LOCAL CLIMATOLOGICAL DATA Monthly Summary
July 2011
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| 87.3 | 65.6 | 76.4 | 77.9 | 65| 68| 0| 12|.......8.| 0| 0.00| 0.0| 30.07| 29.99|30.010| 2.5| 1.7|340| 17|WSW| 0| 0| | |02| 89.4 | 66.6 | 78.0 | 79.5 | 65| 64| 0| 13|..3......| 0| 0.00| 0.0| 30.09| 30.00|30.041| 1.8| 1.0| 34| 17|ENE| 0| 0| | |03| 94.4 | 72.1 | 83.3 | 82.2 | 73| 74| 0| 18|.......8.| 0| T | 0.0| 30.00| 29.86|29.932| 2.0| 1.8|193| 21|WSW| 0| 0| | |04| 96.4 | 70.0 | 83.2 | 80.9 | 72| 77| 0| 18|..3....8.| 0| 0.54| 0.0| 29.96| 29.82|29.909| 3.3| 1.7|175| 25| NE| 0| 0| | |05| 90.0 | 68.9 | 79.4 | 78.6 | 73| 83| 0| 15|.......8.| 0| 0.00| 0.0| 29.98| 29.92|29.947| 1.6| 0.4|197| 16| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 85.9 | 68.9 | 77.4 | 74.8 | 73| 94| 0| 13|1.3....8.| 0| 0.99| 0.0| 30.01| 29.92|29.969| 1.7| 1.5|181| 22| S| 0| 0| | |07| 90.4 | 67.5 | 78.9 | 77.7 | 73| 86| 0| 14|.......8.| 0| T | 0.0| 29.99| 29.90|29.951| 1.9| 1.3|193| 18| SE| 0| 0| | |08| 91.3 | 71.1 | 81.2 | 80.7 | 76| 85| 0| 16|1......8.| 0| 0.00| 0.0| 29.92| 29.74|29.842| 0.8| 0.7|177| 14| S| 0| 0| | |09| 85.3 | 71.4 | 78.4 | 78.0 | 72| 83| 0| 13|1.3......| 0| 0.64| 0.0| 30.02| 29.79|29.886| 3.7| 3.0| 28| 23| NE| 0| 0| | |10| 89.4 | 67.3 | 78.4 | 78.9 | 70| 77| 0| 13|1......8.| 0| 0.00| 0.0| 30.07| 30.00|30.035| 0.7| 0.7| 51| 20|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 93.0 | 69.4 | 81.2 | 80.7 | 74| 81| 0| 16|12.....8.| 0| 0.00| 0.0| 30.08| 29.89|30.005| 2.1| 1.9|165| 16| SE| 0| 0| | |12| 97.1 | 74.5 | 85.8 | 84.7 | 75| 74| 0| 21|.......8.| 0| 0.00| 0.0| 29.86| 29.77|29.822| 3.3| 2.7|217| 18|WSW| 0| 0| | |13| 93.8 | 74.6 | 84.2 | 85.3 | 75| 73| 0| 20|.......8.| 0| 0.00| 0.0| 29.84| 29.75|29.800| 3.2| 2.4|331| 28|NNW| 0| 0| | |14| 79.4 | 68.5 | 73.9 | 75.6 | 65| 71| 0| 9|.........| 0| 0.00| 0.0| 30.07| 29.84|29.962| 8.4| 8.0| 42| 25| NE| 0| 0| | |15| 84.4 | 59.6*| 72.0*| 73.7 | 62| 68| 0| 7|.........| 0| 0.00| 0.0| 30.14| 30.04|30.086| 0.6| 0.5|152| 14|SSE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 86.4 | 62.5 | 74.4 | 75.3 | 65| 71| 0| 10|.........| 0| 0.00| 0.0| 30.20| 30.13|30.168| 1.0| 1.0|154| 18|SSE| 0| 0| | |17| 86.5 | 68.0 | 77.3 | 77.4 | 67| 71| 0| 13|.........| 0| 0.00| 0.0| 30.24| 30.14|30.191| 1.4| 0.6|161| 17| NE| 0| 0| | |18| 92.4 | 66.7 | 79.6 | 79.3 | 68| 71| 0| 15|.........| 0| 0.00| 0.0| 30.16| 29.93|30.050| 2.3| 2.1|192| 16| S| 0| 0| | |19| 95.4 | 68.5 | 81.9 | 81.7 | 72| 72| 0| 17|.......8.