LOCAL CLIMATOLOGICAL DATA Monthly Summary
October 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| 64.5 | 50.1 | 57.3 | 58.3 | 52| 81| 7| 0|.........| 0| 0.04| 0.0| 29.85| 29.67|29.765| 4.1| 3.2| 9| 22| N| 0| 0| | |02| 58.3 | 44.5 | 51.4 | 51.8 | 45| 79| 13| 0|.........| 0| 0.01| 0.0| 30.02| 29.84|29.912| 2.8| 2.4|284| 22| W| 0| 0| | |03| 59.9 | 47.2 | 53.6 | 52.4 | 46| 80| 11| 0|.........| 0| T | 0.0| 30.13| 29.99|30.051| 1.8| 1.7|265| 22| W| 0| 0| | |04| 67.9 | 47.0 | 57.5 | 57.3 | 50| 77| 7| 0|.........| 0| 0.00| 0.0| 30.17| 30.09|30.131| 3.3| 3.0| 16| 23|NNE| 0| 0| | |05| 72.4 | 51.9 | 62.2 | 61.8 | 54| 76| 3| 0|.........| 0| 0.00| 0.0| 30.22| 30.13|30.175| 3.0| 2.9| 24| 20| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 68.4 | 51.6 | 60.0 | 61.8 | 52| 73| 5| 0|.........| 0| 0.00| 0.0| 30.37| 30.23|30.310| 3.7| 3.7| 90| 22| E| 0| 0| | |07| 68.6 | 45.8 | 57.2 | 57.2 | 50| 78| 7| 0|.........| 0| 0.00| 0.0| 30.46| 30.36|30.412| 1.9| 1.9| 90| 16| E| 0| 0| | |08| 69.9 | 49.9 | 59.9 | 60.2 | 54| 81| 5| 0|.........| 0| 0.00| 0.0| 30.50| 30.44|30.463| 2.5| 2.5| 90| 21| E| 0| 0| | |09| 72.7 | 51.7 | 62.2 | 62.0 | 54| 77| 2| 0|.........| 0| 0.00| 0.0| 30.46| 30.31|30.391| 2.3| 2.3| 90| 16| E| 0| 0| | |10| 76.4 | 53.9 | 65.2 | 65.1 | 59| 81| 0| 0|1........| 0| 0.00| 0.0| 30.30| 30.11|30.212| 2.1| 2.1| 88| 15| E| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 72.2 | 64.5 | 68.3 | 68.6 | 65| 88| 0| 4|.........| 0| T | 0.0| 30.10| 29.97|30.047| 4.1| 4.1| 87| 17| E| 0| 0| | |12| 71.9 | 68.1 | 70.0 | 69.5 | 67| 91| 0| 5|1........| 0| 0.03| 0.0| 29.96| 29.79|29.874| 0.7| 0.7| 90| 18| E| 0| 0| | |13| 79.4 | 67.0 | 73.2*| 70.8 | 68| 93| 0| 8|1.3......| 0| 0.31| 0.0| 29.79| 29.61|29.699| 0.5| 0.5|180| 14| S| 0| 0| | |14| 73.7 | 54.9 | 64.3 | 66.2 | 59| 79| 0| 0|.........| 0| 0.00| 0.0| 29.80| 29.53|29.608| 3.5| 3.1|261| 27| W| 0| 0| | |15| 72.4 | 50.0 | 61.2 | 60.0 | 47| 65| 4| 0|.........| 0| 0.00| 0.0| 29.98| 29.81|29.865| 2.5| 2.4|267| 27| W| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 71.3 | 45.7 | 58.5 | 58.6 | 47| 67| 6| 0|.........| 0| 0.00| 0.0| 30.11| 29.88|30.001| 2.3| 2.0|242| 17| SW| 0| 0| | |17| 80.8*| 59.0 | 69.9 | 67.6 | 56| 68| 0| 5|.........| 0| 0.00| 0.0| 29.88| 29.79|29.842| 4.0| 3.7|232| 21|WNW| 0| 0| | |18| 80.6 | 60.1 | 70.3 | 69.5 | 62| 77| 0| 6|.........| 0| 0.01| 0.0| 29.88| 29.74|29.815| 2.0| 2.0|218| 18| SW| 0| 0| | |19| 76.5 | 67.2 | 71.8 | 71.3 | 69| 93| 0| 7|1........