LOCAL CLIMATOLOGICAL DATA Monthly Summary April 1999 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| 59 | 52 | 55.5 | 55.7 | 47| 76| 10| 0|.........| 0| 0.22| 0.0|30.09|29.92|30.015| 1.3| 0.8|166| 13| W| 7|280| 34 | |02| 70 | 48 | 59.0 | 60.2 | 52| 74| 6| 0|.........| 0| 0.00| 0.0|30.12|29.95|30.028| 2.4| 1.2|103| 15| E| 8|140| 43 | |03| 64 | 46 | 55.0 | 53.8 | 45| 71| 10| 0|.........| 0| 0.01| 0.0|30.18|29.95|30.096| 3.5| 3.0|126| 16| SE| 9|130| 44 | |04| 80 | 47 | 63.5*| 61.1 | 52| 74| 2| 0|.........| 0| 0.00| 0.0|30.01|29.71|29.846| 3.1| 1.6|332| 20| NW| 12|300| 38 | |05| 58 | 37 | 47.5 | 48.3 | 32| 57| 18| 0|.........| 0| 0.00| 0.0|30.31|29.99|30.208| 2.3| 1.7| 81| 15| E| 7| 80| 44 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 61 | 31*| 46.0 | 47.9 | 36| 67| 19| 0|.........| 0| 0.00| 0.0|30.31|29.95|30.169| 3.1| 2.8|151| 20|ESE| 10|120| 47 | |07| 74 | 47 | 60.5 | 60.2 | 42| 56| 5| 0|.........| 0| 0.01| 0.0|30.12|29.95|30.035| 3.7| 3.2|278| 23| NW| 13|310| 46 | |08| 86*| 41 | 63.5 | 64.2 | 41| 49| 2| 0|.........| 0| 0.26| 0.0|29.99|29.72|29.854| 3.1| 2.1|275| 23|WNW| 12|310| 44 | |09| 65 | 46 | 55.5 | 55.5 | 42| 62| 10| 0|.........| 0| 0.40| 0.0|29.76|29.38|29.598| 3.5| 2.9| 63| 23| E| 13|350| 42 | |10| 63 | 40 | 51.5 | 50.7 | 34| 57| 14| 0|.........| 0| 0.00| 0.0|30.10|29.61|29.913| 3.4| 3.2|350| 17| E| 9|340| 46 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 47 | 35 | 41.0*| 43.9 | 39| 86| 24| 0|.........| 0| 0.51| 0.0|30.09|29.73|29.922| 2.1| 1.3|103| 17| SE| 9|140| 36 | |12| 56 | 41 | 48.5 | 49.1 | 39| 71| 17| 0|.........| 0| 0.00| 0.0|29.95|29.72|29.823| 5.5| 5.2|319| 29| NW| 16|310| 47 | |13| 63 | 39 | 51.0 | 51.6 | 25| 38| 14| 0|.........| 0| 0.00| 0.0|29.97|29.78|29.894| 7.0| 7.0|319| 30|WNW| 15|310| 49 | |14| 70 | 42 | 56.0 | 56.9 | 24| 30| 9| 0|.........| 0| 0.00| 0.0|29.91|29.75|29.849| 6.4| 6.2|309| 33|WNW| 16|310| 48 | |15| 61 | 40 | 50.5 | 49.7 | 37| 66| 15| 0|.........| 0| 0.22| 0.0|29.87|29.55|29.775| 1.6| 0.3|253| 11| SW| 6|310| 42 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 65 | 42 | 53.5 | 53.2 | 43| 73| 12| 0|.........| 0| 0.01| 0.0|29.69|29.48|29.550| 1.6| 0.2|219| 15|WNW| 8|150| 45 | |17| 61 | 33 | 47.0 | 48.8 | 32| 57| 18| 0|.........| 0| 0.00| 0.0|29.88|29.66|29.741| 3.3| 3.0|302| 28| N| 14|310| 48 | |18| 60 | 40 | 50.0 | 51.1 | 34| 53| 15| 0|.........| 0| 0.00| 0.0|30.09|29.87|29.966| 4.9| 4.8|306| 28|WNW| 15|310| 48 | |19| 60 | 34 | 47.0 | 48.1 | 34| 62| 18| 0|.........