 | 66.5*| 65.2 | 56| 74| 0| 1|.........| 0| 0.08| 0.0|30.12|29.86|29.960| 3.4| 2.2|243| 20|WNW| 12|340| 29 | |08| 60 | 48 | 54.0 | 51.2 | 48| 92| 11| 0|.........| 0| 0.42| 0.0|30.15|29.98|30.079| 2.0| 1.6| 54| 14| E| 7|310| 29 | |09| 49 | 29 | 39.0 | 42.7 | 34| 75| 26| 0|.........| 0| 0.16| 0.0|30.45|30.04|30.285| 3.0| 2.8|349| 18| N| 9| 10| 30 | |10| 50 | 26 | 38.0 | 38.4 | 30| 76| 27| 0|.........| 0| 0.00| 0.0|30.43|30.23|30.349| 1.0| 0.9|262| 9| NW| 6|300| 32 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 48 | 29 | 38.5 | 40.8 | 27| 60| 27| 0|.........| 0| 0.00| 0.0|30.48|30.21|30.348| 3.3| 3.2|320| 21| NW| 12|320| 32 | |12| 47 | 27 | 37.0 | 37.5 | 30| 76| 28| 0|.........| 0| 0.01| 0.0|30.48|30.27|30.406| 1.4| 1.1|208| 14|ESE| 7|210| 34 | |13| 45 | 38 | 41.5 | 41.5 | 37| 86| 24| 0|.........| 0| 0.47| 0.0|30.28|29.91|30.057| 1.6| 1.1|359| 11| N| 6|340| 27 | |14| 45 | 24 | 34.5 | 36.6 | 24| 63| 31| 0|.........| 0| 0.00| 0.0|30.38|29.99|30.206| 2.6| 2.4|358| 18|NNW| 9|340| 29 | |15| 50 | 20 | 35.0 | 32.8 | 23| 73| 30| 0|.........| 0| 0.00| 0.0|30.39|30.11|30.296| 1.5| 1.0|240| 10|SSW| 6|250| 30 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 54 | 29 | 41.5 | 37.8 | 29| 74| 24| 0|.........| 0| 0.00| 0.0|30.12|29.78|29.948| 1.9| 1.3|330| 20|WNW| 12|320| 31 | |17| 47 | 32 | 39.5 | 40.8 | 29| 63| 26| 0|.........| 0| 0.01| 0.0|29.97|29.70|29.796| 4.6| 4.3|317| 24| NW| 12|320| 30 | |18| 43 | 27 | 35.0 | 34.9 | 21| 58| 30| 0|.........| 0| 0.00| 0.0|30.40|29.95|30.204| 3.6| 3.1|293| 23|NNW| 12|330| 30 | |19| 54 | 32 | 43.0 | 43.6 | 29| 56| 22| 0|.........| 0| 0.00| 0.0|30.33|30.22|30.281| 2.9| 2.6|201| 21| SW| 10|220| 32 | |20| 53 | 40 | 46.5 | 47.1 | 37| 67| 19| 0|.........| 0| 0.00| 0.0|30.40|30.25|30.342| 1.5| 1.1| 80| 8| E| 5| 80| 32 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 58 | 43 | 50.5 | 48.6 | 44| 84| 15| 0|.........| 0| 0.00| 0.0|30.38|29.91|30.229| 2.6| 2.1|160| 19|SSW| 9|210| 31 | |22| 66 | 22 | 44.0 | 45.4 | 31| 58| 21| 0|.........| 0| 0.10| 0.0|30.53|29.72|30.076| 8.8| 6.5|307| 36| NW| 18|330| 31 | |23| 27 | 17 | 22.0 | 22.1 | 10| 63| 43| 0|...4.....| 1| 0.20| 1.5|30.65|30.37|30.527| 2.5| 1.6|357| 12| NW| 7|310| 32 | |24| 30 | 22 | 26.0 | 25.4 | 17| 73| 39| 0|...4.....| 1| 0.15| 0.5|30.45|30.31|30.376| 2.6| 2.4|331| 14| NW| 7|310| 29 | |25| 33 | 13 | 23.0 | 23.5 | 13| 67| 42| 0|.........| 1| 0.00| 0.0|30.52|30.37|30.448| 1.8| 1.5|322| 9| NW| 6|350| 32 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 32 | 11*| 21.5 | 21.9 | 16| 82| 44| 0|.........| 1| 0.00| 0.0|30.38|30.11|30.235| 1.3| 0.9|270| 8| NW| 5|300| 34 | |27| 40 | 13 | 26.5 | 28.1 | 20| 75| 39| 0|.........