| 0| 0.70| 0.0| 29.68| 29.30|29.434| 2.9| 2.0|169| 23|SSW| 0| 0| | |20| 70.6 | 49.4 | 60.0 | 56.8 | 48| 74| 5| 0|.........| 0| 0.00| 0.0| 29.89| 29.40|29.672| 7.5| 7.5|224| 32| SW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 64.4 | 44.7 | 54.6 | 53.8 | 46| 77| 10| 0|.........| 0| 0.00| 0.0| 30.09| 29.92|30.009| 2.0| 1.9|267| 19| W| 0| 0| | |22| 62.6 | 49.1 | 55.8 | 56.5 | 49| 75| 9| 0|.........| 0| 0.00| 0.0| 30.14| 30.08|30.105| 2.8| 2.4| 72| 17| E| 0| 0| | |23| 63.0 | 44.2 | 53.6 | 53.6 | 46| 78| 11| 0|.........| 0| 0.00| 0.0| 30.16| 30.10|30.124| 1.9| 1.9| 87| 18| E| 0| 0| | |24| 65.3 | 45.3 | 55.3 | 54.9 | 49| 80| 10| 0|.........| 0| 0.00| 0.0| 30.13| 30.00|30.065| 1.9| 1.7| 71| 17| E| 0| 0| | |25| 66.0 | 49.1 | 57.5 | 57.6 | 47| 69| 7| 0|.........| 0| 0.00| 0.0| 30.23| 30.05|30.150| 2.2| 2.1| 31| 19| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 73.2 | 47.2 | 60.2 | 58.9 | 51| 76| 5| 0|.........| 0| 0.00| 0.0| 30.14| 29.86|29.992| 3.0| 3.0|224| 24| SW| 0| 0| | |27| 76.3 | 56.6 | 66.4 | 65.2 | 55| 71| 0| 2|.........| 0| T | 0.0| 29.93| 29.66|29.768| 5.7| 5.7|224| 27| SW| 0| 0| | |28| 59.6 | 47.4 | 53.5 | 50.5 | 44| 79| 11| 0|.........| 0| 0.05| 0.0| 30.19| 29.97|30.108| 8.7| 8.0| 74| 31| NE| 0| 0| | |29| 60.5 | 41.1 | 50.8 | 49.8 | 46| 89| 14| 0|.........| 0| 0.55| 0.0| 30.04| 29.75|29.880| 7.8| 3.9|341| 32| W| 0| 0| | |30| 51.8 | 38.3 | 45.0*| 43.7 | 34| 71| 20| 0|.........| 0| 0.00| 0.0| 30.37| 30.07|30.255| 5.4| 5.1| 28| 23|NNE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 60.7 | 36.0*| 48.3 | 48.7 | 42| 79| 16| 0|.........| 0| 0.48| 0.0| 30.37| 30.18|30.284| 2.1| 1.0| 78| 22| NE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2131.8|1578.5|------|------|---|----| 188| 37| Days | 2.18| 0.0| 30.50| 29.30|30.014| 3.3| 0.3| 45| 32| SW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-1.44" or 60% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 68.8| 50.9| 59.9 | 59.3 | 52|78.0|----|----|>.01 Inch 9|46.95| 0.0| 8 | 19 |------|----|----|---| 20+ | 1+ | | + -1.8 -1.7 -1.7 +------+---+----+----+----+------------|+4.91" or 112% 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 | 198|1910|Thunder 1|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 0.71| 18-19| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 16 Partly Cloudy 10 Cloudy 5 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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:
