LOCAL CLIMATOLOGICAL DATA Monthly Summary
August 2009
Station: Portsmouth, Virginia - KPWR Latitude: 36° 48' 04" N Longitude: 76° 19' 37" W Elevation (ground): 20 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| 89.2 | 72.8 | 81.0 | 79.1 | 76| 90| 0| 16|1......8.| 0| 0.00| 0.0| 30.07| 30.00|30.035| 1.6| 0.6|138| 14| NE| 0| 0| | |02| 89.2 | 73.8 | 81.5 | 78.3 | 76| 93| 0| 17|1......8.| 0| 0.09| 0.0| 29.99| 29.88|29.928| 3.6| 3.5|182| 20| S| 0| 0| | |03| 88.7 | 73.6 | 81.1 | 80.3 | 76| 87| 0| 17|1......8.| 0| 0.00| 0.0| 30.00| 29.93|29.964| 2.0| 0.9| 98| 15| NE| 0| 0| | |04| 89.9 | 72.5 | 81.2 | 80.4 | 75| 86| 0| 17|.......8.| 0| 0.03| 0.0| 30.00| 29.92|29.965| 1.3| 1.3|150| 21| SE| 0| 0| | |05| 94.2 | 71.0 | 82.6 | 81.7 | 75| 83| 0| 18|1.3.5..8.| 0| 3.10| 0.0| 29.97| 29.87|29.925| 3.4| 2.3|174| 38| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 80.5 | 69.3 | 74.9 | 73.1 | 72| 98| 0| 10|1.3....8.| 0| 0.82| 0.0| 29.98| 29.89|29.936| 2.0| 1.1| 5| 14| SE| 0| 0| | |07| 82.4 | 66.1 | 74.3 | 74.8 | 68| 81| 0| 9|1......8.| 0| 0.00| 0.0| 30.19| 29.99|30.096| 2.0| 1.8| 7| 15| N| 0| 0| | |08| 86.5 | 68.6 | 77.6 | 76.6 | 72| 86| 0| 13|1.3....8.| 0| 0.91| 0.0| 30.24| 30.13|30.186| 2.3| 2.0|164| 18|SSE| 0| 0| | |09| 92.5 | 69.8 | 81.2 | 80.6 | 75| 85| 0| 17|.......8.| 0| 0.00| 0.0| 30.16| 30.03|30.096| 3.2| 2.4|224| 21| W| 0| 0| | |10| 94.5*| 74.2 | 84.3*| 84.2 | 76| 78| 0| 20|.......8.| 0| 0.00| 0.0| 30.04| 29.90|29.986| 2.3| 1.3|241| 16|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 93.3 | 74.8 | 84.1 | 84.0 | 77| 80| 0| 19|..3....8.| 0| T | 0.0| 29.93| 29.84|29.888| 2.6| 1.5|267| 30|WSW| 0| 0| | |12| 90.2 | 71.7 | 80.9 | 78.9 | 75| 89| 0| 16|1.3....8.| 0| 4.23| 0.0| 29.94| 29.86|29.901| 1.0| 0.4| 15| 20| NE| 0| 0| | |13| 78.7 | 71.4 | 75.1 | 73.8 | 73| 99| 0| 10|1........| 0| 0.26| 0.0| 30.10| 29.94|30.020| 0.8| 0.1|244| 18| NE| 0| 0| | |14| 78.7 | 71.3 | 75.0 | 73.5 | 73| 98| 0| 10|1........| 0| 0.95| 0.0| 30.16| 30.08|30.133| 1.8| 1.8| 45| 22| NE| 0| 0| | |15| 81.7 | 71.3 | 76.5 | 75.5 | 73| 92| 0| 12|1........| 0| 0.02| 0.0| 30.16| 30.11|30.135| 3.1| 3.1| 47| 19| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 85.0 | 68.7 | 76.8 | 76.4 | 71| 84| 0| 12|.......8.| 0| 0.00| 0.0| 30.20| 30.13|30.164| 2.5| 2.2| 45| 17| NE| 0| 0| | |17| 89.7 | 67.2 | 78.4 | 77.5 | 70| 80| 0| 14|.........| 0| 0.00| 0.0| 30.21| 30.14|30.176| 0.9| 0.6| 98| 14| NE| 0| 0| | |18| 92.6 | 71.8 | 82.2 | 81.3 | 75| 83| 0| 18|.......8.| 0| 0.00| 0.0| 30.17| 30.01|30.086| 2.8| 2.8|179| 17| S| 0| 0| | |19| 92.8 | 74.4 | 83.6 | 82.9 | 77| 82| 0| 19|..3....8.| 0| T | 0.0| 30.05| 29.95|30.009| 3.7| 3.3|185| 23|WSW| 0| 0| | |20| 93.1 | 75.2 | 84.1 | 83.2 | 78| 84| 0| 19|.......8.