| T| 0.00| 0.0|30.43|30.23|30.319| 1.7| 1.0|167| 12|SSE| 7|160| 33 | |28| 41 | 29 | 35.0 | 35.5 | 30| 80| 30| 0|.........| 0| 0.20| 0.0|30.24|30.03|30.108| 1.3| 0.7| 8| 8| NW| 6| 0| 31 | |29| 39 | 34 | 36.5 | 36.6 | 33| 88| 29| 0|.........| 0| 0.15| 0.0|30.05|29.50|29.789| 1.1| 0.8|329| 8|WNW| 4|340| 28 | |30| 37 | 18 | 27.5 | 28.3 | 14| 59| 38| 0|.........| 0| 0.03| 0.0|30.18|29.46|29.800| 7.6| 7.3|317| 39|WNW| 20|310| 32 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 26 | 14 | 20.0*| 21.0 | 12| 70| 45| 0|...4.....| T| T | T |30.22|30.08|30.150| 2.0| 1.4|256| 13| NW| 8|310| 35 | +--+-----+-----+------+------+---+----+----+----+---------+--+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | Sum| +-----+-----+------+------+---+----+----+----+ Number of +-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | 1572| 949|------|------|---|----| 763| 1| Days | 1.98| 2.0|30.65|29.46|30.161| 2.7| 1.3|300| 39|WNW| 20|310| 919| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date| Date|------|----|----|---| Date | Date | Avg| +-----+-----+------+------+---+----+----+----+ +-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | 50.7| 30.6| 40.7 | 40.9 | 31|70.5|----|----|>.01 Inch 12|34.47| 2.0| 23 | 30 |------|----|----|---| 30 | 30 | 30| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | | Season |Snow, Ice | | | | Number of Days | to Date |>1.0 Inch 1|Greatest in 24 Hours and Dates| Greatest Depth on Ground | +----------------+-----------------+----+----+------------+-------------+----------------+ of Snow, Ice Pellets or Ice | | Max Temperature| Min temperature |1683|1242|Thunder 0|Precipitation| Snow, Ice Plts | and Date | +-------+--------+--------+--------+----+----+------------+------+------+--------+-------+-------------+--------------------+ | > 90°F| < 32°F | < 32°F | < 0°F |----|----|Heavy Fog 0| 0.54| 8- 9| 1.5 | 22 | 1 | 22+ | +-------+--------+--------+--------+----+----+------------+------+------+--------+----+--+-------------+--------------------+ | 0 | 0 | 20 | 0 |----|----|Clear 8 Partly Cloudy 0 Cloudy 0| +-------+--------+--------+--------+----+----+----------------------------------------+ NOTES: Units are: Temperature=°F, Wind=mph, Pressure=inches Hg, Precipitation=inches. Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: sunshine index is measured via solar cell and its value ranges from 0 (darkest) to 99 (brightest) and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean. OBSERVER NOTES: 23rd/24th: Snow and sleet.OBSERVATIONS AT 3-HOUR INTERVALS December 1998: Millersville 1SE +--+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | % | | R | e | | % +--+---+---+ % | | R | e | | % +--+---+---+ % | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 1 | DEC 2 | DEC 3 | | | | | |01| 0|29.95| 0.00| 61| 51| 67|21| 5| 14| 0|30.30| 0.00| 34| 27| 76|32| 3| 4| 0|30.01| 0.00| 46| 32| 58|26| 2| 4| |04| 0|29.94| 0.00| 59| 50| 70|19| 4| 11| 0|30.27| 0.00| 30| 26| 86|24| 1| 2| 0|30.01| 0.00| 40| 32| 72|00| 2| 2| |07| 13|30.01| 0.00| 57| 48| 70|22| 2| 6| 27|30.28| 0.00| 30| 26| 89|05| 0| 1| 37|30.01| 0.00| 39| 33| 80|16| 1| 2| |10| 73|30.13| 0.00| 63| 35| 35|31| 10| 21| 76|30.27| 0.00| 51| 30| 44|23| 6| 12| 87|30.03| 0.00| 50| 37| 61|24| 2| 2| |13| 75|30.18| 0.00| 64| 31| 29|34| 12| 23| 74|30.16| 0.00| 63| 30| 29|22| 4| 11| 75|29.94| 0.00| 66| 40| 39|24| 5| 7| |16| 67|30.23| 0.00| 61| 28| 29|32| 7| 12| 68|30.09| 0.00| 61| 32| 34|19| 2| 5| 68|29.93| 0.00| 67| 42| 40|20| 2| 3| |19| 0|30.29| 0.00| 54| 25| 33|32| 5| 9| 0|30.09| 0.00| 47| 31| 54|09| 0| 2| 0|29.97| 0.00| 54| 43| 64|14| 0| 1| |22| 0|30.32| 0.00| 38| 28| 66|21| 1| 2| 0|30.06| 0.00| 45| 33| 63|17| 1| 4| 0|29.98| 0.00| 58| 45| 61|22| 2| 4| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 4 | DEC 5 | DEC 6 | | | | | |01| 0|29.98| 0.00| 58| 47| 66|21| 2| 5| 0|30.09| 0.00| 59| 53| 81|32| 2| 3| 0|29.99| 0.00| 53| 48| 85|11| 1| 2| |04| 0|29.98| 0.00| 55| 47| 75|24| 1| 2| 0|30.08| 0.00| 59| 54| 85|30| 0| 1| 0|29.99| 0.00| 53| 49| 86|35| 1| 1| |07| 17|30.02| 0.00| 57| 49| 74|23| 2| 2| 9|30.09| 0.00| 58| 55| 91|22| 0| 1| 0|30.01| 0.00| 51| 47| 89|13| 1| 2| |10| 77|30.07| 0.00| 69| 55| 59|28| 3| 9| 85|30.12| 0.00| 62| 59| 91|11| 1| 2| 34|30.02| 0.00| 64| 56| 74|21| 3| 5| |13| 80|30.03| 0.00| 72| 56| 55|25| 7| 18| 80|30.02| 0.00| 70| 57| 61|12| 3| 7| 43|29.95| 0.00| 75| 56| 50|22| 6| 12| |16| 69|30.03| 0.00| 72| 56| 56|28| 2| 6| 70|29.99| 0.00| 68| 54| 60|11| 2| 7| 67|29.94| 0.00| 75| 55| 49|20| 1| 5| |19| 0|30.07| 0.00| 61| 55| 79|21| 2| 2| 0|29.99| 0.00| 62| 52| 69|11| 2| 3| 0|29.96| 0.00| 59| 53| 82|10| 1| 2| |22| 0|30.09| 0.00| 58| 53| 84|31| 4| 7| 0|29.99| 0.00| 56| 51| 83|13| 1| 2| 0|29.96| 0.00| 54| 50| 89|09| 0| 1| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 7 | DEC 8 | DEC 9 | | | | | |01| 0|29.92| 0.00| 58| 52| 82|19| 1| 3| 0|30.12| 0.00| 57| 52| 85|05| 4| 10| 0|30.06| 0.04| 48| 46| 96|35| 2| 4| |04| 0|29.89| 0.00| 61| 55| 79|20| 3| 11| 0|30.13| 0.04| 51| 48| 90|10| 4| 10| 0|30.10| 0.01| 44| 41| 91|05| 1| 5| |07| 13|29.89| 0.00| 61| 55| 82|20| 4| 8| 12|30.11| 0.00| 50| 47| 93|08| 4| 9| 2|30.22| 0.00| 42| 39| 90|22| 2| 3| |10| 85|29.93| 0.00| 71| 56| 58|24| 6| 13| 90|30.11| 0.00| 52| 48| 