    FROST: 31st (Growing season ends)

FRONTAL PASSAGES:
14th - COLDFROPA; 20th - COLDFROPA; 25th COLDFROPA, 27th COLDFROPA, 29th COLDFROPA

STATION RECORDS:
2nd - TEMPERATURE Minimum Maximum 58 [previous 60 1984]
3rd - TEMPERATURE Minimum Maximum 60 [previous 64 1981] MONTHLY AVERAGE MAXIMUM TEMP OF 68.8 WAS 1.8 BELOW NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 50.9 WAS 1.7 BELOW NORMAL. MONTHLY AVERAGE TEMP OF 59.9 WAS 1.7 BELOW NORMAL. MAXIMUM TEMP: 81 ON THE 17TH AND 18TH MINIMUM TEMP: 36 ON THE 31ST DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 0 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 194.5 COOLING DEGREE DAYS: 35.0 DAYS WITH HEATING DEGREE DAYS: 23 DAYS WITH COOLING DEGREE DAYS: 7 PRECIP TOTAL OF 2.18" WAS 1.44" BELOW NORMAL ( 60% OF NORMAL). GREATEST DAILY RAINFALL: 0.70 ON THE 19TH GREATEST 24-HOUR RAINFALL: 0.71" ON THE 18TH AND 19TH DAYS WITH MEASUREABLE PRECIP: 9 OR 29.03% AVERAGE DAILY PRECIP: 0.07" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 9 DAYS WITH PRECIP >= 0.10" 4 DAYS WITH PRECIP >= 0.50" 2 DAYS WITH PRECIP >= 1.00" 0 DAYS WITH THUNDERSTORMS: 1 NUMBER OF THUNDERSTORMS: 1 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2010-2011: 19.0" CLOUDY DAYS: 5 PARTLY CLOUDY DAYS: 10 SUNNY/CLEAR DAYS: 16 DAYS WITH F/GF: 4 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 1 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 72.8 WAS 1.0 ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 53.9 WAS 0.3 ABOVE NORMAL. YEARLY AVERAGE TEMP OF 63.4 WAS 0.7 ABOVE NORMAL. MAXIMUM TEMP: 102 ON JULY 22ND AND 23RD MINIMUM TEMP: 15 ON JANUARY 23RD DAYS WITH TEMPERATURES: MAXIMUM >= 90: 48 MAXIMUM <= 32: 1 MINIMUM <= 32: 41 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 2364.5 COOLING DEGREE DAYS: 1863.5 DAYS WITH HEATING DEGREE DAYS: 144 DAYS WITH COOLING DEGREE DAYS: 159 PRECIP TOTAL OF 46.95" WAS 4.96" ABOVE NORMAL (112% OF NORMAL). GREATEST DAILY RAINFALL: 7.82" ON AUGUST 27TH GREATEST 24-HOUR RAINFALL: 7.82" ON AUGUST 27TH DAYS WITH MEASUREABLE PRECIP: 113 OF 304 OR 37.17% AVERAGE DAILY PRECIP: 0.15" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 113 DAYS WITH PRECIP >= 0.10" 66 DAYS WITH PRECIP >= 0.50" 29 DAYS WITH PRECIP >= 1.00" 10 DAYS WITH THUNDERSTORMS: 38 NUMBER OF THUNDERSTORMS: 42 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: 37 PARTLY CLOUDY DAYS: 153 SUNNY/CLEAR DAYS: 114 DAYS WITH F/GF: 58 DAYS WITH DENSE FOG: 02 DAYS WITH FROST: 23