| 0| 0.00| 0.0|30.09|29.97|30.036| 2.7| 2.3|290| 26|WNW| 14|310| 47 | |20| 57 | 39 | 48.0 | 49.5 | 39| 68| 17| 0|.........| 0| 0.03| 0.0|30.07|29.84|29.950| 3.3| 2.7|328| 24|WNW| 14|310| 49 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 58 | 33 | 45.5 | 45.5 | 37| 76| 20| 0|.........| 0| 0.15| 0.0|30.12|29.99|30.056| 1.2| 0.8|221| 14| W| 7|270| 46 | |22| 79 | 46 | 62.5 | 60.8 | 50| 69| 3| 0|.........| 0| 0.03| 0.0|30.02|29.85|29.942| 2.2| 1.1|164| 12| SE| 7|120| 47 | |23| 62 | 51 | 56.5 | 55.5 | 49| 78| 9| 0|.........| 0| 0.09| 0.0|30.05|29.73|29.885| 2.0| 1.7| 45| 13| N| 6|350| 41 | |24| 62 | 37 | 49.5 | 50.0 | 28| 46| 16| 0|.........| 0| 0.00| 0.0|30.27|30.04|30.180| 3.0| 2.9|343| 17|WNW| 9|310| 50 | |25| 65 | 33 | 49.0 | 48.9 | 27| 47| 16| 0|.........| 0| 0.00| 0.0|30.28|30.06|30.186| 2.0| 0.4| 30| 16| NW| 8|280| 49 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 78 | 35 | 56.5 | 58.4 | 33| 46| 9| 0|.........| 0| 0.00| 0.0|30.07|29.73|29.883| 2.7| 2.4|296| 21| NW| 10|280| 48 | |27| 66 | 46 | 56.0 | 57.2 | 33| 41| 9| 0|.........| 0| 0.00| 0.0|30.12|29.80|30.005| 2.4| 1.4| 54| 14|ESE| 7|110| 49 | |28| 65 | 44 | 54.5 | 53.9 | 39| 59| 11| 0|.........| 0| 0.00| 0.0|30.24|30.10|30.186| 2.4| 1.8|119| 13| E| 9|100| 49 | |29| 69 | 36 | 52.5 | 54.1 | 35| 54| 13| 0|.........| 0| 0.00| 0.0|30.22|30.09|30.166| 2.1| 1.6| 85| 20|ESE| 10|100| 50 | |30| 67 | 41 | 54.0 | 54.2 | 35| 49| 11| 0|.........| 0| 0.00| 0.0|30.30|30.16|30.249| 2.6| 2.3| 69| 19| E| 8| 80| 50 | +--+-----+-----+------+------+---+----+----+----+---------+--+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | Sum| +-----+-----+------+------+---+----+----+----+ Number of +-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | 1951| 1222|------|------|---|----| 372| 0| Days | 1.94| 0.0|30.31|29.38|29.967| 3.0| 1.0|334| 33|WNW| 16|310|1350| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date| Date|------|----|----|---| Date | Date | Avg| +-----+-----+------+------+---+----+----+----+ +-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | 65.0| 40.7| 52.9 | 53.3 | 38|60.4|----|----|>.01 Inch 12|13.03| 9.4| 5+| 9 |------|----|----|---| 14 | 12+ | 46| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | | Season |Snow, Ice | | | | Number of Days | to Date |>1.0 Inch 0|Greatest in 24 Hours and Dates| Greatest Depth on Ground | +----------------+-----------------+----+----+------------+-------------+----------------+ of Snow, Ice Pellets or Ice | | Max Temperature| Min temperature |4557| 0|Thunder 0|Precipitation| Snow, Ice