| 0| 0.00| 0.0| 30.01| 29.92|29.972| 3.2| 3.2|180| 16| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 91.6 | 75.5 | 83.6 | 81.2 | 77| 88| 0| 19|.......8.| 0| T | 0.0| 29.98| 29.86|29.929| 3.1| 3.0|179| 20| S| 0| 0| | |22| 91.7 | 70.6 | 81.1 | 78.4 | 76| 93| 0| 17|1.3....8.| 0| 0.58| 0.0| 29.88| 29.69|29.792| 1.8| 0.3|124| 23| NE| 0| 0| | |23| 83.2 | 68.0 | 75.6 | 75.6 | 73| 92| 0| 11|1......8.| 0| 0.32| 0.0| 29.94| 29.79|29.864| 0.7| 0.1|337| 14|WSW| 0| 0| | |24| 86.0 | 70.5 | 78.3 | 77.1 | 73| 89| 0| 14|1......8.| 0| 0.01| 0.0| 30.06| 29.93|30.001| 2.3| 1.6| 44| 16| NE| 0| 0| | |25| 84.8 | 69.1 | 76.9 | 76.5 | 73| 89| 0| 12|1......8.| 0| 0.09| 0.0| 30.14| 30.07|30.091| 2.7| 2.7| 45| 18| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 89.0 | 70.7 | 79.8 | 79.3 | 74| 85| 0| 15|1......8.| 0| 0.00| 0.0| 30.10| 30.00|30.059| 1.9| 1.6|216| 19|WSW| 0| 0| | |27| 91.7 | 71.8 | 81.8 | 79.9 | 74| 84| 0| 17|..3....8.| 0| T | 0.0| 30.06| 29.99|30.031| 2.4| 0.7|301| 18| NE| 0| 0| | |28| 88.9 | 73.1 | 81.0 | 79.4 | 76| 89| 0| 16|.......8.| 0| 0.08| 0.0| 30.04| 29.87|29.986| 1.7| 1.7|151| 18|SSE| 0| 0| | |29| 88.4 | 73.3 | 80.9 | 79.7 | 75| 87| 0| 16|.......8.| 0| 0.05| 0.0| 29.85| 29.72|29.758| 2.5| 1.1|258| 22|WSW| 0| 0| | |30| 85.9 | 73.1 | 79.5 | 79.1 | 74| 86| 0| 15|.........| 0| 0.00| 0.0| 29.98| 29.83|29.889| 3.6| 0.5|330| 17|NNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 75.2 | 64.3*| 69.8*| 69.4 | 68| 96| 0| 5|1........| 0| 0.49| 0.0| 30.14| 29.98|30.058| 4.7| 4.2| 20| 22| N| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2719.8|2209.5|------|------|---|----| 0| 460| Days |12.03| 0.0| 30.24| 29.69|30.002| 2.4| 0.4|162| 38| N| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+6.62" or 223% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 87.8| 71.2| 79.5 | 78.4 | 74|87.6|----|----|>.01 Inch 16|40.00| 0.0| 8 | 22 |------|----|----|---| 5 | 1+ | | + +1.2 +1.3 +1.2 ------+---+----+----+----+------------|+6.84" or 121% of normal +------+----+----+---+-------+-------+------+ | | 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 | 0|1506|Thunder 8|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 4.40| 12-13| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 13 | 0 | 0 | 0 |----|----| Clear 5 Partly Cloudy 22 Cloudy 4 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. 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 in Watts/m^2 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:
    FROPAs: 6th, 12th, 23rd, 29th

STATION RECORDS:
AUGUST 2009 WAS THE THIRD WETTEST AUGUST IN THE DATABASE TO 1976.