OBSERVATIONS AT 3-HOUR INTERVALS
October 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 1 | OCT 2 | OCT 3 | | | | | |01| |29.67| 0.00| 59| 57| 92|02| 4| 15| |29.84| 0.00| 49| 46| 89|27| 0| 6| |30.01| 0.00| 49| 45| 87|24| 0| 4| |04| |29.67| 0.00| 57| 55| 93|29| 0| 11| |29.85| 0.00| 46| 43| 90|29| 0| 11| |29.99| 0.00| 48| 44| 86|22| 0| 4| |07| |29.73| 0.00| 56| 53| 89|02| 0| 12| |29.88| 0.01| 45| 42| 92|29| 0| 11| |30.02| 0.00| 48| 44| 86|20| 0| 7| |10| |29.77| 0.00| 59| 50| 74|02| 10| 19| |29.90| 0.00| 52| 46| 78|29| 6| 21| |30.05| 0.00| 51| 48| 90|18| 0| 5| |13| |29.79| 0.00| 61| 52| 71|02| 5| 19| |29.91| 0.00| 57| 47| 71|27| 6| 21| |30.05| 0.00| 59| 49| 69|27| 6| 16| |16| |29.78| 0.00| 64| 49| 59|27| 5| 18| |29.92| 0.00| 58| 46| 66|27| 6| 17| |30.04| 0.00| 59| 47| 65|27| 6| 17| |19| |29.82| 0.03| 56| 52| 85|27| 4| 18| |29.97| 0.00| 55| 47| 74|27| 0| 7| |30.09| 0.00| 55| 46| 72|27| 4| 15| |22| |29.85| 0.00| 52| 49| 91|00| 0| 0| |30.02| 0.00| 53| 47| 80|24| 0| 7| |30.13| 0.00| 51| 47| 87|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 4 | OCT 5 | OCT 6 | | | | | |01| |30.11| 0.00| 52| 49| 89|00| 0| 0| |30.16| 0.00| 55| 51| 88|31| 0| 4| |30.23| 0.00| 56| 53| 89|00| 0| 0| |04| |30.09| 0.00| 49| 46| 89|00| 0| 0| |30.17| 0.00| 52| 50| 91|31| 0| 6| |30.24| 0.00| 62| 54| 74|09| 3| 16| |07| |30.12| 0.00| 47| 45| 91|27| 0| 7| |30.19| 0.00| 56| 53| 89|02| 4| 14| |30.28| 0.00| 56| 52| 89|09| 0| 4| |10| |30.16| 0.00| 56| 50| 78|02| 5| 17| |30.21| 0.00| 63| 55| 75|04| 10| 20| |30.33| 0.00| 67| 58| 73|09| 10| 21| |13| |30.14| 0.00| 64| 52| 67|02| 7| 23| |30.18| 0.00| 69| 54| 60|00| 6| 17| |30.35| 0.00| 68| 52| 57|09| 7| 20| |16| |30.11| 0.00| 68| 54| 60|02| 7| 20| |30.13| 0.00| 72| 55| 54|02| 7| 18| |30.33| 0.00| 68| 50| 53|09| 6| 17| |19| |30.14| 0.00| 64| 53| 66|33| 4| 14| |30.15| 0.00| 68| 56| 65|00| 0| 7| |30.34| 0.00| 63| 51| 66|09| 4| 7| |22| |30.16| 0.00| 59| 52| 78|31| 0| 6| |30.19| 0.00| 59| 54| 84|00| 0| 0| |30.36| 0.00| 56| 49| 79|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 7 | OCT 8 | OCT 9 | | | | | |01| |30.36| 0.00| 51| 47| 87|00| 0| 0| |30.45| 0.00| 53| 50| 89|00| 0| 0| |30.44| 0.00| 56| 53| 90|00| 0| 0| |04| |30.36| 0.00| 48| 45| 90|00| 0| 0| |30.44| 0.00| 51| 48| 91|00| 0| 0| |30.41| 0.00| 53| 51| 91|00| 0| 0| |07| |30.39| 0.00| 46| 