| 0| 0.00| 0.0| 29.95| 29.79|29.859| 2.8| 2.2|199| 18|WSW| 0| 0| | |20| 91.8 | 73.9 | 82.9 | 82.7 | 75| 78| 0| 18|.......8.| 0| 0.00| 0.0| 29.88| 29.82|29.848| 1.8| 0.5| 73| 18| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 97.9 | 75.8 | 86.9 | 86.2 | 79| 81| 0| 22|.......8.| 0| 0.00| 0.0| 29.89| 29.81|29.854| 1.8| 1.7|173| 14|SSE| 0| 0| | |22|102.4*| 77.5 | 89.9*| 89.4 | 79| 73| 0| 25|.......8.| 0| 0.00| 0.0| 29.95| 29.86|29.910| 2.7| 2.5|178| 18| S| 0| 0| | |23|102.0 | 74.1 | 88.1 | 86.7 | 78| 76| 0| 23|1.3....8.| 0| 0.97| 0.0| 30.04| 29.91|29.964| 3.3| 2.7|188| 24| SE| 0| 0| | |24| 94.2 | 72.6 | 83.4 | 81.5 | 76| 85| 0| 19|.......8.| 0| 0.03| 0.0| 29.97| 29.86|29.939| 2.4| 1.1|257| 25|WSW| 0| 0| | |25| 93.2 | 72.3 | 82.8 | 80.9 | 76| 87| 0| 18|..3....8.| 0| 0.67| 0.0| 29.91| 29.71|29.828| 1.9| 1.1|196| 30|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 90.5 | 71.6 | 81.1 | 79.8 | 75| 86| 0| 17|.......8.| 0| 0.01| 0.0| 29.83| 29.73|29.787| 2.7| 1.2|304| 16|NNW| 0| 0| | |27| 89.1 | 72.1 | 80.6 | 80.6 | 71| 76| 0| 16|.......8.| 0| 0.00| 0.0| 30.00| 29.84|29.913| 2.5| 2.0| 39| 21| NE| 0| 0| | |28| 95.2 | 73.8 | 84.5 | 83.8 | 78| 82| 0| 20|1......8.| 0| 0.00| 0.0| 30.05| 29.97|30.006| 1.0| 0.5|142| 17| NE| 0| 0| | |29| 96.5 | 75.2 | 85.8 | 85.9 | 76| 74| 0| 21|.......8.| 0| 0.00| 0.0| 29.99| 29.89|29.943| 2.0| 0.9|346| 16| NE| 0| 0| | |30| 90.3 | 78.4 | 84.4 | 84.6 | 75| 74| 0| 19|.......8.| 0| 0.00| 0.0| 30.02| 29.90|29.956| 3.7| 3.5| 42| 23| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 85.7 | 71.5 | 78.6 | 77.5 | 72| 85| 0| 14|..3......| 0| 0.11| 0.0| 30.06| 30.00|30.031| 0.4| 0.1|326| 16| NE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2837.0|2190.5|------|------|---|----| 0| 505| Days | 3.96| 0.0| 30.24| 29.71|29.950| 2.3| 0.3|155| 30|WSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-1.27" or 76% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 91.4| 70.6| 81.0 | 80.7 | 72|77.4|----|----|>.01 Inch 8|22.89| 0.0| 17 | 25 |------|----|----|---| 25 | 1+ | | | +3.4 0.0 +1.7 ------+---+----+----+----+------------|-4.59" or 83% 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|1192|Thunder 7|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 1| 0.99| 6 | 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 20 | 0 | 0 | 0 |----|----| Clear 12 Partly Cloudy 18 Cloudy 1 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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:
