LOCAL CLIMATOLOGICAL DATA Monthly Summary May 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| 61 | 60 | 60.5 | 61.0 | 60| 99| 5| 0|.........| 0| 0.01| 0.0|29.66|29.63|29.645| 0.8| 0.8|121| 7|SSE| 4|110| 0 | |02| 71 | 56 | 63.5 | 61.9 | 61| 99| 2| 0|.........| 0| 0.34| 0.0|29.66|29.54|29.595| 1.8| 0.5|208| 14| NW| 7|310| 40 | |03| 78 | 54 | 66.0 | 63.7 | 63| 99| 0| 1|.........| 0| 0.36| 0.0|29.81|29.64|29.716| 1.6| 0.9|213| 22| N| 7|290| 42 | |04| 73 | 58 | 65.5 | 64.8 | 64| 99| 0| 0|.........| 0| 0.07| 0.0|29.82|29.74|29.800| 1.8| 1.7|134| 15|ESE| 7|120| 44 | |05| 69 | 59 | 64.0 | 63.3 | 62| 99| 1| 0|.........| 0| 0.16| 0.0|29.95|29.78|29.881| 2.0| 1.5|129| 15|ESE| 7|130| 41 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 71 | 56 | 63.5 | 62.6 | 62| 99| 2| 0|.........| 0| 0.08| 0.0|29.98|29.90|29.947| 1.0| 0.8|105| 10|ESE| 6|130| 44 | |07| 72 | 53 | 62.5 | 62.0 | 61| 99| 3| 0|.........| 0| 0.19| 0.0|29.97|29.76|29.894| 1.6| 1.4|115| 12| E| 6|140| 39 | |08| 70 | 60 | 65.0 | 63.8 | 52| 74| 0| 0|.........| 0| 0.34| 0.0|29.78|29.49|29.591| 2.6| 2.2|100| 17| E| 7|120| 38 | |09| 70 | 57 | 63.5 | 62.4 | 5| 12| 2| 0|.........| 0| 0.08| 0.0|29.79|29.58|29.678| 2.8| 2.7|339| 19|WNW| 7|330| 38 | |10| 64 | 57 | 60.5 | 60.7 | 1| 10| 5| 0|.........| 0| 0.11| 0.0|29.80|29.70|29.735| 1.8| 0.9| 25| 11| E| 6|300| 40 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 58 | 54 | 56.0 | 56.1 |-24| 2| 9| 0|.........| 0| 0.33| 0.0|29.79|29.67|29.721| 1.7| 1.5| 78| 14|ESE| 6| 90| 36 | |12| 55 | 51 | 53.0*| 53.6 |-18| 4| 12| 0|.........| 0| 0.90| 0.0|30.04|29.74|29.886| 1.6| 1.2| 59| 17| E| 6| 80| 32 | |13| 71 | 50 | 60.5 | 59.1 |-23| 1| 5| 0|.........| 0| 0.00| 0.0|30.15|30.01|30.090| 2.0| 1.7| 94| 14| E| 7|100| 47 | |14| 79 | 44*| 61.5 | 60.8 |-17| 3| 4| 0|.........| 0| 0.00| 0.0|30.17|30.07|30.128| 1.2| 0.8| 99| 10|ESE| 6|110| 47 | |15| 89 | 48 | 68.5 | 68.9 |-18| 1| 0| 3|.........| 0| 0.00| 0.0|30.12|29.98|30.056| 1.1| 0.2|123| 10|WNW| 6|300| 44 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 96*| 57 | 76.5 | 76.0 |-15| 1| 0| 11|.........| 0| 0.00| 0.0|30.03|29.91|29.980| 1.2| 0.4|269| 12| NW| 7|300| 44 | |17| 87 | 66 | 76.5 | 75.6 |-18| 0| 0| 11|.........| 0| 0.00| 0.0|30.05|29.95|30.005| 1.4| 1.0|122| 11|ESE| 6|120| 46 | |18| 90 | 56 | 73.0 | 74.8 |-19| 0| 0| 8|.........| 0| 0.00| 0.0|30.14|29.97|30.052| 1.6| 1.4|315| 17| NW| 8|300| 46 | |19| 94 | 62 | 78.0 | 78.4 |-17| 0| 0| 13|.........| 0| 0.00| 0.0|30.00|29.82|29.926| 2.8| 2.8|300| 22|WNW| 10|300| 47 | |20| 92 | 65 | 78.5 | 79.6 |-16| 0| 0| 13|.........