43| 90|00| 0| 0| |30.47| 0.00| 50| 48| 92|00| 0| 0| |30.42| 0.00| 52| 50| 92|00| 0| 0| |10| |30.44| 0.00| 60| 55| 83|09| 4| 12| |30.49| 0.00| 65| 58| 77|09| 6| 19| |30.46| 0.00| 65| 60| 84|09| 6| 14| |13| |30.43| 0.00| 66| 50| 57|09| 5| 15| |30.48| 0.00| 69| 59| 70|09| 6| 18| |30.41| 0.00| 71| 59| 65|09| 6| 16| |16| |30.41| 0.00| 68| 54| 60|09| 6| 15| |30.45| 0.00| 70| 59| 68|09| 6| 17| |30.35| 0.00| 73| 56| 56|09| 5| 12| |19| |30.42| 0.00| 63| 53| 70|06| 0| 7| |30.45| 0.00| 64| 56| 74|09| 0| 7| |30.34| 0.00| 66| 51| 59|09| 0| 10| |22| |30.46| 0.00| 56| 51| 84|00| 0| 0| |30.47| 0.00| 59| 55| 86|00| 0| 0| |30.32| 0.00| 59| 55| 84|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 10 | OCT 11 | OCT 12 | | | | | |01| |30.30| 0.00| 57| 54| 89|00| 0| 0| |30.10| 0.00| 65| 62| 90|06| 4| 7| |29.96| 0.00| 70| 67| 91|09| 4| 11| |04| |30.26| 0.00| 55| 52| 91|00| 0| 0| |30.07| 0.00| 66| 64| 91|09| 4| 7| |29.93| 0.00| 69| 67| 92|06| 0| 4| |07| |30.25| 0.00| 54| 52| 92|09| 0| 5| |30.07| 0.00| 67| 65| 92|09| 5| 12| |29.92| 0.00| 68| 65| 88|18| 0| 7| |10| |30.27| 0.00| 67| 63| 87|09| 4| 11| |30.09| 0.00| 68| 63| 84|09| 4| 10| |29.92| 0.00| 69| 66| 90|09| 4| 18| |13| |30.22| 0.00| 76| 63| 64|09| 5| 15| |30.06| 0.00| 70| 66| 88|09| 4| 13| |29.86| 0.01| 69| 67| 93|09| 0| 12| |16| |30.17| 0.00| 76| 64| 67|09| 4| 11| |30.02| 0.00| 72| 65| 78|09| 5| 14| |29.83| 0.00| 72| 68| 88|18| 0| 12| |19| |30.14| 0.00| 70| 63| 79|09| 5| 11| |29.99| 0.00| 70| 66| 87|09| 4| 12| |29.80| 0.00| 70| 67| 91|20| 0| 10| |22| |30.13| 0.00| 66| 62| 85|09| 0| 4| |29.97| 0.00| 70| 67| 90|06| 4| 11| |29.81| 0.00| 69| 66| 93|11| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 13 | OCT 14 | OCT 15 | | | | | |01| |29.79| 0.00| 68| 67| 94|20| 0| 4| |29.62| 0.00| 67| 66| 96|20| 0| 11| |29.81| 0.00| 54| 48| 81|22| 0| 6| |04| |29.75| 0.00| 68| 67| 95|15| 0| 6| |29.58| 0.00| 64| 62| 95|20| 0| 5| |29.83| 0.00| 53| 48| 83|20| 0| 7| |07| |29.75| 0.00| 68| 67| 96|20| 0| 7| |29.57| 0.00| 64| 63| 96|20| 0| 7| |29.86| 0.00| 50| 46| 85|20| 0| 6| |10| |29.74| 0.00| 71| 70| 95|22| 0| 10| |29.56| 0.00| 66| 64| 94|22| 5| 15| |29.88| 0.00| 60| 50| 69|29| 4| 12| |13| |29.71| 0.00| 78| 73| 85|18| 4| 14| |29.55| 0.00| 71| 63| 77|22| 7| 23| |29.86| 0.00| 71| 49| 47|27| 7| 27| |16| |29.65| 0.20| 72| 69| 90|18| 4| 14| |29.56| 0.00| 72| 55| 55|27| 10| 27| |29.84| 0.00| 72| 46| 40|27| 7| 23| |19| |29.61| 0.00| 70| 69| 94|18| 0| 10| |29.66| 