    FROPA: 9TH, 13TH, 26TH,30TH
STATION RECORDS [July database to 1976]:
6th - RAINFALL 0.99" [previous 0.49" 1981]
15TH - TEMPERATURE Minimum 60 [previous 61 2009]
16TH - TEMPERATURE Minimum 62 [previous 66 in 1981]
22ND - TEMPERATURE Maximum 102 [previous 99 in 1998]
23RD - TEMPERATURE Maximum 102 [previous 100 2010]
(July database to 1976) MONTHLY AVERAGE MAXIMUM TEMP OF 91.4 WAS 3.4 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 70.6 WAS NORMAL. MONTHLY AVERAGE TEMP OF 81.0 WAS 1.7 ABOVE NORMAL. MAXIMUM TEMP: 102 ON THE 22ND and 23RD MINIMUM TEMP: 60 ON THE 15TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 20 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 0.0 COOLING DEGREE DAYS: 496.0 DAYS WITH HEATING DEGREE DAYS: 0 DAYS WITH COOLING DEGREE DAYS: 31 PRECIP TOTAL OF 3.96" WAS 1.27" BELOW NORMAL ( 76% OF NORMAL). GREATEST DAILY RAINFALL: 0.99 ON THE 6TH GREATEST 24-HOUR RAINFALL: 0.99" ON THE 6TH DAYS WITH MEASUREABLE PRECIP: 8 OR 25.81% AVERAGE DAILY PRECIP: 0.13" NORMAL DAILY PRECIP: 0.17" DAYS WITH PRECIP >= 0.01" 8 DAYS WITH PRECIP >= 0.10" 6 DAYS WITH PRECIP >= 0.50" 5 DAYS WITH PRECIP >= 1.00" 0 DAYS WITH THUNDERSTORMS: 7 NUMBER OF THUNDERSTORMS: 8 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2010-2011: 19.0" CLOUDY DAYS: 1 PARTLY CLOUDY DAYS: 18 SUNNY/CLEAR DAYS: 12 DAYS WITH F/GF: 7 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 70.3 WAS 1.8 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 50.4 WAS 0.6 ABOVE NORMAL. YEARLY AVERAGE TEMP OF 60.3 WAS 1.1 ABOVE NORMAL. MAXIMUM TEMP: 102 ON JULY 22ND AND 23RD MINIMUM TEMP: 15 ON JANUARY 23RD DAYS WITH TEMPERATURES: MAXIMUM >= 90: 38 MAXIMUM <= 32: 1 MINIMUM <= 32: 41 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2159.5 COOLING DEGREE DAYS: 1167.0 DAYS WITH HEATING DEGREE DAYS: 118 DAYS WITH COOLING DEGREE DAYS: 94 PRECIP TOTAL OF 22.89" WAS 4.59" BELOW NORMAL ( 83% OF NORMAL ). GREATEST DAILY RAINFALL: 1.98" ON JUNE 11TH GREATEST 24-HOUR RAINFALL: 1.99" ON JUNE 11TH-12TH DAYS WITH MEASUREABLE PRECIP: 77 OF 212 OR 36.32% AVERAGE DAILY PRECIP: 0.11" NORMAL DAILY PRECIP: 0.13" DAYS WITH PRECIP >= 0.01" 77 DAYS WITH PRECIP >= 0.10" 48 DAYS WITH PRECIP >= 0.50" 20 DAYS WITH PRECIP >= 1.00" 4 DAYS WITH THUNDERSTORMS: 26 NUMBER OF THUNDERSTORMS: 29 DAYS WITH SNOW (calendar year 2011): 5 SNOWFALL TOTAL (calendar year 2011): 3.6" SEASONAL SNOW 2010-2011 (beginning December 2010): 19.0" CLOUDY DAYS: 24 PARTLY CLOUDY DAYS: 108 SUNNY/CLEAR DAYS: 80 DAYS WITH F/GF: 41 DAYS WITH DENSE FOG: 02 DAYS WITH FROST: 22