Plts | and Date | +-------+--------+--------+--------+----+----+------------+------+------+--------+-------+-------------+--------------------+ | > 90°F| < 32°F | < 32°F | < 0°F |----|----|Heavy Fog 0| 0.51| 11 | 0.0 | - | 0 | - | +-------+--------+--------+--------+----+----+------------+------+------+--------+----+--+-------------+--------------------+ | 0 | 0 | 1 | 0 |----|----|Clear 0 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.OBSERVATIONS AT 3-HOUR INTERVALS April 1999: 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |01| 0|30.06| 0.00| 54| 30| 40|21| 1| 4| 0|29.97| 0.00| 56| 52| 89|22| 0| 1| 0|30.13| 0.00| 48| 41| 76|09| 1| 4| |04| 0|30.05| 0.00| 56| 37| 48|23| 1| 4| 0|29.97| 0.00| 56| 53| 90|33| 0| 3| 0|30.13| 0.00| 47| 40| 77|07| 2| 5| |07| 55|30.09| 0.03| 54| 47| 76|05| 1| 1| 77|30.00| 0.00| 55| 52| 90|02| 0| 1| 62|30.17| 0.00| 47| 41| 80|08| 1| 2| |10| 87|30.07| 0.02| 54| 50| 86|22| 0| 0| 91|30.05| 0.00| 64| 55| 72|04| 3| 6| 93|30.16| 0.00| 53| 44| 72|10| 4| 7| |13| 81|30.02| 0.01| 56| 52| 87|16| 1| 4| 90|30.04| 0.00| 67| 53| 60|10| 5| 10| 93|30.11| 0.00| 60| 46| 59|11| 6| 12| |16| 66|29.95| 0.00| 57| 53| 88|10| 3| 7| 92|30.03| 0.00| 69| 53| 54|11| 4| 10| 92|30.06| 0.00| 63| 48| 56|18| 6| 12| |19| 0|29.94| 0.00| 56| 52| 89|06| 0| 2| 0|30.04| 0.00| 62| 53| 70|12| 2| 3| 0|30.03| 0.00| 56| 47| 70|18| 4| 11| |22| 0|29.95| 0.00| 56| 52| 89|30| 0| 2| 0|30.09| 0.00| 52| 41| 64|09| 4| 10| 0|30.02| 0.00| 54| 47| 77|17| 2| 4| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |01| 0|29.93| 0.00| 53| 47| 80|16| 2| 5| 0|30.02| 0.00| 47| 43| 87|07| 2| 4| 0|30.30| 0.00| 36| 29| 77|23| 1| 1| |04| 0|29.88| 0.00| 50| 45| 82|17| 1| 2| 0|30.07| 0.00| 45| 39| 81|04| 1| 6| 0|30.26| 0.00| 33| 28| 84|21| 1| 1| |07| 39|29.85| 0.00| 49| 45| 86|02| 1| 2| 23|30.18| 0.00| 44| 39| 85|07| 3| 7| 57|30.30| 0.00| 32| 28| 87|28| 0| 1| |10| 85|29.84| 0.00| 68| 57| 66|22| 6| 10| 94|30.27| 0.00| 47| 26| 44|02| 4| 10| 92|30.25| 0.00| 54| 37| 51|15| 4| 9| |13| 87|29.79| 0.00| 76| 57| 50|32| 6| 12| 81|30.26| 0.00| 51| 27| 39|10| 2| 9| 89|30.19| 0.00| 59| 37| 43|17| 4| 10| |16| 81|29.74| 0.00| 78| 57| 47|32| 5| 11| 95|30.25| 0.00| 57| 28| 33|13| 4| 8| 85|30.09| 0.00| 59| 41| 51|14| 7| 15| |19| 33|29.78| 0.00| 66| 60| 81|26| 2| 3| 65|30.26| 0.00| 54| 29| 39|08| 2| 6| 73|30.02| 0.00| 58| 45| 61|16| 5| 9| |22| 0|29.94| 0.00| 52| 48| 87|04| 4| 10| 0|30.30| 0.00| 42| 30| 61|34| 0| 1| 0|29.99| 0.00| 51| 45| 80|15| 2| 5| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |01| 