5th - RAINFALL 3.10" [previous 1.82" in 1994]
5th - WIND GUST TIED 38mph [previous 2007]
12th - RAINFALL 4.23" [previous 1.54" in 1984]
20th - TEMPERATURE TIED MAXIMUM MINIMUM 75 [previous 2002]
21st - TEMPERATURE TIED MAXIMUM MINIMUM 75 [previous 2002] MONTHLY AVERAGE MAXIMUM TEMP OF 87.8 WAS 1.2 AVOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 71.2 WAS 1.3 BELOW NORMAL. MONTHLY AVERAGE TEMP OF 79.5 WAS 1.2 BELOW NORMAL. MAXIMUM TEMP: 95 ON THE 10TH MINIMUM TEMP: 64 ON THE 31ST DAYS WITH TEMPERATURES: MAXIMUM >= 90: 13 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 0.0 COOLING DEGREE DAYS: 450.5 DAYS WITH HEATING DEGREE DAYS: 0 DAYS WITH COOLING DEGREE DAYS: 31 PRECIP TOTAL OF 12.03" WAS 6.62" ABOVE NORMAL (223% OF NORMAL). GREATEST DAILY RAINFALL: 4.23" ON THE 12TH GREATEST 24-HOUR RAINFALL: 4.40" ON THE 12-13TH DAYS WITH MEASUREABLE PRECIP: 16 OR 51.61% AVERAGE DAILY PRECIP: 0.39" NORMAL DAILY PRECIP: 0.17" DAYS WITH PRECIP >= 0.01" 16 DAYS WITH PRECIP >= 0.10" 9 DAYS WITH PRECIP >= 0.50" 6 DAYS WITH PRECIP >= 1.00" 2 DAYS WITH THUNDERSTORMS: 8 NUMBER OF THUNDERSTORMS: 10 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" CLOUDY DAYS: 4 PARTLY CLOUDY DAYS: 22 SUNNY/CLEAR DAYS: 5 DAYS WITH F/GF: 0 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 71.2 WAS 0.1 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 52.8 WAS 0.2 ABOVE NORMAL. YEARLY AVERAGE TEMP OF 62.0 WAS 0.1 ABOVE NORMAL. MAXIMUM TEMP: 95 ON JUNE 2ND, JULY 26TH, AUGUST 10TH MINIMUM TEMP: 16 ON JANUARY 17TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 38 MAXIMUM <= 32: 4 MINIMUM <= 32: 41 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2201.0 COOLING DEGREE DAYS: 1466.0 DAYS WITH HEATING DEGREE DAYS: 116 DAYS WITH COOLING DEGREE DAYS: 125 PRECIP TOTAL OF 40.00" WAS 6.85" ABOVE NORMAL ( 121% OF NORMAL). GREATEST DAILY RAINFALL: 4.23" ON AUGUST 12TH GREATEST 24-HOUR RAINFALL: 4.40" ON AUGUST 12-13TH DAYS WITH MEASUREABLE PRECIP: 93 OF 2438.R 38.27% AVERAGE DAILY PRECIP: 0.16" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 93 DAYS WITH PRECIP >= 0.10" 57 DAYS WITH PRECIP >= 0.50" 24 DAYS WITH PRECIP >= 1.00" 8 DAYS WITH THUNDERSTORMS: 25 NUMBER OF THUNDERSTORMS: 28 DAYS WITH SNOW: 06 SNOWFALL TOTAL: 0.7" CLOUDY DAYS: 45 PARTLY CLOUDY DAYS: 132 SUNNY/CLEAR DAYS: 66 DAYS WITH F/GF: 76 DAYS WITH DENSE FOG: 2 DAYS WITH FROST: 22
OBSERVATIONS AT 3-HOUR INTERVALS
August 2009: Portsmouth, Virginia - KPWR