OBSERVATIONS AT 3-HOUR INTERVALS
July 2011: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 1 | JUL 2 | JUL 3 | | | | | |01| |30.00| 0.00| 70| 65| 84|00| 0| 0| |30.06| 0.00| 72| 63| 73|13| 0| 5| |29.99| 0.00| 74| 68| 82|13| 0| 10| |04| |29.99| 0.00| 67| 64| 91|00| 0| 0| |30.04| 0.00| 70| 63| 80|00| 0| 0| |29.97| 0.00| 72| 69| 89|18| 0| 7| |07| |30.02| 0.00| 67| 66| 95|13| 0| 4| |30.08| 0.00| 68| 64| 87|00| 0| 0| |29.97| 0.00| 73| 69| 89|18| 0| 11| |10| |30.02| 0.00| 80| 68| 67|33| 5| 14| |30.07| 0.00| 82| 68| 62|29| 0| 6| |29.96| 0.00| 79| 73| 81|18| 0| 7| |13| |30.00| 0.00| 85| 64| 50|04| 5| 15| |30.06| 0.00| 88| 60| 39|04| 5| 16| |29.94| 0.00| 90| 76| 65|18| 5| 19| |16| |29.99| 0.00| 87| 65| 47|31| 5| 15| |30.02| 0.00| 89| 66| 46|00| 4| 15| |29.90| 0.00| 94| 77| 57|24| 4| 15| |19| |29.99| 0.00| 87| 65| 47|33| 4| 10| |30.00| 0.00| 87| 70| 58|15| 0| 14| |29.87| 0.00| 93| 77| 60|18| 4| 14| |22| |30.05| 0.00| 78| 63| 60|00| 0| 0| |30.01| 0.00| 78| 67| 68|15| 4| 12| |29.89| 0.00| 84| 73| 70|18| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 4 | JUL 5 | JUL 6 | | | | | |01| |29.96| 0.00| 79| 70| 73|18| 6| 24| |29.92| 0.00| 71| 70| 97|13| 0| 10| |29.97| 0.00| 73| 71| 91|18| 0| 7| |04| |29.93| 0.00| 73| 69| 86|15| 0| 6| |29.93| 0.00| 69| 68| 98|18| 0| 6| |29.97| 0.00| 71| 69| 94|18| 0| 7| |07| |29.93| 0.00| 72| 68| 85|18| 0| 11| |29.95| 0.00| 70| 69| 98|24| 0| 4| |30.00| 0.00| 72| 71| 96|18| 0| 14| |10| |29.91| 0.00| 82| 73| 74|18| 5| 17| |29.98| 0.00| 79| 74| 84|00| 4| 11| |30.01| 0.00| 75| 74| 97|24| 0| 10| |13| |29.90| 0.00| 92| 77| 62|24| 5| 18| |29.95| 0.00| 87| 76| 72|24| 4| 10| |29.98| 0.00| 82| 78| 86|18| 0| 10| |16| |29.84| 0.00| 95| 78| 58|15| 4| 15| |29.93| 0.00| 90| 76| 63|18| 4| 16| |29.94| 0.07| 77| 75| 93|15| 0| 10| |19| |29.91| 0.25| 80| 73| 79|04| 4| 25| |29.92| 0.00| 86| 76| 73|04| 4| 15| |29.92| 0.69| 71| 69| 96|18| 4| 22| |22| |29.96| 0.01| 71| 69| 94|24| 5| 18| |29.96| 0.00| 77| 72| 85|15| 0| 12| |30.00| 0.00| 70| 69| 98|18| 4| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 7 | JUL 8 | JUL 9 | | | | | |01| |29.96| 0.00| 69| 68| 98|15| 0| 12| |29.92| 0.00| 73| 72| 94|18| 4| 11| |29.80| 0.00| 78| 74| 88|18| 1| 12| |04| |29.97| 0.00| 68| 67| 98|15| 0| 11| |29.89| 0.00| 71| 70| 