0.00| 67| 48| 52|29| 6| 22| |29.88| 0.00| 63| 46| 53|20| 0| 17| |22| |29.63| 0.00| 67| 66| 95|18| 0| 10| |29.77| 0.00| 58| 49| 72|22| 0| 6| |29.94| 0.00| 56| 45| 66|20| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 16 | OCT 17 | OCT 18 | | | | | |01| |29.99| 0.00| 54| 44| 71|15| 0| 10| |29.87| 0.00| 59| 50| 72|22| 5| 16| |29.83| 0.00| 64| 57| 78|22| 0| 10| |04| |30.00| 0.00| 49| 44| 84|29| 0| 5| |29.86| 0.00| 60| 51| 73|22| 5| 16| |29.83| 0.00| 62| 58| 88|22| 0| 7| |07| |30.06| 0.00| 46| 42| 85|20| 0| 5| |29.86| 0.00| 60| 52| 74|22| 5| 19| |29.84| 0.00| 60| 57| 89|20| 0| 7| |10| |30.11| 0.00| 55| 46| 70|29| 0| 10| |29.88| 0.00| 65| 56| 72|22| 6| 16| |29.87| 0.00| 67| 62| 84|22| 4| 15| |13| |30.03| 0.00| 67| 50| 54|22| 4| 12| |29.84| 0.00| 77| 59| 54|27| 6| 19| |29.82| 0.00| 78| 65| 65|22| 4| 16| |16| |29.97| 0.00| 71| 52| 50|22| 5| 15| |29.79| 0.00| 80| 63| 56|20| 5| 17| |29.77| 0.00| 81| 63| 56|22| 5| 14| |19| |29.93| 0.00| 65| 51| 62|22| 0| 7| |29.82| 0.00| 73| 60| 64|20| 0| 6| |29.80| 0.00| 73| 62| 68|18| 0| 6| |22| |29.92| 0.00| 61| 50| 66|22| 4| 15| |29.84| 0.00| 66| 58| 75|22| 0| 5| |29.79| 0.00| 71| 66| 83|18| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.03 | 0.06 | 0.09 | 0.12 | 0.18 | 0.27 | 0.36 | 0.38 | 0.40 | 0.43 | 0.51 | 0.59 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 19 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 19 | 19 | 19 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0305 | 0808 | 0813 | 0818 | 0828 | 0844 | 0900 | 0920 | 0940 | 0400 | 0400 | 0400 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
October 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 19 | OCT 20 | OCT 21 | | | | | |01| |29.68| 0.01| 69| 67| 91|18| 4| 7| |29.40| 0.00| 67| 62| 84|22| 4| 27| |29.92| 0.00| 49| 44| 83|20| 4| 11| |04| |29.54| 0.24| 67| 66| 95|09| 4| 18| |29.49| 0.00| 56| 50| 81|22| 7| 25| |29.95| 0.00| 47| 43| 88|20| 0| 6| |07| |29.49| 0.01| 68| 67| 96|18| 0| 7| |29.62| 0.00| 51| 46| 82|22| 10| 28| |30.00| 0.00| 45| 42| 90|20| 0| 5| |10| |29.48| 0.00| 70| 69| 96|20| 0| 11| |29.69| 0.00| 53| 46| 78|22| 10| 23| |30.03| 0.00| 53| 46| 78|27| 4| 12| |13| |29.40| 0.00| 76| 73| 91|18| 4| 15| |29.68| 0.00| 60| 48| 65|22| 11| 25| |30.02| 0.00| 61| 47| 61|27| 5| 16| |16| |29.31| 0.00| 75| 72| 89|18| 4| 18| |29.71| 0.00| 62| 48| 60|22| 11| 27| |30.00| 0.00| 64| 50| 59|27| 4| 15| |19| |29.30| 0.00| 74| 72| 93|18| 4| 12| |29.81| 