LOCAL CLIMATOLOGICAL DATA Monthly Summary
December 2013
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| 54.4 | 36.6 | 45.5 | 44.4 | 39| 82| 19| 0|1........| 0| 0.00| 0.0| 30.33| 30.03|30.183| 1.2| 0.9|280| 13| N| 0| 0| | |02| 56.5 | 32.0 | 44.3 | 42.8 | 38| 84| 20| 0|1......8.| 0| 0.00| 0.0| 30.01| 29.84|29.912| 0.9| 0.9| 45| 12| NE| 0| 0| | |03| 58.8 | 33.9 | 46.3 | 45.6 | 39| 80| 18| 0|1........| 0| 0.00| 0.0| 30.03| 29.87|29.948| 0.6| 0.6|203| 15|SSW| 0| 0| | |04| 63.3 | 48.3 | 55.8 | 55.4 | 52| 88| 9| 0|1........| 0| 0.10| 0.0| 30.11| 30.03|30.063| 0.0| 0.0| 0| 10| SE| 0| 0| | |05| 69.4 | 54.3 | 61.8 | 61.8 | 59| 92| 3| 0|1........| 0| 0.01| 0.0| 30.15| 30.04|30.088| 1.7| 1.7|203| 20|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 78.3 | 51.8 | 65.1 | 69.6 | 64| 82| 0| 0|.........| 0| 0.00| 0.0| 30.06| 29.95|30.008| 6.7| 6.0|203| 31|SSW| 0| 0| | |07| 51.8 | 41.7 | 46.8 | 44.6 | 40| 86| 18| 0|.........| 0| 0.49| 0.0| 30.48| 30.08|30.300| 7.6| 7.1| 14| 26| N| 0| 0| | |08| 42.9 | 37.3 | 40.1 | 39.8 | 37| 89| 25| 0|1........| 0| 0.53| 0.0| 30.50| 30.25|30.403| 7.0| 6.6| 31| 24| NE| 0| 0| | |09| 47.0 | 37.7 | 42.3 | 42.3 | 42| 98| 22| 0|1........| 0| 0.20| 0.0| 30.23| 30.07|30.139| 1.4| 0.5|302| 16|SSW| 0| 0| | |10| 46.9 | 34.2 | 40.6 | 41.7 | 41| 97| 24| 0|1......8.| 0| 0.89| 0.0| 30.29| 29.93|30.061| 3.9| 2.5|348| 24|WNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 45.0 | 28.1 | 36.5 | 35.7 | 30| 80| 28| 0|.........| 0| 0.00| 0.0| 30.44| 30.27|30.341| 1.2| 1.1|213| 17|SSW| 0| 0| | |12| 38.2 | 27.1 | 32.7 | 34.4 | 27| 74| 32| 0|.........| 0| 0.00| 0.0| 30.40| 30.25|30.330| 3.8| 3.5| 15| 30| N| 0| 0| | |13| 47.3 | 25.6*| 36.5 | 35.3 | 25| 67| 28| 0|.......8.| 0| 0.00| 0.0| 30.36| 30.26|30.314| 2.6| 2.5|245| 21|WSW| 0| 0| | |14| 59.4 | 34.6 | 47.0 | 45.6 | 41| 84| 18| 0|1........| 0| 0.87| 0.0| 30.33| 29.69|30.113| 0.9| 0.7|154| 23| SE| 0| 0| | |15| 59.3 | 39.0 | 49.2 | 48.4 | 44| 85| 16| 0|.........| 0| 0.02| 0.0| 30.01| 29.66|29.801| 4.5| 4.4|248| 23|WSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 48.3 | 31.2 | 39.8 | 39.6 | 33| 78| 25| 0|.........| 0| 0.00| 0.0| 30.19| 30.02|30.116| 1.9| 1.5|251| 16|WSW| 0| 0| | |17| 59.3 | 37.9 | 48.6 | 46.6 | 40| 79| 16| 0|.........| 0| T | 0.0| 30.15| 29.87|30.023| 2.3| 0.7|234| 30| N| 0| 0| | |18| 45.8 | 32.3 | 39.0 | 40.4 | 32| 74| 26| 0|.........| 0| 0.00| 0.0| 30.28| 29.96|30.170| 4.0| 2.5|316| 23|WSW| 0| 0| | |19| 58.7 | 31.4 | 45.0 | 44.0 | 30| 59| 20| 0|.........| 0| 0.00| 0.0| 30.30| 30.20|30.254| 4.4| 4.4|203| 28|SSW| 0| 0| | |20| 67.7 | 42.6 | 55.1 | 55.0 | 48| 78| 9| 0|.........| 0| 0.00| 0.0| 30.24| 30.12|30.184| 3.6| 3.6|203| 24|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 72.0 | 53.1 | 62.5 | 62.1 | 58| 88| 2| 0|.........| 0| 0.00| 0.0| 30.16| 30.06|30.103| 2.8| 2.8|203| 29|SSW| 0| 0| | |22| 79.4*| 63.7 | 71.6*| 70.3 | 65| 84| 0| 7|.........