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 1 | AUG 2 | AUG 3 | | | | | |01| |30.03| 0.00| 75| 74| 97|24| 0| 6| |29.99| 0.00| 75| 73| 95|15| 0| 6| |29.95| 0.00| 75| 74| 97|18| 0| 6| |04| |30.02| 0.00| 73| 72| 98|22| 0| 6| |29.95| 0.00| 74| 73| 98|15| 0| 7| |29.93| 0.00| 74| 74| 98|18| 0| 10| |07| |30.06| 0.00| 73| 73| 99|27| 0| 10| |29.95| 0.00| 75| 75| 99|18| 0| 7| |29.97| 0.00| 74| 73| 99|20| 0| 4| |10| |30.07| 0.00| 76| 75| 95|24| 0| 4| |29.94| 0.00| 80| 78| 92|18| 5| 12| |29.98| 0.00| 82| 77| 85|27| 0| 7| |13| |30.06| 0.00| 85| 79| 83|13| 4| 11| |29.89| 0.00| 89| 81| 78|20| 5| 17| |29.98| 0.00| 87| 77| 74|04| 5| 12| |16| |30.01| 0.00| 86| 77| 75|15| 4| 10| |29.88| 0.00| 79| 78| 97|18| 4| 11| |29.95| 0.00| 86| 78| 78|04| 4| 15| |19| |30.00| 0.00| 84| 78| 83|04| 4| 7| |29.89| 0.00| 78| 75| 90|20| 5| 15| |29.95| 0.00| 85| 77| 78|15| 4| 11| |22| |30.01| 0.00| 78| 75| 93|15| 0| 7| |29.93| 0.00| 75| 74| 96|18| 5| 15| |29.99| 0.00| 79| 75| 88|13| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 4 | AUG 5 | AUG 6 | | | | | |01| |29.98| 0.00| 76| 74| 95|20| 0| 10| |29.92| 0.00| 76| 74| 92|18| 4| 10| |29.97| 0.08| 70| 70|100|13| 4| 14| |04| |29.97| 0.00| 73| 72| 96|00| 0| 0| |29.92| 0.00| 74| 73| 96|18| 0| 6| |29.92| 0.01| 70| 70|100|22| 0| 5| |07| |29.99| 0.00| 73| 72| 98|00| 0| 0| |29.94| 0.00| 74| 73| 98|18| 0| 11| |29.95| 0.00| 70| 70|100|00| 0| 0| |10| |29.99| 0.00| 83| 78| 86|15| 0| 6| |29.95| 0.00| 82| 77| 86|18| 4| 11| |29.95| 0.00| 74| 74|100|24| 0| 7| |13| |29.99| 0.03| 77| 73| 87|13| 6| 21| |29.94| 0.00| 92| 78| 64|18| 5| 19| |29.94| 0.00| 78| 74| 90|33| 5| 14| |16| |29.95| 0.00| 90| 80| 74|15| 4| 12| |29.89| 0.00| 92| 77| 61|18| 5| 17| |29.89| 0.05| 75| 74| 97|04| 5| 14| |19| |29.93| 0.00| 87| 77| 73|18| 0| 7| |29.87| 0.00| 89| 78| 70|22| 0| 5| |29.92| 0.44| 73| 73| 97|33| 0| 11| |22| |29.93| 0.00| 79| 75| 88|13| 0| 7| |29.97| 1.36| 71| 71| 99|00| 7| 38| |29.97| 0.00| 72| 71| 99|00| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 7 | AUG 8 | AUG 9 | | | | | |01| |29.99| 0.00| 69| 69| 99|33| 0| 6| |30.20| 0.00| 71| 68| 89|13| 0| 5| |30.16| 0.00| 72| 72| 99|13| 0| 11| |04| |30.01| 0.00| 68| 67| 99|31| 0| 6| |30.20| 0.00| 69| 67| 92|13| 0| 5| |30.14| 0.00| 71| 71|100|18| 0| 10| |07| |30.07| 0.00| 67| 67|100|31| 0| 5| |30.22| 0.00| 69| 67| 93|00| 0| 0| |30.15| 0.00| 70| 70|100|15| 4| 11| |10| |30.13| 0.00| 77| 70| 80|33| 4| 7| |30.24| 0.00| 78| 72| 81|13| 0| 6| |30.12| 0.00| 80| 74| 84|15| 5| 20| |13| |30.14| 0.00| 81| 66| 61|00| 5| 14| |30.20| 0.00| 82| 75| 79|18| 4| 10| |30.10| 0.00| 89| 79| 