| 0| 0.00| 0.0|29.87|29.77|29.828| 2.6| 2.5|300| 18|WNW| 10|300| 48 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 87 | 65 | 76.0 | 76.9 |-17| 0| 0| 11|.........| 0| 0.00| 0.0|29.87|29.68|29.769| 2.6| 2.5|306| 25| W| 10|310| 48 | |22| 75 | 51 | 63.0 | 63.8 |-25| 0| 2| 0|.........| 0| 0.00| 0.0|30.00|29.86|29.917| 1.9| 1.8|314| 17|WNW| 9|290| 43 | |23| 76 | 54 | 65.0 | 62.9 | 0| 19| 0| 0|.........| 0| 0.00| 0.0|30.03|29.82|29.984| 1.2| 0.6|261| 10|ESE| 6|120| 48 | |24| 76 | 48 | 62.0 | 62.8 | 50| 66| 3| 0|.........| 0| 0.06| 0.0|30.07|29.96|30.013| 1.1| 0.6|190| 10|SSW| 6| 90| 43 | |25| 86 | 57 | 71.5 | 71.8 | 59| 68| 0| 6|.........| 0| 0.03| 0.0|29.98|29.83|29.883| 2.4| 2.0|295| 24|NNW| 11|310| 45 | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 81 | 60 | 70.5 | 71.5 | 57| 62| 0| 5|.........| 0| 0.00| 0.0|30.04|29.83|29.934| 1.7| 1.6|315| 23|WNW| 10|290| 45 | |27| 74 | 58 | 66.0 | 66.9 | 59| 74| 0| 1|.........| 0| 0.00| 0.0|30.10|30.01|30.062| 0.8| 0.5|225| 8|SSW| 4|320| 41 | |28| 83 | 55 | 69.0 | 68.6 | 59| 74| 0| 4|.........| 0| 0.00| 0.0|30.14|30.05|30.098| 1.4| 0.9|132| 12| E| 6| 90| 47 | |29| 88 | 61 | 74.5 | 74.7 | 65| 74| 0| 9|.........| 0| 0.00| 0.0|30.10|29.91|30.019| 1.5| 1.4|132| 14|ESE| 6|110| 42 | |30| 92 | 67 | 79.5*| 79.2 | 66| 66| 0| 14|.........| 0| 0.00| 0.0|30.03|29.94|29.990| 1.3| 0.3|131| 10|WNW| 6|310| 47 | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 91 | 68 | 79.5 | 80.5 | 68| 66| 0| 14|.........| 0| 0.00| 0.0|29.98|29.64|29.817| 2.5| 2.1|182| 20| E| 8|120| 48 | +--+-----+-----+------+------+---+----+----+----+---------+--+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | Sum| +-----+-----+------+------+---+----+----+----+ Number of +-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | 2419| 1767|------|------|---|----| 55| 124| Days | 3.06| 0.0|30.17|29.49|29.892| 1.7| 0.1|127| 25| W| 11|310|1289| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+---+---+---+---+----+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date| Date|------|----|----|---| Date | Date | Avg| +-----+-----+------+------+---+----+----+----+ +-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | 78.0| 57.0| 67.5 | 67.4 | 24|44.1|----|----|>.01 Inch 13|23.30| 1.9| 14 | 8 |------|----|----|---| 21 | 25 | 42| +-----+-----+------+------+---+----+----+----+------------+-----+-----+-----+-----+------+----+----+---+-------+-------+----+ | | 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 |4236| 182|Thunder 0|Precipitation| Snow, Ice Plts | and Date | +-------+--------+--------+--------+----+----+------------+------+------+--------+-------+-------------+--------------------+ | > 90°F| < 32°F | < 32°F | < 0°F |----|----|Heavy Fog 0| 1.05| 11-12| 0.0 | - | 0 | - | +-------+--------+--------+--------+----+----+------------+------+------+--------+----+--+-------------+--------------------+ | 6 | 0 | 0 | 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 May 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 1 | MAY 2 | MAY 3 | | | | | |01| | | | | | | | | | 0|29.63| 0.00| 61| 60| 99|08| 1| 2| 0|29.66| 0.00| 57| 56| 99|14| 0| 0| |04| | | | | | | | | | 0|29.59| 0.00| 60| 59| 99|12| 2| 6| 0|29.66| 0.00| 56| 55| 99|14| 1| 2| |07| | | | | | | | | | 51|29.58| 0.00| 59| 58| 99|14| 2| 4| 72|29.68| 0.00| 55| 54| 99|34| 0| 1| |10| | | | | | | | | | 79|29.58| 0.00| 61| 60| 99|13| 2| 7| 87|29.72| 0.00| 61| 60| 99|35| 0| 3| |13| | | | | | | | | | 89|29.57| 0.00| 65| 64| 99|25| 4| 9| 86|29.73| 0.00| 72| 71| 99|25| 5| 11| |16| | | | | | | | | | 85|29.56| 0.00| 65| 64| 99|10| 0| 1| 82|29.70| 0.00| 77| 76| 99|12| 2| 3| |19| | | | | | | | | | 29|29.61| 0.00| 63| 62| 99|22| 3| 5| 22|29.74| 0.00| 71| 70| 99|27| 1| 1| |22| 0|29.65| 0.00| 61| 60| 99|10| 2| 4| 0|29.66| 0.03| 58| 57| 99|33| 1| 2| 0|29.77| 0.03| 62| 61| 99|10| 2| 4| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 4 | MAY 5 | MAY 6 | | | | | |01| 0|29.81| 0.03| 62| 61| 99|11| 0| 1| 0|29.81| 0.00| 62| 61| 99|09| 0| 1| 0|29.94| 0.00| 59| 58| 99|10| 0| 2| |04| 0|29.76| 0.00| 61| 60| 99|22| 1| 2| 0|29.84| 0.00| 62| 61| 99|12| 3| 7| 0|29.92| 0.00| 58| 57| 99|30| 0| 0| |07| 48|29.79| 0.00| 59| 58| 99|14| 0| 2| 54|29.87| 0.00| 62| 61| 99|13| 1| 2| 49|29.95| 0.00| 60| 59| 99|35| 0| 1| |10| 85|29.80| 0.00| 64| 63| 99|18| 1| 2| 81|29.89| 0.00| 66| 65| 99|10| 4| 7| 84|29.96| 0.00| 64| 63| 99|00| 0| 2| |13| 89|29.81| 0.00| 68| 67| 99|12| 3| 6| 67|29.89| 0.00| 65| 64| 99|10| 2| 5| 61|29.96| 0.08| 64| 63| 99|13| 0| 1| |16| 87|29.80| 0.00| 71| 70| 99|17| 3| 6| 67|29.89| 0.00| 67| 66| 99|18| 2| 5| 92|29.92| 0.00| 69| 68| 99|13| 3| 7| |19| 77|29.81| 0.00| 68| 67| 99|12| 5| 9| 75|29.89| 0.00| 64| 63| 99|30| 1| 4| 75|29.95| 0.00| 68| 67| 99|05| 1| 6| |22| 0|29.81| 0.00| 67| 66| 99|18| 3| 10| 0|29.94| 0.00| 61| 60| 99|12| 2| 6| 0|29.98| 0.00| 59| 58| 99|26| 0| 1| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 7 | MAY 8 | MAY 9 | | | | | |01| 0|29.96| 0.00| 55| 54| 99|22| 0| 1| 0|29.74| 0.01| 62| 61| 99|03| 1| 2| 0|29.61| 0.00| 60| 6| 12|05| 2| 6| |04| 0|29.94| 0.00| 55| 54| 99|31| 0| 1| 0|29.65| 0.01| 62| 61| 99|13| 1| 4| 0|29.61| 0.00| 59|-13| 4|04| 2| 5| |07| 51|29.95| 0.00| 59| 58| 99|07| 1| 1| 26|29.62| 0.01| 63| 62| 99|15| 3| 7| 35|29.63| 