0|29.97| 0.00| 49| 45| 87|21| 4| 7| 0|29.98| 0.00| 47| 38| 71|04| 0| 1| 0|29.73| 0.00| 55| 44| 65|00| 1| 2| |04| 0|30.00| 0.00| 54| 47| 78|33| 2| 5| 0|29.95| 0.00| 44| 37| 77|09| 1| 1| 0|29.70| 0.00| 54| 45| 70|14| 1| 2| |07| 51|30.05| 0.00| 48| 44| 87|21| 2| 4| 60|29.90| 0.00| 43| 37| 81|09| 1| 2| 35|29.72| 0.00| 57| 40| 52|02| 3| 6| |10| 94|30.11| 0.00| 63| 41| 44|28| 7| 12| 91|29.90| 0.00| 66| 43| 43|26| 4| 8| 90|29.63| 0.00| 59| 39| 47|11| 6| 11| |13| 91|30.10| 0.00| 68| 42| 38|28| 7| 16| 77|29.83| 0.00| 80| 42| 26|31| 7| 13| 93|29.53| 0.00| 61| 37| 40|11| 6| 13| |16| 92|30.04| 0.00| 73| 38| 28|31| 7| 18| 89|29.76| 2.88| 86| 43| 23|24| 6| 15| 93|29.43| 0.00| 63| 39| 41|09| 6| 11| |19| 62|30.01| 0.00| 71| 37| 29|31| 4| 9| 66|29.75| 0.00| 81| 40| 24|23| 2| 5| 0|29.55| 0.00| 52| 42| 68|00| 7| 15| |22| 0|30.02| 0.00| 54| 40| 58|21| 1| 3| 0|29.78| 0.00| 64| 44| 48|00| 1| 2| 0|29.57| 0.00| 47| 44| 92|01| 4| 7| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |01| 0|29.66| 0.00| 46| 42| 87|03| 4| 7| 0|30.08| 0.00| 39| 32| 76|18| 1| 2| 0|29.77| 0.00| 46| 44| 97|33| 1| 2| |04| 0|29.75| 0.00| 45| 39| 81|01| 6| 10| 0|30.04| 0.00| 37| 31| 81|27| 1| 2| 0|29.74| 0.00| 43| 42| 98|25| 1| 2| |07| 48|29.87| 0.00| 44| 38| 79|32| 2| 7| 33|30.04| 0.00| 44| 36| 74|33| 1| 1| 53|29.75| 0.00| 42| 41| 98|21| 1| 2| |10| 97|29.95| 0.00| 51| 32| 48|00| 7| 14| 66|30.01| 0.05| 45| 41| 89|02| 1| 4| 84|29.80| 0.00| 53| 42| 65|33| 10| 28| |13| 82|29.97| 0.00| 55| 30| 39|00| 4| 7| 60|29.96| 0.01| 46| 43| 90|03| 2| 5| 89|29.86| 0.00| 49| 38| 65|34| 10| 25| |16| 93|29.96| 0.00| 61| 30| 31|00| 4| 9| 67|29.78| 0.00| 47| 42| 82|16| 6| 15| 99|29.85| 0.00| 56| 38| 51|33| 9| 18| |19| 67|29.99| 0.00| 58| 32| 38|01| 2| 4| 42|29.77| 0.01| 46| 44| 97|05| 1| 4| 77|29.88| 0.00| 53| 35| 50|31| 7| 14| |22| 0|30.08| 0.00| 46| 32| 58|27| 1| 1| 0|29.78| 0.00| 46| 44| 97|35| 1| 1| 0|29.92| 0.00| 51| 31| 46|31| 7| 13| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |01| 0|29.96| 0.00| 47| 27| 46|32| 4| 9| 0|29.88| 0.00| 51| 18| 28|33| 6| 13| 0|29.86| 0.00| 56| 23| 28|30| 4| 7| |04| 0|29.94| 0.00| 43| 28| 55|31| 4| 12| 0|29.87| 0.00| 47| 20| 35|31| 6| 10| 0|29.84| 0.00| 43| 31| 61|35| 2| 3| |07| 64|29.96| 0.00| 40| 28| 62|32| 5| 10| 65|29.91| 0.00| 43| 25| 48|29| 3| 7| 74|29.85| 0.00| 41| 32| 70|18| 2| 2| |10| 97|29.95| 0.00| 49| 25| 40|34| 8| 18| 94|29.89| 0.00| 55| 27| 35|29| 5| 18| 90|29.85| 0.00| 59| 29| 32|35| 2| 4| |13| 92|29.87| 0.00| 56| 24| 30|32| 9| 15| 80|29.85| 0.00| 63| 27| 