73|24| 6| 18| |16| |30.11| 0.00| 81| 67| 62|04| 5| 13| |30.16| 0.00| 86| 77| 75|18| 4| 10| |30.05| 0.00| 92| 81| 70|24| 5| 15| |19| |30.11| 0.00| 80| 67| 64|00| 4| 10| |30.14| 0.00| 83| 76| 80|15| 4| 13| |30.04| 0.00| 89| 78| 71|24| 5| 15| |22| |30.18| 0.00| 74| 68| 81|33| 0| 5| |30.15| 0.19| 75| 74| 95|15| 4| 14| |30.05| 0.00| 81| 77| 85|24| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 10 | AUG 11 | AUG 12 | | | | | |01| |30.02| 0.00| 78| 75| 91|18| 0| 5| |29.93| 0.00| 81| 73| 75|24| 7| 30| |29.88| 0.00| 81| 76| 85|04| 4| 11| |04| |30.02| 0.00| 76| 74| 95|15| 0| 7| |29.90| 0.00| 76| 72| 89|20| 0| 6| |29.87| 0.00| 77| 75| 96|15| 0| 14| |07| |30.03| 0.00| 74| 73| 97|27| 0| 12| |29.91| 0.00| 75| 73| 93|27| 0| 7| |29.89| 0.00| 75| 73| 94|22| 0| 12| |10| |30.04| 0.00| 85| 77| 78|24| 4| 12| |29.91| 0.00| 85| 79| 82|24| 5| 12| |29.91| 0.00| 82| 76| 84|22| 0| 6| |13| |30.01| 0.00| 92| 77| 61|00| 4| 11| |29.90| 0.00| 91| 79| 69|24| 4| 12| |29.92| 0.00| 88| 78| 73|18| 0| 6| |16| |29.95| 0.00| 94| 77| 58|24| 5| 14| |29.86| 0.00| 92| 80| 68|00| 4| 11| |29.87| 0.00| 85| 76| 76|20| 0| 7| |19| |29.91| 0.00| 90| 78| 68|15| 4| 11| |29.84| 0.00| 89| 79| 71|18| 0| 7| |29.93| 1.40| 73| 73|100|06| 0| 10| |22| |29.92| 0.00| 85| 77| 77|15| 0| 11| |29.88| 0.00| 83| 78| 85|15| 0| 5| |29.93| 0.02| 72| 72|100|18| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 13 | AUG 14 | AUG 15 | | | | | |01| |29.95| 0.00| 72| 72|100|18| 0| 7| |30.09| 0.00| 72| 72|100|00| 0| 0| |30.14| 0.00| 72| 72|100|04| 0| 6| |04| |29.95| 0.01| 72| 72|100|18| 0| 5| |30.09| 0.00| 72| 72|100|00| 0| 0| |30.12| 0.00| 72| 72|100|00| 0| 0| |07| |29.98| 0.01| 72| 72|100|00| 0| 0| |30.13| 0.00| 72| 72|100|00| 0| 0| |30.14| 0.00| 72| 72|100|06| 0| 4| |10| |30.04| 0.01| 74| 74|100|18| 0| 6| |30.15| 0.00| 76| 74| 94|04| 4| 10| |30.16| 0.00| 75| 74| 97|04| 6| 14| |13| |30.04| 0.00| 78| 78|100|15| 4| 12| |30.16| 0.01| 76| 74| 95|04| 5| 13| |30.15| 0.00| 80| 74| 82|04| 6| 18| |16| |30.06| 0.06| 75| 74| 97|00| 0| 6| |30.16| 0.25| 74| 73| 98|06| 4| 11| |30.12| 0.00| 81| 74| 79|04| 10| 19| |19| |30.05| 0.00| 75| 74| 99|00| 0| 4| |30.13| 0.05| 72| 72|100|15| 0| 6| |30.12| 0.00| 78| 73| 84|04| 4| 14| |22| |30.10| 0.00| 73| 73|100|00| 0| 0| |30.15| 0.00| 73| 73|100|04| 4| 12| |30.16| 0.00| 73| 72| 94|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 16 | AUG 17 | AUG 18 | | | | | |01| |30.14| 0.00| 71| 70| 98|00| 0| 0| |30.18| 0.00| 70| 69| 96|00| 0| 0| |30.17| 0.00| 72| 69| 88|13| 0| 7| |04| |30.14| 0.00| 69| 