96|18| 0| 6| |29.80| 0.18| 72| 71| 97|24| 0| 7| |07| |29.98| 0.00| 69| 69| 99|15| 0| 11| |29.90| 0.00| 75| 74| 98|18| 0| 7| |29.83| 0.02| 72| 71| 98|22| 0| 3| |10| |29.98| 0.00| 79| 74| 86|24| 4| 12| |29.90| 0.00| 82| 77| 87|27| 1| 10| |29.88| 0.00| 75| 73| 93|33| 4| 11| |13| |29.96| 0.00| 87| 79| 75|18| 0| 10| |29.85| 0.00| 89| 79| 72|13| 0| 7| |29.91| 0.00| 82| 73| 74|04| 10| 21| |16| |29.91| 0.00| 90| 76| 63|27| 4| 15| |29.76| 0.00| 91| 82| 74|13| 1| 10| |29.91| 0.00| 85| 72| 66|33| 10| 18| |19| |29.91| 0.00| 82| 75| 79|13| 4| 16| |29.75| 0.00| 86| 78| 76|18| 1| 14| |29.93| 0.00| 84| 72| 67|04| 6| 15| |22| |29.94| 0.00| 75| 72| 89|18| 0| 6| |29.79| 0.00| 79| 74| 86|18| 2| 12| |29.99| 0.00| 76| 71| 85|15| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 10 | JUL 11 | JUL 12 | | | | | |01| |30.02| 0.00| 71| 69| 93|00| 0| 0| |30.05| 0.00| 71| 69| 93|15| 0| 7| |29.82| 0.00| 77| 73| 86|18| 5| 16| |04| |30.00| 0.00| 69| 68| 96|00| 0| 0| |30.03| 0.00| 70| 69| 97|20| 0| 7| |29.85| 0.00| 75| 69| 80|18| 4| 13| |07| |30.03| 0.00| 69| 69| 98|00| 0| 0| |30.07| 0.00| 71| 71| 98|18| 0| 6| |29.84| 0.00| 75| 71| 86|18| 3| 14| |10| |30.06| 0.00| 83| 72| 71|04| 0| 7| |30.07| 0.00| 81| 76| 86|18| 0| 11| |29.85| 0.00| 86| 78| 78|24| 4| 12| |13| |30.06| 0.00| 89| 72| 57|04| 4| 14| |30.01| 0.00| 90| 76| 65|20| 4| 11| |29.84| 0.00| 89| 77| 69|24| 4| 11| |16| |30.03| 0.00| 89| 72| 58|15| 0| 10| |29.96| 0.00| 93| 79| 63|13| 4| 15| |29.79| 0.00| 95| 80| 61|22| 4| 12| |19| |30.02| 0.00| 85| 70| 61|15| 0| 11| |29.93| 0.00| 89| 76| 66|13| 4| 16| |29.77| 0.00| 94| 79| 62|24| 4| 12| |22| |30.05| 0.00| 76| 71| 85|15| 0| 7| |29.93| 0.00| 80| 74| 82|15| 0| 12| |29.80| 0.00| 86| 77| 76|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 13 | JUL 14 | JUL 15 | | | | | |01| |29.78| 0.00| 82| 77| 86|18| 0| 4| |29.84| 0.00| 76| 72| 87|04| 4| 14| |30.07| 0.00| 67| 61| 79|04| 0| 7| |04| |29.78| 0.00| 80| 76| 87|13| 0| 6| |29.87| 0.00| 75| 72| 92|33| 4| 17| |30.05| 0.00| 64| 58| 80|02| 0| 5| |07| |29.81| 0.00| 78| 76| 93|04| 0| 5| |29.91| 0.00| 74| 64| 72|04| 10| 20| |30.07| 0.00| 60| 58| 92|00| 0| 0| |10| |29.82| 0.00| 89| 75| 64|33| 5| 15| |29.98| 0.00| 77| 64| 65|04| 11| 22| |30.10| 0.00| 74| 60| 61|15| 1| 7| |13| |29.82| 0.00| 93| 75| 56|33| 4| 12| |30.00| 0.00| 78| 62| 59|04| 11| 23| |30.11| 0.00| 82| 63| 52|13| 1| 10| |16| |29.78| 0.00| 93| 77| 59|24| 5| 19| |30.01| 0.00| 78| 64| 61|04| 10| 21| |30.08| 0.00| 83| 66| 