26|34| 11| 28| 82|29.82| 0.00| 55| 43| 62|35| 1| 2| |16| 97|29.82| 0.00| 62| 23| 23|30| 9| 18| 96|29.77| 0.00| 68| 25| 20|32| 14| 25| 85|29.72| 0.00| 52| 45| 76|17| 1| 2| |19| 69|29.81| 0.00| 60| 22| 24|32| 7| 15| 69|29.78| 0.00| 67| 27| 23|31| 7| 19| 32|29.69| 0.03| 47| 44| 90|17| 1| 2| |22| 0|29.86| 0.00| 56| 20| 25|32| 5| 16| 0|29.85| 0.00| 61| 25| 26|29| 3| 6| 0|29.62| 0.00| 47| 44| 93|09| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |01| 0|29.55| 0.00| 47| 45| 94|34| 0| 1| 0|29.69| 0.00| 40| 34| 79|27| 1| 2| 0|29.89| 0.00| 48| 33| 55|32| 3| 17| |04| 0|29.52| 0.00| 47| 45| 94|21| 0| 1| 0|29.68| 0.00| 36| 32| 87|33| 2| 4| 0|29.91| 0.00| 46| 34| 61|33| 4| 8| |07| 51|29.55| 0.00| 48| 46| 94|35| 0| 1| 59|29.72| 0.00| 34| 31| 90|30| 1| 1| 63|29.92| 0.00| 41| 34| 77|19| 1| 2| |10| 90|29.56| 0.00| 51| 48| 90|12| 2| 5| 92|29.74| 0.00| 57| 31| 37|28| 4| 13| 97|29.96| 0.00| 53| 36| 51|33| 9| 18| |13| 93|29.54| 0.00| 61| 49| 64|10| 3| 9| 92|29.72| 0.00| 58| 33| 39|33| 4| 6| 88|29.96| 0.00| 59| 35| 41|31| 9| 18| |16| 91|29.51| 0.00| 59| 50| 70|34| 7| 11| 92|29.70| 0.00| 60| 31| 34|29| 6| 13| 89|29.97| 0.00| 57| 31| 37|29| 9| 18| |19| 67|29.54| 0.00| 63| 31| 30|32| 3| 7| 79|29.77| 0.00| 56| 32| 40|34| 6| 14| 67|30.01| 0.00| 55| 32| 42|31| 6| 14| |22| 0|29.66| 0.00| 49| 34| 55|23| 0| 1| 0|29.85| 0.00| 49| 32| 52|31| 4| 6| 0|30.08| 0.00| 50| 35| 56|30| 2| 4| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.26 | 0.26 | 0.26 | 0.27 | 0.31 | 0.36 | 0.37 | 0.37 | 0.38 | 0.38 | 0.38 | 0.38 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 08 | 08 | 08 | 09 | 09 | 09 | 09 | 09 | 09 | 09 | 09 | 09 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1601 | 1601 | 1601 | 1928 | 1932 | 1947 | 1951 | 1951 | 2038 | 2038 | 2038 | 2038 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 April 1999: 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |01| 0|30.08| 0.00| 43| 34| 70|24| 1| 2| 0|29.98| 0.00| 45| 37| 73|13| 1| 1| 0|30.05| 0.00| 38| 33| 82|28| 1| 2| |04| 0|30.05| 0.00| 37| 33| 86|04| 0| 1| 0|29.92| 0.00| 47| 41| 80|09| 2| 4| 0|30.02| 0.00| 35| 30| 84|34| 0| 1| |07| 62|30.05| 0.00| 35| 32| 91|20| 0| 1| 65|29.85| 0.00| 46| 41| 84|01| 1| 2| 67|30.07| 0.00| 34| 30| 86|17| 1| 2| |10| 92|30.07| 0.00| 53| 38| 55|27| 4| 10| 92|29.87| 0.00| 51| 43| 73|28| 3| 7| 91|30.11| 0.00| 52| 37| 55|21| 2| 4| |13| 93|30.06| 0.00| 55| 33| 43|30| 6| 11| 92|29.92| 0.00| 53| 39| 57|30| 9| 20| 91|30.09| 0.00| 57| 37| 47|22| 3| 7| |16| 94|30.00| 0.00| 60| 34| 38|25| 6| 15| 93|29.97| 