0.00| 58| 18| 22|33| 2| 4| |10| 83|29.94| 0.00| 61| 60| 99|04| 2| 4| 53|29.57| 0.00| 64| 63| 99|05| 4| 7| 75|29.67| 0.02| 62| 21| 21|00| 2| 6| |13| 89|29.90| 0.00| 67| 66| 99|13| 4| 7| 73|29.54| 0.01| 66| 65| 99|11| 2| 6| 82|29.68| 0.00| 66| 11| 12|00| 2| 10| |16| 74|29.84| 0.00| 71| 70| 99|12| 2| 5| 83|29.51| 0.00| 68| 48| 48|08| 4| 11| 79|29.68| 0.00| 65| 2| 8|33| 3| 7| |19| 29|29.83| 0.01| 64| 63| 99|09| 2| 4| 53|29.53| 0.00| 64| 42| 44|06| 2| 6| 39|29.73| 0.00| 65| -5| 5|35| 6| 19| |22| 0|29.82| 0.02| 64| 63| 99|09| 1| 2| 0|29.59| 0.00| 62| 28| 28|00| 2| 4| 0|29.78| 0.00| 63| -7| 5|34| 4| 8| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 10 | MAY 11 | MAY 12 | | | | | |01| 0|29.77| 0.00| 62| 2| 9|35| 4| 7| 0|29.72| 0.00| 57|-25| 1|09| 1| 4| 0|29.77| 0.01| 54|-10| 6|10| 2| 9| |04| 0|29.73| 0.00| 59| 9| 14|33| 2| 6| 0|29.69| 0.02| 55|-26| 1|05| 2| 10| 0|29.76| 0.00| 53|-14| 5|33| 2| 5| |07| 44|29.73| 0.00| 59| 10| 15|33| 1| 4| 32|29.69| 0.00| 55|-26| 1|35| 1| 4| 32|29.79| 0.02| 54|-10| 6|07| 1| 3| |10| 72|29.74| 0.00| 62| -2| 7|02| 1| 2| 77|29.71| 0.00| 57|-25| 1|04| 3| 11| 49|29.86| 0.02| 54|-16| 4|05| 2| 8| |13| 76|29.74| 0.00| 62| 8| 12|15| 1| 2| 81|29.72| 0.00| 57|-25| 1|10| 2| 4| 60|29.90| 0.19| 54|-19| 3|07| 3| 9| |16| 82|29.72| 0.00| 62| 6| 11|01| 1| 3| 68|29.73| 0.09| 57|-25| 1|35| 1| 2| 48|29.95| 0.02| 52|-28| 1|08| 4| 12| |19| 31|29.72| 0.00| 61| 3| 10|07| 1| 3| | | | | | | | | | 40|29.98| 0.00| 54|-27| 1|35| 1| 4| |22| 0|29.74| 0.00| 58|-24| 1|09| 4| 9| 0|29.78| 0.04| 55|-15| 4|08| 2| 4| 0|30.03| 0.00| 53|-27| 1|11| 1| 3| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 13 | MAY 14 | MAY 15 | | | | | |01| 0|30.04| 0.00| 53|-27| 1|10| 1| 4| 0|30.14| 0.00| 50|-11| 7|25| 1| 2| 0|30.10| 0.00| 52|-28| 1|25| 0| 2| |04| 0|30.05| 0.00| 52|-28| 1|09| 2| 7| 0|30.13| 0.00| 46|-25| 3|31| 0| 1| 0|30.08| 0.00| 50|-29| 1|00| 0| 0| |07| 53|30.09| 0.00| 52|-28| 1|34| 1| 4| 59|30.15| 0.00| 46|-16| 6|35| 1| 1| 51|30.10| 0.00| 50|-29| 1|09| 0| 1| |10| 87|30.13| 0.00| 59|-24| 1|10| 3| 7| 88|30.16| 0.00| 61|-22| 1|28| 2| 4| 86|30.08| 0.00| 74|-14| 1|26| 4| 5| |13| 79|30.10| 0.00| 65|-20| 1|04| 3| 8| 81|30.13| 0.00| 73|-15| 1|35| 2| 6| 79|30.05| 0.00| 86| -7| 1|04| 2| 4| |16| 87|30.07| 0.00| 69|-17| 1|15| 2| 4| 87|30.10| 0.00| 78|-12| 1|13| 4| 7| 85|30.00| 0.00| 87| -7| 1|12| 3| 7| |19| 73|30.08| 0.00| 66|-19| 1|08| 2| 7| 73|30.09| 0.00| 74|-14| 1|13| 3| 6| 69|30.01| 0.00| 84| -8| 1|15| 0| 2| |22| 0|30.13| 0.00| 56|-26| 1|15| 1| 5| 0|30.13| 0.00| 58|-24| 1|11| 0| 1| 0|30.03| 0.00| 68|-18| 1|11| 0| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 