86|07| 4| 7| 81|30.34| 0.00| 45| 34| 64|05| 2| 10| |13| 84|29.92| 0.00| 75| 57| 52|25| 4| 9| 87|30.05| 0.08| 50| 47| 92|09| 3| 5| 81|30.30| 0.00| 49| 32| 52|02| 4| 9| |16| 39|29.96| 0.00| 74| 56| 52|33| 6| 9| 41|30.03| 0.01| 50| 48| 95|35| 2| 8| 68|30.34| 0.00| 48| 27| 44|34| 3| 6| |19| 0|30.07| 0.01| 62| 59| 90|18| 1| 6| 0|30.03| 0.03| 50| 48| 96|20| 1| 3| 0|30.41| 0.00| 37| 31| 81|16| 1| 2| |22| 0|30.07| 0.00| 61| 58| 93|05| 2| 4| 0|30.07| 0.05| 51| 49| 96|02| 1| 3| 0|30.42| 0.00| 31| 28| 92|25| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 10 | DEC 11 | DEC 12 | | | | | |01| 0|30.41| 0.00| 29| 27| 95|34| 0| 0| 0|30.25| 0.00| 44| 30| 58|29| 2| 6| 0|30.46| 0.00| 29| 25| 88|00| 1| 2| |04| 0|30.41| 0.00| 28| 26| 97|27| 0| 0| 0|30.26| 0.00| 43| 31| 61|24| 1| 2| 0|30.46| 0.00| 28| 25| 91|21| 1| 2| |07| 22|30.42| 0.00| 28| 27| 98|01| 0| 0| 10|30.30| 0.00| 40| 28| 62|30| 3| 6| 10|30.46| 0.00| 28| 25| 92|25| 1| 2| |10| 91|30.43| 0.00| 37| 35| 97|20| 1| 2| 89|30.37| 0.00| 45| 29| 54|35| 5| 12| 90|30.48| 0.00| 39| 34| 83|18| 2| 3| |13| 83|30.35| 0.00| 49| 31| 50|28| 4| 8| 80|30.33| 0.00| 47| 26| 44|32| 10| 20| 87|30.42| 0.00| 45| 32| 59|23| 4| 6| |16| 76|30.28| 0.00| 49| 30| 48|30| 3| 6| 70|30.35| 0.00| 47| 24| 40|33| 6| 14| 70|30.36| 0.00| 46| 31| 55|21| 2| 6| |19| 0|30.28| 0.00| 43| 33| 67|21| 0| 1| 0|30.42| 0.00| 36| 25| 65|00| 1| 2| 0|30.35| 0.00| 41| 32| 69|15| 1| 2| |22| 0|30.27| 0.00| 41| 35| 79|20| 1| 2| 0|30.46| 0.00| 30| 25| 83|00| 1| 2| 0|30.32| 0.00| 42| 35| 75|19| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 13 | DEC 14 | DEC 15 | | | | | |01| 0|30.24| 0.00| 40| 37| 90|11| 2| 2| 0|30.01| 0.00| 42| 29| 60|00| 2| 4| 0|30.37| 0.00| 24| 21| 91|31| 0| 0| |04| 0|30.17| 0.06| 39| 37| 94|15| 1| 2| 0|30.05| 0.00| 38| 29| 70|35| 2| 3| 0|30.36| 0.00| 22| 20| 94|30| 1| 1| |07| 0|30.09| 0.03| 39| 37| 95|10| 0| 0| 9|30.12| 0.00| 31| 27| 89|32| 2| 3| 8|30.37| 0.00| 21| 19| 95|34| 0| 2| |10| 78|30.09| 0.03| 42| 40| 95|04| 2| 4| 77|30.23| 0.00| 39| 23| 52|03| 5| 11| 76|30.39| 0.00| 37| 26| 65|25| 3| 8| |13| 87|29.96| 0.00| 42| 40| 94|03| 2| 4| 77|30.22| 0.00| 43| 19| 39|35| 6| 16| 79|30.30| 0.00| 48| 27| 44|28| 2| 5| |16| 51|29.93| 0.00| 43| 39| 86|23| 1| 2| 65|30.25| 0.00| 43| 21| 41|03| 2| 6| 68|30.24| 0.00| 48| 25| 41|22| 3| 5| |19| 0|29.97| 0.00| 43| 37| 81|35| 3| 6| 0|30.34| 0.00| 33| 23| 66|31| 1| 2| 0|30.20| 0.00| 33| 24| 69|21| 2| 2| |22| 0|30.00| 0.00| 44| 32| 63|35| 4| 6| 0|30.37| 0.00| 26| 21| 85|04| 1| 1| 0|30.18| 0.00| 30| 25| 82|27| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 16 | DEC 17 | DEC 18 | | | | | |01| 0|30.11| 0.00| 30| 26| 