0.00| 56| 46| 69|22| 4| 14| |30.04| 0.00| 59| 50| 71|27| 0| 5| |22| |29.35| 0.00| 73| 70| 92|20| 5| 23| |29.88| 0.00| 51| 45| 80|20| 4| 11| |30.08| 0.00| 53| 48| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 22 | OCT 23 | OCT 24 | | | | | |01| |30.09| 0.00| 52| 50| 91|00| 0| 0| |30.10| 0.00| 48| 45| 89|00| 0| 0| |30.13| 0.00| 49| 46| 89|00| 0| 0| |04| |30.08| 0.00| 55| 49| 80|09| 0| 10| |30.10| 0.00| 46| 43| 91|00| 0| 0| |30.09| 0.00| 47| 44| 90|00| 0| 0| |07| |30.11| 0.00| 55| 48| 76|09| 5| 14| |30.12| 0.00| 45| 42| 91|00| 0| 0| |30.09| 0.00| 46| 43| 91|00| 0| 0| |10| |30.14| 0.00| 58| 48| 70|09| 6| 17| |30.16| 0.00| 57| 48| 72|06| 5| 14| |30.11| 0.00| 57| 52| 84|09| 1| 10| |13| |30.11| 0.00| 61| 49| 64|09| 5| 15| |30.14| 0.00| 62| 48| 60|09| 5| 18| |30.06| 0.00| 64| 53| 67|09| 6| 15| |16| |30.08| 0.00| 62| 51| 68|02| 6| 16| |30.11| 0.00| 63| 50| 62|09| 6| 16| |30.01| 0.00| 65| 52| 62|04| 6| 16| |19| |30.10| 0.00| 57| 49| 74|06| 0| 7| |30.12| 0.00| 58| 50| 74|09| 0| 4| |30.02| 0.00| 59| 51| 74|09| 0| 4| |22| |30.12| 0.00| 51| 47| 85|00| 0| 0| |30.14| 0.00| 52| 48| 85|00| 0| 0| |30.05| 0.00| 53| 49| 86|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 25 | OCT 26 | OCT 27 | | | | | |01| |30.05| 0.00| 51| 48| 90|00| 0| 0| |30.14| 0.00| 49| 45| 85|31| 0| 1| |29.85| 0.00| 59| 54| 82|22| 4| 12| |04| |30.09| 0.00| 53| 51| 93|04| 0| 11| |30.10| 0.00| 49| 44| 83|24| 0| 4| |29.81| 0.00| 58| 52| 82|22| 4| 12| |07| |30.16| 0.00| 56| 47| 73|02| 4| 16| |30.07| 0.00| 48| 44| 86|20| 0| 3| |29.80| 0.00| 57| 52| 82|22| 6| 17| |10| |30.23| 0.00| 59| 48| 65|04| 4| 16| |30.05| 0.00| 57| 50| 78|22| 6| 17| |29.79| 0.00| 62| 54| 75|22| 7| 19| |13| |30.19| 0.00| 64| 45| 51|02| 4| 13| |29.97| 0.00| 69| 57| 65|22| 7| 20| |29.72| 0.00| 73| 57| 58|22| 6| 20| |16| |30.15| 0.00| 66| 45| 46|02| 2| 10| |29.89| 0.00| 73| 58| 59|22| 7| 19| |29.67| 0.00| 76| 59| 56|22| 7| 20| |19| |30.15| 0.00| 59| 47| 64|00| 0| 0| |29.89| 0.00| 66| 56| 70|22| 4| 12| |29.73| 0.00| 69| 58| 66|22| 4| 18| |22| |30.16| 0.00| 52| 46| 81|00| 0| 0| |29.89| 0.00| 61| 55| 80|22| 0| 7| |29.79| 0.00| 67| 57| 70|22| 4| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 28 | OCT 29 | OCT 30 | | | | | |01| |29.97| 0.00| 57| 47| 70|04| 12| 31| |30.02| 0.01| 53| 51| 93|09| 6| 18| |30.07| 0.00| 40| 35| 82|02| 10| 23| |04| |30.04| 0.00| 53| 43| 69|04| 11| 26| |29.91| 0.00| 54| 52| 93|09| 6| 18| |30.13| 0.00| 40| 34| 81|02| 