16 | MAY 17 | MAY 18 | | | | | |01| 0|30.01| 0.00| 63|-21| 1|04| 0| 1| 0|29.98| 0.00| 71|-21| 0|04| 0| 1| 0|30.05| 0.00| 66|-24| 0|05| 1| 2| |04| 0|29.99| 0.00| 59|-24| 1|07| 0| 1| 0|29.97| 0.00| 69|-22| 0|00| 0| 1| 0|30.07| 0.00| 61|-27| 0|00| 0| 0| |07| 55|30.02| 0.00| 59|-24| 1|05| 0| 0| 60|30.00| 0.00| 68|-23| 0|28| 1| 2| 56|30.10| 0.00| 57|-29| 0|34| 0| 1| |10| 81|30.00| 0.00| 83| -9| 1|02| 1| 2| 86|30.04| 0.00| 75|-19| 0|14| 1| 2| 86|30.12| 0.00| 81|-15| 0|35| 2| 4| |13| 81|29.97| 0.00| 91| -4| 1|31| 6| 9| 86|30.03| 0.00| 84|-13| 0|05| 2| 4| 88|30.08| 0.00| 86|-12| 0|27| 4| 9| |16| 82|29.94| 0.00| 95| -7| 0|19| 2| 4| 87|29.99| 0.00| 86|-12| 0|15| 4| 9| 84|30.02| 0.00| 89|-10| 0|32| 3| 7| |19| 74|29.93| 0.00| 85|-13| 0|13| 2| 4| 74|29.99| 0.00| 82|-14| 0|14| 1| 2| 71|29.99| 0.00| 86|-12| 0|26| 1| 2| |22| 0|29.98| 0.00| 74|-19| 0|09| 1| 2| 0|30.04| 0.00| 71|-21| 0|03| 1| 2| 0|30.00| 0.00| 73|-20| 0|11| 0| 3| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.06 | 0.07 | 0.09 | 0.10 | 0.13 | 0.16 | 0.17 | 0.20 | 0.24 | 0.27 | 0.34 | 0.38 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 10 | 03 | 05 | 05 | 03 | 03 | 03 | 12 | 12 | 12 | 12 | 12 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1934 | 1930 | 1633 | 1637 | 1950 | 2002 | 2006 | 1406 | 1406 | 1434 | 1503 | 1516 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 May 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 | +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 19 | MAY 20 | MAY 21 | | | | | |01| 0|29.99| 0.00| 70|-21| 0|33| 1| 4| 0|29.84| 0.00| 67|-23| 0|24| 1| 2| 0|29.80| 0.00| 75|-19| 0|20| 0| 2| |04| 0|29.97| 0.00| 63|-26| 0|31| 3| 6| 0|29.83| 0.00| 71|-21| 0|31| 2| 8| 0|29.76| 0.00| 67|-23| 0|34| 0| 1| |07| 60|29.99| 0.00| 66|-24| 0|29| 2| 6| 72|29.85| 0.00| 68|-23| 0|18| 0| 1| 75|29.79| 0.00| 70|-21| 0|00| 1| 2| |10| 89|29.98| 0.00| 83|-14| 0|30| 8| 15| 90|29.87| 0.00| 84|-13| 0|30| 7| 18| 85|29.77| 0.00| 84|-13| 0|30| 4| 10| |13| 86|29.93| 0.00| 91| -9| 0|31| 3| 10| 88|29.84| 0.00| 89|-10| 0|27| 5| 10| 85|29.75| 0.00| 84|-13| 0|29| 3| 9| |16| 86|29.88| 0.00| 93| -8| 0|29| 4| 12| 85|29.81| 0.00| 91| -9| 0|26| 3| 9| 86|29.71| 0.00| 84|-13| 0|32| 4| 14| |19| 70|29.85| 0.00| 89|-10| 0|31| 3| 7| 67|29.79| 0.00| 86|-12| 0|15| 1| 4| 73|29.74| 0.00| 80|-16| 0|33| 4| 12| |22| 0|29.87| 0.00| 72|-20| 0|27| 1| 2| 0|29.81| 0.00| 79|-16| 0|26| 1| 3| 0|29.84| 0.00| 71|-21| 0|29| 2| 7| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 22 | MAY 23 | MAY 24 | | | | | |01| 0|29.88| 0.00| 65|-24| 0|35| 2| 4| 0|30.01| 0.00| 59|-28| 0|30| 1| 3| 0|30.01| 0.00| 