69| 99|00| 0| 0| |30.18| 0.00| 69| 68| 97|00| 0| 0| |30.14| 0.00| 72| 72| 97|18| 0| 10| |07| |30.17| 0.00| 69| 69|100|00| 0| 0| |30.18| 0.00| 67| 67| 98|00| 0| 0| |30.12| 0.00| 72| 72| 99|18| 0| 2| |10| |30.20| 0.00| 79| 74| 85|04| 5| 12| |30.20| 0.00| 80| 75| 83|09| 4| 7| |30.11| 0.00| 83| 78| 86|15| 4| 12| |13| |30.19| 0.00| 83| 73| 72|04| 6| 16| |30.20| 0.00| 87| 74| 67|04| 4| 14| |30.09| 0.00| 90| 77| 66|18| 5| 17| |16| |30.15| 0.00| 85| 73| 68|06| 5| 13| |30.16| 0.00| 87| 74| 64|15| 4| 10| |30.04| 0.00| 92| 79| 65|18| 5| 16| |19| |30.13| 0.00| 82| 70| 68|04| 5| 11| |30.14| 0.00| 83| 71| 67|15| 0| 10| |30.01| 0.00| 86| 77| 73|18| 4| 13| |22| |30.18| 0.00| 74| 70| 88|09| 0| 5| |30.16| 0.00| 76| 68| 77|15| 0| 5| |30.04| 0.00| 82| 76| 83|18| 4| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.19 | 0.38 | 0.57 | 0.76 | 1.13 | 1.69 | 2.19 | 2.67 | 3.15 | 3.59 | 3.82 | 4.04 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1704 | 1709 | 1714 | 1720 | 1729 | 1744 | 1757 | 1820 | 1840 | 1857 | 1857 | 1900 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
August 2009: Portsmouth, Virginia - KPWR
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 19 | AUG 20 | AUG 21 | | | | | |01| |30.05| 0.00| 79| 76| 90|18| 4| 11| |29.99| 0.00| 79| 75| 89|18| 4| 11| |29.97| 0.00| 79| 77| 93|18| 4| 14| |04| |30.03| 0.00| 76| 74| 91|15| 0| 10| |29.98| 0.00| 77| 75| 94|18| 4| 11| |29.96| 0.00| 77| 75| 96|18| 0| 11| |07| |30.03| 0.00| 74| 73| 95|18| 4| 11| |29.99| 0.00| 75| 74| 96|18| 0| 10| |29.96| 0.00| 76| 75| 98|18| 4| 10| |10| |30.04| 0.00| 82| 77| 86|15| 4| 12| |30.00| 0.00| 84| 79| 87|18| 4| 11| |29.97| 0.00| 83| 79| 87|18| 5| 15| |13| |30.02| 0.00| 90| 79| 71|24| 6| 18| |30.00| 0.00| 90| 82| 76|18| 5| 15| |29.94| 0.00| 90| 80| 73|18| 6| 18| |16| |29.96| 0.00| 93| 81| 69|18| 5| 20| |29.93| 0.00| 92| 81| 69|18| 5| 14| |29.88| 0.00| 84| 78| 84|18| 4| 16| |19| |29.96| 0.00| 87| 78| 75|18| 4| 16| |29.92| 0.00| 87| 79| 77|18| 4| 11| |29.87| 0.00| 81| 76| 85|18| 4| 13| |22| |30.00| 0.00| 81| 77| 87|15| 0| 7| |29.96| 0.00| 82| 78| 87|13| 0| 6| |29.90| 0.00| 78| 75| 92|13| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 22 | AUG 23 | AUG 24 | | | | | |01| |29.88| 0.00| 78| 77| 97|13| 4| 11| |29.79| 0.00| 70| 70|100|24| 4| 14| |29.95| 0.00| 75| 74| 99|13| 0| 4| |04| |29.84| 0.00| 77| 77| 99|18| 0| 7| |29.81| 0.00| 69| 69|100|27| 0| 10| |29.94| 0.00| 72| 72|100|13| 0| 5| |07| |29.82| 0.00| 76| 76| 99|18| 0| 6| |29.85| 0.00| 68| 68|100|00| 0| 0| |29.99| 0.00| 71| 