87|28| 0| 2| 0|29.77| 0.00| 36| 31| 85|12| 1| 2| 0|29.97| 0.00| 33| 23| 68|23| 1| 4| |04| 0|30.03| 0.00| 30| 26| 89|01| 1| 2| 0|29.71| 0.00| 38| 33| 82|01| 1| 2| 0|30.02| 0.00| 33| 23| 68|29| 4| 10| |07| 0|30.00| 0.00| 31| 28| 90|32| 0| 2| 0|29.73| 0.00| 45| 35| 68|30| 4| 7| 2|30.14| 0.00| 33| 20| 60|29| 7| 14| |10| 88|30.01| 0.00| 39| 32| 75|33| 2| 3| 82|29.78| 0.00| 45| 30| 56|30| 4| 10| 79|30.25| 0.00| 37| 20| 51|33| 7| 17| |13| 87|29.91| 0.00| 50| 31| 47|31| 4| 6| 90|29.76| 0.00| 45| 27| 50|34| 4| 13| 79|30.26| 0.00| 42| 20| 41|27| 4| 12| |16| 66|29.87| 0.00| 52| 30| 43|33| 4| 8| 76|29.78| 0.00| 45| 27| 49|32| 6| 12| 67|30.28| 0.00| 42| 18| 38|25| 3| 7| |19| 0|29.89| 0.00| 39| 30| 71|20| 1| 2| 0|29.87| 0.00| 39| 24| 55|29| 5| 9| 0|30.32| 0.00| 31| 20| 63|25| 1| 2| |22| 0|29.85| 0.00| 32| 27| 85|28| 0| 1| 0|29.93| 0.00| 36| 24| 62|31| 5| 12| 0|30.33| 0.00| 28| 22| 81|32| 0| 3| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.03 | 0.04 | 0.04 | 0.05 | 0.06 | 0.08 | 0.09 | 0.10 | 0.12 | 0.13 | 0.17 | 0.20 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 13 | 13 | 13 | 13 | 13 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0702 | 0706 | 0706 | 0716 | 0716 | 0739 | 0739 | 0605 | 0555 | 0605 | 0539 | 0605 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.OBSERVATIONS AT 3-HOUR INTERVALS December 1998: Millersville 1SE +--+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+---+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | % | | R | e | | % +--+---+---+ % | | R | e | | % +--+---+---+ % | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 19 | DEC 20 | DEC 21 | | | | | |01| 0|30.31| 0.00| 34| 24| 66|19| 2| 4| 0|30.26| 0.00| 44| 35| 70|01| 2| 2| 0|30.36| 0.00| 46| 39| 77|08| 2| 6| |04| 0|30.29| 0.00| 36| 26| 67|20| 2| 5| 0|30.27| 0.00| 45| 37| 73|27| 1| 2| 0|30.34| 0.00| 44| 39| 83|02| 1| 1| |07| 0|30.29| 0.00| 35| 25| 68|18| 3| 4| 0|30.31| 0.00| 42| 36| 79|32| 1| 2| 0|30.33| 0.00| 45| 40| 84|05| 1| 2| |10| 84|30.33| 0.00| 44| 25| 48|22| 6| 13| 85|30.38| 0.00| 49| 35| 58|07| 3| 6| 86|30.33| 0.00| 47| 42| 85|16| 3| 9| |13| 86|30.25| 0.00| 51| 28| 41|20| 6| 14| 87|30.36| 0.00| 51| 36| 56|05| 2| 6| 88|30.23| 0.00| 52| 46| 82|17| 3| 7| |16| 64|30.26| 0.00| 52| 32| 46|18| 2| 9| 81|30.35| 0.00| 51| 37| 57|13| 2| 4| 66|30.17| 0.00| 50| 45| 85|17| 3| 7| |19| 0|30.26| 0.00| 48| 31| 52|21| 1| 2| 0|30.38| 0.00| 48| 37| 65|30| 1| 2| 0|30.11| 0.00| 49| 45| 88|16| 6| 9| |22| 0|30.26| 0.00| 45| 33| 62|02| 1| 2| 0|30.39| 0.00| 47| 38| 71|19| 1| 4| 0|30.01| 0.00| 53| 49| 86|20| 3| 6| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 22 | DEC 23 | DEC 