52| 48| 86|32| 0| 1| |04| 0|29.90| 0.00| 55|-30| 0|03| 0| 1| 0|29.99| 0.00| 56|-30| 0|09| 1| 1| 0|29.99| 0.00| 50| 46| 89|23| 0| 0| |07| 36|29.92| 0.00| 54|-31| 0|31| 1| 2| 74|30.01| 0.00| 56|-30| 0|14| 0| 1| 51|30.01| 0.00| 49| 46| 91|00| 0| 1| |10| 72|29.94| 0.00| 64|-25| 0|04| 2| 5| 87|30.01| 0.00| 62|-26| 0|12| 2| 4| 74|30.07| 0.00| 69| 48| 46|11| 1| 3| |13| 78|29.92| 0.00| 69|-22| 0|34| 5| 12| 91|29.99| 0.00| 65|-24| 0|12| 1| 3| 82|30.04| 0.00| 75| 45| 34|23| 4| 6| |16| 68|29.89| 0.00| 74|-19| 0|25| 5| 10| 72|29.91| 0.00| 74| 56| 51|18| 1| 4| 80|30.01| 0.00| 72| 49| 44|26| 2| 4| |19| 77|29.90| 0.00| 72|-20| 0|28| 3| 7| 73|29.95| 0.00| 71| 48| 43|22| 2| 6| 73|29.99| 0.00| 72| 54| 52|21| 1| 5| |22| 0|29.95| 0.00| 59|-28| 0|20| 1| 1| 0|30.00| 0.00| 60| 51| 70|04| 0| 1| 0|30.02| 0.00| 62| 51| 66|10| 0| 1| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 25 | MAY 26 | MAY 27 | | | | | |01| 0|29.97| 0.01| 60| 57| 90|32| 2| 2| 0|29.87| 0.00| 70| 61| 71|23| 1| 2| 0|30.04| 0.00| 61| 56| 83|00| 0| 1| |04| 0|29.91| 0.00| 60| 57| 91|14| 0| 1| 0|29.87| 0.00| 66| 60| 81|08| 0| 0| 0|30.04| 0.00| 60| 56| 87|15| 0| 0| |07| 58|29.89| 0.00| 61| 58| 92|12| 0| 1| 72|29.91| 0.00| 65| 59| 82|30| 0| 1| 60|30.06| 0.00| 62| 57| 85|20| 0| 1| |10| 88|29.88| 0.00| 71| 65| 82|34| 3| 8| 84|29.93| 0.00| 75| 55| 48|32| 3| 10| 78|30.07| 0.00| 71| 59| 63|24| 2| 4| |13| 90|29.85| 0.00| 83| 63| 49|28| 9| 15| 85|29.93| 0.00| 78| 54| 43|33| 4| 14| 75|30.09| 0.00| 72| 59| 62|20| 2| 5| |16| 86|29.85| 0.00| 86| 58| 38|30| 9| 22| 79|29.94| 0.00| 78| 53| 41|31| 2| 7| 76|30.06| 0.00| 73| 60| 61|23| 2| 4| |19| 66|29.86| 0.00| 81| 55| 40|33| 2| 4| 78|29.98| 0.00| 76| 56| 48|32| 1| 6| 73|30.06| 0.00| 72| 58| 60|12| 2| 7| |22| 0|29.88| 0.00| 74| 59| 58|28| 2| 3| 0|30.03| 0.00| 64| 56| 75|20| 0| 1| 0|30.09| 0.00| 65| 60| 83|06| 0| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 28 | MAY 29 | MAY 30 | | | | | |01| 0|30.09| 0.00| 60| 56| 89|02| 0| 1| 0|30.08| 0.00| 64| 60| 89|12| 0| 1| 0|29.99| 0.00| 73| 65| 75|16| 0| 1| |04| 0|30.08| 0.00| 56| 53| 91|02| 0| 1| 0|30.06| 0.00| 63| 60| 91|07| 0| 0| 0|29.96| 0.00| 71| 67| 87|05| 1| 2| |07| 59|30.10| 0.00| 58| 55| 93|24| 1| 4| 18|30.06| 0.00| 65| 62| 93|16| 2| 4| 53|30.00| 0.00| 68| 65| 90|35| 1| 1| |10| 77|30.13| 0.00| 65| 62| 90|00| 1| 4| 78|30.05| 0.00| 75| 67| 74|26| 2| 6| 85|30.01| 0.00| 84| 64| 49|33| 2| 3| |13| 90|30.12| 0.00| 80| 59| 47|12| 4| 7| 82|30.01| 0.00| 85| 71| 61|15| 3| 7| 83|30.01| 0.00| 90| 68| 47|09| 2| 4| |16| 85|30.08| 0.00| 82| 59| 44|14| 2| 8| 85|29.95| 0.00| 86| 71| 59|16| 2| 9| 83|29.97| 0.00| 89| 67| 