0.00| 53| 37| 53|34| 7| 11| 80|30.06| 0.02| 49| 43| 81|22| 1| 4| |19| 72|29.99| 0.00| 57| 34| 41|17| 1| 7| 77|30.02| 0.00| 54| 36| 50|34| 4| 6| 65|30.05| 0.00| 49| 44| 82|16| 1| 1| |22| 0|30.01| 0.00| 45| 33| 63|16| 0| 1| 0|30.05| 0.00| 44| 36| 73|11| 1| 1| 0|30.04| 0.00| 48| 43| 84|09| 0| 0| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |01| 0|30.00| 0.00| 48| 44| 86|07| 0| 0| 0|29.89| 0.00| 59| 52| 76|04| 1| 4| 0|30.08| 0.00| 52| 43| 71|04| 3| 11| |04| 0|29.97| 0.00| 48| 44| 87|07| 1| 4| 0|29.89| 0.00| 53| 47| 81|04| 1| 3| 0|30.12| 0.00| 43| 31| 62|33| 3| 5| |07| 73|29.97| 0.00| 48| 44| 87|20| 0| 0| 63|29.92| 0.00| 52| 46| 81|10| 1| 1| 70|30.22| 0.00| 38| 26| 62|33| 3| 4| |10| 93|29.99| 0.00| 55| 49| 79|22| 2| 7| 80|29.90| 0.00| 59| 49| 67|03| 1| 3| 96|30.26| 0.00| 49| 24| 38|06| 4| 10| |13| 85|29.95| 0.00| 70| 52| 51|20| 3| 8| 88|29.82| 0.01| 55| 49| 80|09| 4| 9| 85|30.22| 0.00| 55| 24| 30|01| 4| 9| |16| 90|29.90| 0.00| 76| 56| 48|12| 5| 9| 50|29.77| 0.02| 55| 49| 82|35| 2| 2| 95|30.16| 0.00| 61| 26| 27|04| 4| 10| |19| 66|29.90| 0.00| 71| 53| 52|16| 2| 6| 50|29.83| 0.00| 56| 51| 84|09| 2| 4| 73|30.16| 0.00| 59| 27| 30|31| 2| 4| |22| 0|29.89| 0.00| 66| 54| 63|14| 2| 4| 0|29.99| 0.00| 54| 48| 79|00| 3| 7| 0|30.19| 0.00| 45| 29| 54|27| 0| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |01| 0|30.21| 0.00| 38| 30| 74|00| 1| 2| 0|30.06| 0.00| 42| 32| 67|33| 1| 2| 0|29.84| 0.00| 58| 36| 44|35| 2| 3| |04| 0|30.22| 0.00| 39| 28| 64|02| 1| 2| 0|29.99| 0.00| 38| 31| 78|22| 0| 1| 0|29.93| 0.00| 53| 33| 47|02| 1| 5| |07| 72|30.26| 0.00| 34| 26| 72|31| 1| 2| 68|29.95| 0.00| 36| 31| 82|25| 1| 1| 71|29.99| 0.00| 47| 33| 58|34| 1| 2| |10| 93|30.27| 0.00| 52| 20| 29|02| 4| 6| 91|29.94| 0.00| 61| 37| 40|02| 2| 5| 95|30.05| 0.00| 57| 29| 34|00| 3| 7| |13| 83|30.23| 0.00| 57| 23| 27|03| 2| 6| 81|29.86| 0.00| 72| 32| 23|31| 6| 11| 85|30.03| 0.00| 62| 28| 28|10| 4| 8| |16| 92|30.12| 0.00| 63| 23| 22|27| 2| 7| 91|29.79| 0.00| 77| 37| 24|27| 5| 14| 94|30.00| 0.00| 65| 34| 32|09| 5| 11| |19| 71|30.10| 0.00| 59| 34| 39|15| 1| 4| 74|29.74| 0.00| 76| 33| 21|26| 4| 7| 76|30.05| 0.00| 61| 28| 29|10| 3| 7| |22| 0|30.12| 0.00| 47| 31| 53|19| 1| 1| 0|29.80| 0.00| 59| 37| 44|27| 1| 2| 0|30.10| 0.00| 51| 34| 52|01| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |01| 0|30.12| 0.00| 48| 41| 76|27| 2| 2| 0|30.21| 0.00| 44| 38| 79|01| 1| 1| 0|30.20| 0.00| 48| 32| 53|02| 1| 6| |04| 0|30.13| 0.00| 47| 41| 79|24| 1| 3| 0|30.17| 0.00| 39| 34| 84|35| 1| 2| 0|30.23| 0.00| 43| 