55|15| 2| 11| |19| |29.77| 0.00| 88| 75| 65|33| 4| 14| |30.00| 0.00| 75| 64| 67|04| 10| 24| |30.08| 0.00| 81| 66| 61|15| 1| 10| |22| |29.84| 0.00| 75| 71| 89|04| 5| 21| |30.04| 0.00| 70| 62| 76|04| 5| 17| |30.12| 0.00| 72| 64| 75|15| 0| 3| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 16 | JUL 17 | JUL 18 | | | | | |01| |30.14| 0.00| 68| 63| 85|15| 0| 1| |30.20| 0.00| 70| 65| 84|15| 0| 5| |30.16| 0.00| 70| 64| 82|13| 0| 7| |04| |30.14| 0.00| 65| 62| 91|00| 0| 0| |30.19| 0.00| 69| 65| 88|15| 0| 6| |30.11| 0.00| 68| 64| 89|18| 0| 7| |07| |30.16| 0.00| 64| 62| 95|00| 0| 0| |30.21| 0.00| 69| 66| 93|00| 0| 0| |30.14| 0.00| 68| 66| 93|18| 0| 5| |10| |30.19| 0.00| 79| 68| 68|15| 0| 11| |30.24| 0.00| 81| 68| 64|18| 4| 11| |30.10| 0.00| 81| 69| 66|18| 4| 14| |13| |30.19| 0.00| 82| 67| 60|15| 0| 14| |30.21| 0.00| 86| 66| 52|20| 4| 11| |30.06| 0.00| 88| 71| 57|24| 4| 12| |16| |30.17| 0.00| 86| 66| 51|15| 4| 18| |30.17| 0.00| 86| 69| 56|04| 4| 15| |29.98| 0.00| 91| 72| 53|20| 4| 12| |19| |30.17| 0.00| 82| 64| 54|15| 4| 17| |30.15| 0.00| 83| 66| 56|15| 0| 10| |29.93| 0.00| 89| 72| 57|18| 4| 11| |22| |30.20| 0.00| 73| 64| 75|18| 0| 7| |30.16| 0.00| 74| 64| 72|15| 0| 11| |29.96| 0.00| 77| 69| 75|13| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.07 | 0.14 | 0.21 | 0.28 | 0.42 | 0.63 | 0.84 | 0.88 | 0.92 | 0.97 | 0.97 | 0.97 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 2004 | 2009 | 2014 | 2019 | 2029 | 2044 | 2100 | 2118 | 2136 | 2200 | 2200 | 2200 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
July 2011: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 19 | JUL 20 | JUL 21 | | | | | |01| |29.95| 0.00| 72| 66| 80|18| 4| 15| |29.83| 0.00| 80| 74| 84|15| 0| 7| |29.88| 0.00| 78| 75| 92|13| 0| 10| |04| |29.89| 0.00| 69| 64| 83|18| 0| 11| |29.82| 0.00| 76| 71| 85|15| 0| 7| |29.85| 0.00| 77| 75| 95|13| 0| 5| |07| |29.90| 0.00| 70| 64| 83|18| 4| 12| |29.85| 0.00| 74| 71| 90|18| 0| 6| |29.88| 0.00| 76| 76| 97|13| 0| 5| |10| |29.88| 0.00| 82| 72| 72|18| 4| 14| |29.86| 0.00| 85| 76| 75|24| 4| 10| |29.88| 0.00| 85| 80| 86|15| 0| 6| |13| |29.86| 0.00| 90| 77| 64|18| 4| 14| |29.86| 0.00| 90| 79| 70|33| 4| 11| |29.86| 0.00| 95| 83| 68|20| 4| 12| |16| |29.79| 0.00| 95| 75| 52|20| 4| 16| |29.83| 0.00| 85| 74| 69|13| 5| 17| |29.82| 0.00| 97| 83| 63|13| 4| 14| |19| |29.80| 0.00| 91| 76| 63|33| 4| 11| |29.84| 0.00| 88| 76| 67|13| 0| 10| |29.82| 0.00| 95| 82| 67|18| 4| 13| |22| |29.81| 0.00| 