47|08| 2| 6| |19| 74|30.07| 0.00| 77| 63| 59|11| 3| 7| 75|29.93| 0.00| 85| 66| 51|06| 1| 2| 73|29.96| 0.00| 85| 68| 54|15| 1| 2| |22| 0|30.10| 0.00| 68| 62| 82|02| 0| 2| 0|29.99| 0.00| 74| 67| 79|07| 1| 2| 0|30.00| 0.00| 75| 67| 76|08| 1| 2| +--+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+---+-----+-----+---+---+---+--+---+---+ | MAY 31 | | | | | | | |01| 0|29.97| 0.00| 73| 67| 80|09| 1| 2| | | |04| 0|29.92| 0.00| 70| 65| 85|07| 0| 2| | | |07| 67|29.91| 0.00| 70| 66| 88|10| 1| 3| | | |10| 87|29.88| 0.00| 80| 70| 69|25| 2| 4| | | |13| 90|29.82| 0.00| 89| 69| 50|13| 6| 17| | | |16| 88|29.74| 0.00| 91| 71| 49|22| 5| 17| | | |19| 76|29.68| 0.00| 86| 69| 55|21| 2| 14| | | |22| 0|29.66| 0.00| 84| 70| 61|23| 2| 5| | | +--+---+-----+-----+---+---+---+--+---+---+--------------------------------------+--------------------------------------+ 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|29.909| 61| 20| 46| 0.8| 01 | 0.3| |04| 0|29.891| 59| 18| 47| 0.8| 05 | 0.3| |07| 52|29.908| 59| 19| 48| 0.8| 01 | 0.1| |10| 80|29.919| 69| 23| 41| 2.4| 34 | 0.9| |13| 81|29.903| 74| 25| 37| 3.3| 29 | 0.4| |16| 80|29.874| 76| 28| 36| 2.9| 21 | 0.5| |19| 63|29.884| 74| 27| 38| 2.0| 07 | 0.2| |22| 0|29.906| 65| 22| 44| 1.2| 08 | 0.3| +--+---+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent) May 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| | | | | | | | | | | | | | | | | | | | | |0.01| | |01 02|0.01| | | | | | | | |0.01| | | | | | | | | |0.25|0.01|0.05|0.01| |02 03| | | | | | | | | | | | | | | | | | | |0.15|0.07|0.04| |0.10|03 04|0.03|0.03|0.01| | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | |0.05| | |0.11| | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | |0.04|0.04| | | | | | | | | | |06 07| | | | | | | | | | | | | | | | |0.06|0.01|0.02| |0.01|0.03|0.03|0.03|07 08|0.02|0.03|0.09|0.03|0.01|0.04|0.02| | |0.01|0.02|0.04|0.02|0.01| | | | | | | | | | |08 09| | |0.01| | | |0.01| | |0.03|0.01|0.01| | | | | | |0.01| | | | | |09 10| | | | |0.01| | | |0.01| | |0.01| | |0.01| | |0.01| |0.06| | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| |0.01|0.01|0.03|0.02|0.01| |0.01| |0.01| | | |0.01| |0.10|0.01| | | |0.06|0.04|0.01| |11 12|0.02| | |0.01|0.02|0.04|0.05|0.02|0.16|0.05|0.05|0.06|0.09|0.14|0.12|0.05| |0.01| | |0.01| | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | |0.06|24 25|0.02| | | |0.01| | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.10|0.07|0.12|0.07|0.07|0.09|0.08|0.03|0.17|0.11|0.08|0.12|0.15|0.25|0.13|0.15|0.18|0.03|0.03|0.46|0.16|0.17|0.05|0.19|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.)