32| 64|04| 1| 2| |07| 72|30.19| 0.00| 46| 40| 80|08| 2| 4| 75|30.20| 0.00| 38| 34| 86|25| 0| 1| 72|30.25| 0.00| 42| 36| 79|26| 1| 1| |10| 96|30.24| 0.00| 57| 39| 51|15| 4| 8| 91|30.21| 0.00| 60| 41| 48|07| 2| 6| 94|30.29| 0.00| 57| 35| 44|05| 4| 12| |13| 91|30.21| 0.00| 62| 36| 38|09| 4| 12| 86|30.17| 0.00| 66| 34| 31|07| 5| 14| 83|30.28| 0.00| 61| 36| 39|07| 5| 13| |16| 93|30.17| 0.00| 65| 40| 39|13| 6| 10| 91|30.12| 0.00| 68| 29| 24|06| 3| 10| 93|30.24| 0.00| 67| 38| 34|07| 5| 18| |19| 76|30.18| 0.00| 59| 37| 43|09| 4| 7| 77|30.12| 0.00| 64| 28| 26|10| 2| 5| 72|30.22| 0.00| 61| 36| 39|12| 4| 9| |22| 0|30.21| 0.00| 50| 40| 68|18| 0| 1| 0|30.14| 0.00| 52| 33| 48|11| 1| 1| 0|30.26| 0.00| 52| 34| 50|09| 2| 8| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----------------------------------------+--------------------------------------+--------------------------------------+ 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|29.972| 47| 37| 70| 1.7| 33 | 0.7| |04| 0|29.965| 44| 36| 74| 1.6| 34 | 0.9| |07| 59|29.992| 43| 36| 78| 1.3| 34 | 0.4| |10| 90|30.006| 55| 38| 54| 4.0| 34 | 1.4| |13| 86|29.975| 60| 37| 46| 5.1| 35 | 1.9| |16| 88|29.924| 62| 38| 44| 5.5| 32 | 1.2| |19| 57|29.933| 59| 38| 50| 3.3| 33 | 0.9| |22| 0|29.972| 51| 38| 63| 1.8| 35 | 0.6| +--+---+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent) April 1999: 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| | | | | | |0.03|0.02|0.04|0.03|0.02|0.02|0.02|0.01|0.01| |0.01| | | | | |0.01| |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | |0.01| | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | |0.01| | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | |0.15|0.11| | | | | | | |08 09| | | | | | |0.01| |0.01| | | | | | | | | | |0.37|0.01| | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | |0.02|0.10|0.08|0.05|0.01|0.08| | | |0.16|0.01| | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | |0.01|0.02| | |0.01|0.09|0.05|0.04| | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.01| | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | |0.03| | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | |0.01|0.07|0.05|0.02| | | | | | | |21 22| |0.01| |0.01|0.01| | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | |0.04| |0.02|0.02| |0.01| | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.01|0.01|0.00|0.01|0.04|0.00|0.05|0.02|0.08|0.13|0.10|0.07|0.08|0.12|0.10|0.22|0.15|0.26|0.06|0.41|0.01|0.00|0.01|0.00|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.)