71|100|13| 0| 4| |10| |29.82| 0.00| 82| 79| 90|27| 0| 11| |29.88| 0.00| 74| 74|100|15| 0| 6| |30.00| 0.00| 77| 75| 93|04| 5| 12| |13| |29.76| 0.00| 90| 80| 74|15| 0| 7| |29.88| 0.00| 82| 76| 81|06| 4| 10| |30.02| 0.00| 85| 75| 74|15| 0| 7| |16| |29.69| 0.00| 80| 75| 86|04| 7| 23| |29.87| 0.00| 83| 75| 79|15| 0| 6| |30.00| 0.00| 84| 76| 76|04| 6| 14| |19| |29.76| 0.05| 72| 72| 99|15| 0| 7| |29.88| 0.00| 82| 76| 83|13| 0| 4| |30.02| 0.00| 81| 74| 81|04| 5| 15| |22| |29.78| 0.00| 72| 72|100|24| 4| 14| |29.94| 0.00| 77| 75| 93|13| 0| 5| |30.05| 0.00| 74| 71| 90|15| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 25 | AUG 26 | AUG 27 | | | | | |01| |30.07| 0.00| 71| 70| 96|15| 0| 4| |30.09| 0.00| 73| 73| 98|00| 0| 0| |30.04| 0.00| 76| 74| 93|18| 0| 7| |04| |30.08| 0.00| 70| 69| 98|00| 0| 0| |30.08| 0.00| 72| 72| 99|18| 0| 5| |30.03| 0.00| 73| 72| 96|18| 0| 7| |07| |30.08| 0.00| 69| 69| 99|00| 0| 0| |30.10| 0.00| 71| 71|100|18| 0| 6| |30.04| 0.00| 72| 71| 98|18| 0| 6| |10| |30.13| 0.00| 80| 74| 83|04| 7| 17| |30.10| 0.00| 78| 76| 93|18| 4| 11| |30.05| 0.00| 80| 76| 86|27| 4| 11| |13| |30.12| 0.00| 84| 75| 74|04| 6| 16| |30.06| 0.00| 87| 76| 70|24| 5| 16| |30.03| 0.00| 89| 78| 69|24| 4| 14| |16| |30.08| 0.00| 84| 74| 72|04| 6| 18| |30.01| 0.00| 89| 77| 69|18| 4| 15| |29.99| 0.00| 91| 78| 65|24| 4| 11| |19| |30.07| 0.00| 79| 76| 92|18| 0| 5| |30.00| 0.00| 85| 75| 72|18| 0| 10| |30.03| 0.00| 81| 70| 68|04| 6| 18| |22| |30.09| 0.00| 75| 73| 94|00| 0| 0| |30.05| 0.00| 79| 74| 85|18| 0| 6| |30.06| 0.00| 76| 73| 90|04| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 28 | AUG 29 | AUG 30 | | | | | |01| |30.04| 0.00| 75| 73| 93|11| 0| 10| |29.85| 0.00| 75| 75| 99|00| 0| 0| |29.83| 0.00| 76| 74| 92|18| 4| 10| |04| |30.02| 0.00| 74| 73| 97|18| 0| 4| |29.75| 0.01| 74| 74| 99|04| 0| 6| |29.83| 0.00| 75| 73| 94|18| 4| 10| |07| |30.03| 0.00| 74| 73| 99|13| 0| 6| |29.75| 0.00| 74| 74|100|02| 0| 4| |29.87| 0.00| 73| 72| 97|15| 0| 7| |10| |30.04| 0.00| 80| 78| 93|13| 0| 7| |29.75| 0.00| 79| 77| 93|00| 5| 16| |29.90| 0.00| 80| 76| 89|24| 4| 11| |13| |30.00| 0.00| 87| 80| 79|13| 4| 15| |29.73| 0.00| 85| 77| 77|24| 6| 18| |29.90| 0.00| 86| 77| 75|24| 5| 15| |16| |29.94| 0.00| 86| 76| 73|13| 5| 16| |29.73| 0.00| 88| 77| 70|24| 5| 14| |29.89| 0.00| 85| 75| 74|33| 6| 17| |19| |29.93| 0.00| 82| 77| 83|15| 4| 16| |29.75| 0.00| 84| 75| 75|18| 4| 11| |29.91| 0.00| 81| 74| 78|04| 4| 11| |22| |29.92| 0.00| 75| 74| 96|00| 0| 0| |29.81| 0.00| 78| 75| 88|18| 0| 7| |29.98| 0.00| 78| 74| 