83| 75| 77|00| 0| 0| |29.88| 0.00| 82| 76| 84|13| 0| 13| |29.86| 0.00| 86| 78| 78|18| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 22 | JUL 23 | JUL 24 | | | | | |01| |29.86| 0.00| 82| 76| 83|18| 0| 10| |29.96| 0.00| 83| 75| 76|18| 4| 13| |29.97| 0.00| 74| 73| 98|18| 0| 6| |04| |29.89| 0.00| 79| 74| 85|18| 0| 11| |29.94| 0.00| 80| 75| 85|18| 4| 14| |29.96| 0.00| 73| 72| 98|15| 0| 7| |07| |29.93| 0.00| 78| 75| 90|15| 0| 6| |29.99| 0.00| 79| 76| 90|18| 0| 6| |29.96| 0.00| 73| 73| 98|18| 0| 7| |10| |29.94| 0.00| 89| 81| 76|18| 4| 11| |30.00| 0.00| 88| 79| 75|27| 4| 12| |29.96| 0.00| 83| 79| 88|15| 4| 10| |13| |29.93| 0.00| 99| 83| 61|18| 4| 16| |29.98| 0.00| 98| 83| 63|20| 5| 16| |29.94| 0.00| 91| 80| 71|24| 4| 14| |16| |29.89| 0.00|102| 84| 56|18| 4| 17| |29.94| 0.00| 99| 80| 56|20| 5| 18| |29.88| 0.00| 93| 80| 66|24| 4| 11| |19| |29.89| 0.00| 98| 83| 63|13| 4| 14| |29.92| 0.00| 92| 79| 67|15| 0| 11| |29.90| 0.00| 88| 76| 67|00| 5| 16| |22| |29.93| 0.00| 89| 80| 75|18| 4| 12| |29.96| 0.13| 75| 74| 97|18| 4| 17| |29.96| 0.00| 76| 74| 93|18| 5| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 25 | JUL 26 | JUL 27 | | | | | |01| |29.89| 0.01| 74| 72| 94|00| 0| 0| |29.73| 0.00| 72| 71| 98|24| 0| 11| |29.84| 0.00| 75| 74| 95|18| 4| 14| |04| |29.89| 0.00| 73| 72| 97|20| 0| 7| |29.76| 0.00| 73| 72| 99|18| 0| 7| |29.85| 0.00| 73| 72| 97|15| 0| 7| |07| |29.89| 0.00| 74| 73| 98|18| 0| 10| |29.77| 0.00| 73| 73| 99|29| 0| 7| |29.89| 0.00| 73| 72| 98|18| 0| 7| |10| |29.87| 0.00| 81| 77| 89|18| 0| 10| |29.81| 0.00| 78| 76| 93|31| 4| 10| |29.93| 0.00| 82| 76| 82|33| 6| 17| |13| |29.83| 0.00| 89| 81| 76|20| 4| 11| |29.82| 0.00| 86| 76| 72|00| 5| 14| |29.94| 0.00| 87| 70| 56|06| 5| 17| |16| |29.75| 0.00| 93| 82| 69|18| 4| 12| |29.78| 0.00| 87| 76| 69|33| 4| 11| |29.92| 0.00| 89| 71| 56|04| 6| 19| |19| |29.72| 0.00| 89| 80| 74|15| 4| 14| |29.76| 0.00| 88| 79| 75|20| 4| 13| |29.93| 0.00| 87| 70| 57|04| 0| 10| |22| |29.81| 0.40| 73| 72| 97|00| 5| 20| |29.82| 0.00| 79| 75| 87|18| 4| 15| |29.98| 0.00| 78| 68| 70|13| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 28 | JUL 29 | JUL 30 | | | | | |01| |30.00| 0.00| 75| 70| 84|13| 0| 4| |29.99| 0.00| 80| 78| 92|13| 0| 4| |29.91| 0.00| 81| 76| 86|15| 0| 4| |04| |29.99| 0.00| 74| 72| 93|13| 0| 5| |29.94| 0.00| 78| 75| 93|18| 0| 6| |29.90| 0.00| 79| 75| 90|27| 0| 6| |07| |30.02| 0.00| 75| 74| 97|00| 0| 0| |29.97| 0.00| 76| 74| 94|18| 0| 5| |29.94| 