24 | | | | | |01| 0|29.87| 0.00| 59| 53| 81|19| 6| 14| 0|30.50| 0.00| 22| 4| 46|34| 6| 10| 0|30.36| 0.00| 23| 19| 89|35| 3| 5| |04| 0|29.76| 0.00| 62| 55| 78|20| 9| 15| 0|30.53| 0.00| 19| 5| 56|30| 2| 4| 0|30.34| 0.00| 23| 18| 85|34| 2| 4| |07| 0|29.79| 0.05| 61| 55| 82|30| 10| 21| 0|30.58| 0.00| 18| 6| 61|32| 2| 4| 0|30.34| 0.00| 23| 19| 88|00| 2| 5| |10| 83|29.98| 0.00| 49| 34| 56|33| 10| 25| 94|30.65| 0.00| 22| 8| 55|00| 2| 4| 81|30.39| 0.00| 25| 15| 66|35| 4| 7| |13| 92|30.07| 0.00| 42| 25| 51|32| 12| 23| 92|30.53| 0.00| 26| 10| 52|16| 3| 7| 93|30.38| 0.00| 28| 14| 56|33| 3| 9| |16| 82|30.20| 0.00| 38| 16| 41|33| 10| 23| 45|30.49| 0.00| 25| 9| 51|09| 2| 6| 82|30.36| 0.00| 29| 15| 55|34| 3| 7| |19| 0|30.37| 0.00| 31| 9| 40|32| 10| 26| 0|30.51| 0.00| 22| 17| 85|35| 2| 4| 0|30.40| 0.00| 27| 16| 65|19| 0| 2| |22| 0|30.47| 0.00| 25| 4| 42|32| 5| 18| 0|30.43| 0.00| 23| 19| 88|02| 2| 3| 0|30.42| 0.00| 24| 16| 74|28| 2| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 25 | DEC 26 | DEC 27 | | | | | |01| 0|30.43| 0.00| 22| 16| 79|16| 1| 1| 0|30.36| 0.00| 14| 11| 90|14| 2| 2| 0|30.26| 0.00| 24| 18| 79|29| 1| 2| |04| 0|30.44| 0.00| 23| 15| 71|00| 2| 3| 0|30.30| 0.00| 12| 9| 92|00| 1| 2| 0|30.29| 0.00| 17| 14| 89|32| 0| 0| |07| 0|30.46| 0.00| 15| 11| 85|32| 2| 3| 0|30.25| 0.00| 14| 11| 91|34| 2| 2| 2|30.34| 0.00| 14| 11| 91|02| 0| 1| |10| 84|30.52| 0.00| 27| 13| 55|33| 2| 5| 92|30.27| 0.00| 23| 19| 87|28| 1| 1| 85|30.40| 0.00| 28| 24| 86|21| 2| 3| |13| 84|30.45| 0.00| 32| 13| 45|31| 3| 6| 95|30.18| 0.00| 31| 21| 68|13| 2| 3| 92|30.35| 0.00| 40| 22| 49|19| 2| 7| |16| 75|30.42| 0.00| 32| 11| 42|05| 1| 2| 83|30.12| 0.00| 32| 21| 65|25| 2| 5| 80|30.31| 0.00| 38| 25| 59|16| 3| 9| |19| 0|30.44| 0.00| 23| 15| 71|00| 1| 1| 0|30.17| 0.00| 24| 19| 82|33| 0| 1| 0|30.31| 0.00| 33| 23| 68|34| 0| 1| |22| 0|30.43| 0.00| 17| 12| 84|22| 1| 2| 0|30.25| 0.00| 23| 19| 86|21| 2| 2| 0|30.28| 0.00| 31| 25| 80|00| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 28 | DEC 29 | DEC 30 | | | | | |01| 0|30.22| 0.00| 30| 25| 85|09| 1| 2| 0|30.02| 0.00| 36| 31| 83|34| 1| 3| 0|29.50| 0.00| 35| 32| 93|26| 3| 7| |04| 0|30.15| 0.00| 31| 27| 86|31| 0| 2| 0|29.95| 0.00| 35| 31| 86|00| 1| 2| 0|29.47| 0.00| 36| 33| 93|28| 1| 5| |07| 0|30.11| 0.00| 32| 28| 86|12| 1| 1| 0|29.91| 0.00| 35| 31| 87|14| 0| 2| 0|29.57| 0.00| 33| 22| 65|32| 12| 22| |10| 88|30.16| 0.00| 36| 31| 83|34| 2| 3| 78|29.90| 0.00| 37| 33| 86|01| 2| 3| 91|29.75| 0.00| 26| 6| 44|34| 12| 23| |13| 90|30.09| 0.02| 41| 31| 67|04| 1| 2| 72|29.75| 0.01| 38| 34| 88|04| 1| 1| 85|29.81| 0.00| 27| 4| 38|34| 17| 29| |16| 67|30.06| 0.02| 40| 31| 