10| 22| |07| |30.11| 0.00| 50| 42| 73|09| 12| 26| |29.80| 0.00| 58| 56| 91|09| 4| 15| |30.21| 0.00| 39| 34| 83|04| 6| 19| |10| |30.17| 0.00| 49| 41| 73|09| 10| 21| |29.79| 0.06| 56| 54| 93|27| 11| 25| |30.28| 0.00| 43| 34| 72|04| 7| 19| |13| |30.16| 0.00| 50| 42| 75|09| 7| 18| |29.78| 0.00| 50| 47| 91|27| 10| 22| |30.30| 0.00| 49| 35| 59|04| 7| 19| |16| |30.14| 0.02| 48| 45| 89|09| 6| 16| |29.84| 0.00| 42| 39| 87|31| 11| 26| |30.30| 0.00| 52| 31| 45|02| 6| 18| |19| |30.13| 0.00| 49| 46| 91|09| 7| 21| |29.95| 0.00| 42| 38| 84|00| 7| 25| |30.33| 0.00| 47| 35| 64|09| 0| 10| |22| |30.09| 0.00| 52| 48| 87|09| 6| 17| |30.02| 0.00| 41| 37| 84|00| 10| 25| |30.36| 0.00| 40| 36| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | OCT 31 | | | | | | | |01| |30.37| 0.00| 38| 35| 88|00| 0| 0| | | |04| |30.36| 0.00| 37| 34| 89|00| 0| 0| | | |07| |30.36| 0.00| 36| 34| 90|00| 0| 0| | | |10| |30.33| 0.00| 50| 44| 79|09| 4| 10| | | |13| |30.27| 0.00| 59| 46| 62|20| 4| 14| | | |16| |30.22| 0.00| 60| 49| 66|18| 0| 15| | | |19| |30.18| 0.00| 57| 48| 73|09| 0| 6| | | |22| |30.20| 0.06| 53| 50| 89|02| 6| 18| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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| |30.032| 54| 50| 87| 1.8| 07 | 0.5| |04| |30.022| 53| 49| 87| 1.6| 07 | 0.6| |07| |30.041| 52| 48| 88| 1.8| 10 | 0.6| |10| |30.062| 59| 53| 80| 5.2| 08 | 1.3| |13| |30.032| 65| 54| 67| 5.6| 19 | 0.7| |16| |29.999| 66| 53| 64| 5.3| 27 | 0.4| |19| |30.013| 62| 53| 73| 1.8| 28 | 0.1| |22| |30.039| 57| 52| 83| 1.7| 03 | 0.5| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
October 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| | | | | | | | | | | | | | | | | | |0.01|0.03| | | | |01 02| | | | | | | |0.01| | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | |0.01| |0.01|0.01| | | | | | | | | |12 13| | | |0.04| | | | | | | | | | | | |0.20|0.02|0.05| | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | |0.01|18 19| |0.01|0.16|0.18|0.24|0.07|0.03|0.01| | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | |0.02|0.01|0.01| | | | |0.01|28 29| |0.01| |0.01| | | | | |0.35|0.06|0.12| | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | |0.01|0.06|0.41|31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.02|0.16|0.23|0.24|0.07|0.03|0.02|0.00|0.35|0.06|0.13|0.00|0.01|0.01|0.00|0.22|0.03|0.07|0.03|0.00|0.01|0.06|0.43|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.)