0.00| 79| 75| 87|00| 0| 4| |10| |30.04| 0.00| 86| 79| 81|15| 0| 10| |29.97| 0.00| 85| 77| 77|24| 4| 14| |29.99| 0.00| 87| 78| 76|04| 11| 20| |13| |30.02| 0.00| 92| 81| 69|13| 4| 12| |29.97| 0.00| 93| 75| 56|06| 5| 15| |29.99| 0.00| 89| 78| 71|04| 6| 17| |16| |29.98| 0.00| 95| 81| 65|20| 4| 11| |29.93| 0.00| 96| 74| 50|04| 5| 14| |29.96| 0.00| 89| 74| 60|04| 6| 17| |19| |29.99| 0.00| 89| 81| 78|15| 0| 12| |29.89| 0.00| 95| 78| 59|33| 0| 7| |29.94| 0.00| 88| 74| 62|04| 5| 17| |22| |30.01| 0.00| 83| 79| 89|15| 0| 7| |29.91| 0.00| 85| 76| 73|15| 0| 4| |30.00| 0.00| 81| 72| 73|00| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | JUL 31 | | | | | | | |01| |30.00| 0.00| 78| 73| 83|00| 0| 5| | | |04| |30.00| 0.00| 76| 70| 82|24| 0| 4| | | |07| |30.03| 0.00| 76| 72| 88|00| 0| 0| | | |10| |30.06| 0.00| 84| 74| 72|15| 0| 6| | | |13| |30.06| 0.00| 84| 76| 79|24| 0| 11| | | |16| |30.02| 0.02| 75| 72| 92|04| 0| 4| | | |19| |30.03| 0.00| 76| 73| 92|13| 0| 10| | | |22| |30.03| 0.00| 72| 70| 92|00| 0| 0| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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| |29.954| 75| 71| 87| 1.0| 17 | 0.8| |04| |29.946| 73| 70| 90| 0.4| 20 | 0.1| |07| |29.968| 72| 70| 92| 0.5| 09 | 0.2| |10| |29.983| 82| 74| 77| 2.9| 31 | 0.5| |13| |29.970| 88| 75| 65| 3.8| 08 | 0.3| |16| |29.931| 89| 74| 63| 3.9| 17 | 0.4| |19| |29.925| 86| 74| 68| 2.8| 10 | 0.7| |22| |29.961| 77| 71| 82| 1.4| 17 | 0.5| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
July 2011: 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| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | |0.01| | | |0.01| | | | | | | | | | | | |0.25|0.06|0.19|0.01|0.01|04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | |0.14| |0.01|0.03| | |0.04|0.07| |0.01|0.69| | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | |0.23|0.18|0.07|0.13|0.02|0.01| | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | |0.83|0.13|0.01|23 24| | | | | | |0.01| | | | | | | | | | | | | | |0.01| |0.01|24 25| |0.01| | | | | | | | | | | | | | | | | | |0.06|0.04|0.40|0.16|25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | |0.01| | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | |0.02| |0.02|0.03|0.04| | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.01|0.02|0.23|0.18|0.07|0.15|0.02|0.01|0.14|0.00|0.01|0.03|0.00|0.02|0.04|0.09|0.03|0.05|0.94|0.12|1.07|0.54|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.)