71|00| 2| 2| 57|29.68| 0.01| 39| 36| 91|32| 2| 3| 76|29.94| 0.00| 26| 4| 40|33| 10| 21| |19| 0|30.06| 0.00| 37| 32| 82|24| 2| 3| 0|29.62| 0.00| 37| 34| 92|32| 2| 5| 0|30.09| 0.00| 23| 6| 49|32| 7| 12| |22| 0|30.05| 0.00| 36| 30| 81|01| 1| 2| 0|29.58| 0.00| 36| 33| 92|26| 2| 4| 0|30.14| 0.00| 20| 5| 53|21| 1| 4| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | DEC 31 | | | | | | | |01| 0|30.15| 0.00| 20| 5| 52|33| 5| 11| | | |04| 0|30.15| 0.00| 20| 6| 55|32| 3| 5| | | |07| 0|30.18| 0.00| 21| 8| 57|22| 2| 2| | | |10| 95|30.22| 0.00| 22| 14| 71|20| 3| 7| | | |13| 95|30.13| 0.00| 24| 16| 74|19| 2| 7| | | |16| 80|30.10| 0.00| 26| 18| 72|26| 2| 4| | | |19| 0|30.14| 0.00| 20| 15| 83|20| 0| 0| | | |22| 0|30.14| 0.00| 15| 12| 90|03| 0| 1| | | +--+---+-----+-----+---+---+---+--+---+---+--------------------------------------+--------------------------------------+ WEATHER NOTES SUMMARY BY HOURS Percent Sunshine: Values range from 0 to 99 - indicates solar intensity. +--+----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +---+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the five minute-period | | % | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+---+------+---+---+---+-----+----+----+ |01| 0|30.149| 38| 31| 77| 2.1| 31 | 0.4| |04| 0|30.134| 37| 31| 80| 1.7| 26 | 0.5| |07| 6|30.153| 36| 30| 81| 2.3| 29 | 1.2| |10| 82|30.204| 42| 31| 67| 3.9| 31 | 1.7| |13| 83|30.150| 47| 30| 54| 4.7| 30 | 2.1| |16| 67|30.140| 47| 30| 54| 3.3| 31 | 1.7| |19| 0|30.174| 40| 30| 70| 1.9| 30 | 0.8| |22| 0|30.178| 37| 30| 77| 1.6| 30 | 0.6| +--+---+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent) December 1998: Millersville 1SE ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | |0.02|0.03|0.01|0.01| |0.01| | |07 08| | |0.01|0.02|0.01| | | | | | |0.03|0.07|0.03|0.04|0.02|0.01| |0.03| |0.01|0.04|0.05|0.05|08 09|0.05|0.03|0.04|0.01|0.01|0.01|0.01| | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | |0.01|12 13|0.01|0.03|0.04|0.07|0.05|0.08|0.03|0.04|0.04|0.05|0.01|0.02| | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | |0.01| | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | |0.02|0.07| |0.01| | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | |0.01| |0.03|0.03|0.03|0.02|0.02|0.01|0.01|0.01|0.01|0.01| |0.01|28 29|0.01| |0.01|0.01| | |0.01| |0.01| |0.02|0.01|0.01|0.01|0.03|0.01| | |0.01| | | | | |29 30| | | | |0.02| |0.01| | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.07|0.06|0.10|0.11|0.09|0.09|0.09|0.11|0.05|0.06|0.04|0.06|0.11|0.07|0.10|0.05|0.05|0.04|0.06|0.02|0.02|0.06|0.05|0.07|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)