89|06| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | AUG 31 | | | | | | | |01| |29.98| 0.00| 75| 73| 96|00| 0| 0| | | |04| |30.00| 0.00| 74| 74| 98|27| 4| 10| | | |07| |30.02| 0.00| 73| 71| 94|04| 6| 18| | | |10| |30.08| 0.00| 69| 65| 86|00| 10| 22| | | |13| |30.09| 0.08| 67| 66| 99|00| 6| 17| | | |16| |30.07| 0.11| 68| 67| 97|00| 5| 15| | | |19| |30.08| 0.02| 66| 66| 98|00| 5| 12| | | |22| |30.14| 0.02| 65| 64| 97|04| 4| 12| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
WEATHER NOTES SUMMARY BY HOURS
+--+-----------------------------+---------+ 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 ten 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| |30.006| 75| 73| 95| 1.3| 18 | 0.8| |04| |29.994| 73| 72| 97| 0.6| 24 | 0.4| |07| |30.012| 72| 72| 98| 0.9| 09 | 0.4| |10| |30.030| 79| 75| 88| 3.7| 03 | 0.7| |13| |30.017| 84| 76| 78| 4.6| 15 | 0.0| |16| |29.983| 84| 76| 77| 4.5| 09 | 0.8| |19| |29.984| 80| 74| 82| 2.8| 10 | 0.6| |22| |30.020| 76| 73| 91| 1.3| 05 | 0.4| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
August 2009: Portsmouth, Virginia - KPWR
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | | | | | | | |0.09| | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | |0.03| | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | |0.01|1.61|1.36|0.12|05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| |0.08|0.04|0.06|0.01| | | | | | | | | |0.08|0.02|0.05| | |0.44|0.04| | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | |0.19|0.72|08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | |0.01| | | | | | | | | | | | | | |0.45|2.18|1.40|0.04|0.13|0.02| |12 13| | | | |0.01| | |0.01| | |0.01|0.03|0.03| | |0.03|0.06|0.08| | | | | | |13 14| | | | | | | | | | | | | |0.01|0.02|0.09|0.25|0.52| |0.05|0.01| | | |14 15| | |0.02| | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | |0.42|0.07|0.05|0.03|0.01| | |22 23| | | | | | | | | | | | | | | | | | | | | | | |0.32|23 24| | | | | | | | | | | | | | | | | | |0.01| | | | | |24 25| | | | | | | | | | | | | | | | | | |0.09| | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | |0.01|0.07| | |28 29| | | | |0.01|0.03| | |0.01| | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | |0.04|0.01| |0.01|0.01| |0.01|0.08|0.08| | |0.11|0.04| |0.02| |0.04|0.02|0.02|31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.08|0.07|0.06|0.03|0.07|0.01|0.01|0.02|0.01|0.01|0.04|0.11|0.12|0.10|0.23|0.47|1.51|2.35|1.96|0.14|1.86|1.59|1.18|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.)