| 0| 0.01| 0.0| 30.11| 30.03|30.065| 6.4| 6.4|203| 32|SSW| 0| 0| | |23| 73.9 | 45.4 | 59.7 | 64.8 | 63| 95| 5| 0|.........| 0| 1.10| 0.0| 30.15| 30.00|30.051| 5.3| 1.2|216| 28|ENE| 0| 0| | |24| 45.4 | 32.3 | 38.8 | 41.2 | 32| 72| 26| 0|.........| 0| 0.15| 0.0| 30.44| 30.13|30.230| 9.1| 8.4|349| 29| N| 0| 0| | |25| 35.3 | 26.7 | 31.0*| 30.7 | 21| 69| 34| 0|.........| 0| 0.00| 0.0| 30.55| 30.39|30.490| 3.6| 2.8|349| 23| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 47.6 | 27.2 | 37.4 | 35.5 | 29| 80| 27| 0|.....6.8.| 0| 0.01| 0.0| 30.38| 30.24|30.314| 1.3| 1.3|251| 15|WSW| 0| 0| | |27| 48.7 | 27.1 | 37.9 | 37.0 | 29| 75| 27| 0|1......8.| 0| 0.00| 0.0| 30.45| 30.36|30.401| 0.7| 0.5|356| 16| N| 0| 0| | |28| 57.1 | 29.3 | 43.2 | 41.8 | 31| 69| 22| 0|.........| 0| T | 0.0| 30.40| 30.17|30.318| 1.9| 1.9|207| 20|SSW| 0| 0| | |29| 65.0 | 46.1 | 55.5 | 53.3 | 51| 93| 9| 0|1........| 0| 0.84| 0.0| 30.18| 29.58|29.855| 3.4| 2.4|212| 34|SSW| 0| 0| | |30| 54.9 | 38.7 | 46.8 | 46.1 | 41| 84| 18| 0|.........| 0| 0.00| 0.0| 30.16| 29.90|30.025| 1.8| 1.4| 37| 20| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 50.1 | 35.4 | 42.8 | 42.1 | 31| 66| 22| 0|.........| 0| T | 0.0| 30.34| 30.13|30.212| 3.3| 1.0|259| 25|WSW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1727.7|1162.6|------|------|---|----| 568| 7| Days | 5.22| 0.0| 30.55| 29.58|30.155| 3.2| 0.7|269| 34|SSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|+1.92" or 158% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 55.7| 37.5| 46.6 | 46.4 | 40|80.9|----|----|>.01 Inch 13|50.09| T | 25 | 29 |------|----|----|---| 29 | 1+ | | + +2.7 +1.8 +2.2 +------+---+----+----+----+------------|+0.71" or 101% 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 |1136|1744|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 1.25| 23-24| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 12 | 0 |----|----| Clear 10 Partly Cloudy 14 Cloudy 7 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: WARMFROPA 4TH, COLDFROPA 6TH, FROPA 10TH, COLDFROPA 12TH, COLDFROPA 15TH, COLDFROPA 17TH, COLD FROPA 23RD,29TH,30TH,31ST
FROST: 2ND, 3RD, 10TH, 11TH, 12TH, 13TH, 19TH, 25TH, 26TH, 27TH, 28TH
STATION RECORDS:
21st - TEMPERATURE Maximum 72 [previous 69 1988]
22nd - TEMPERATURE Maximum 79 [previous 76 1990]
22nd - TEMPERATURE Maximum low 64 [previous 58 2011]
23rd - RAINFALL 1.10" [previous 0.50" 1998] MONTHLY AVERAGE MAXIMUM TEMP OF 55.7 WAS 2.7 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 37.5 WAS 1.8 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 46.6 WAS 2.2 ABOVE NORMAL. MAXIMUM TEMP: 79 ON THE 22ND MINIMUM TEMP: 26 ON THE 13TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 12 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 577.5 COOLING DEGREE DAYS: 6.5 DAYS WITH HEATING DEGREE DAYS: 29 DAYS WITH COOLING DEGREE DAYS: 01 PRECIP TOTAL OF 5.22" WAS 1.92" ABOVE NORMAL ( 158% OF NORMAL). GREATEST DAILY RAINFALL: 1.10" ON THE 23RD GREATEST 24-HOUR RAINFALL: 1.25" ON THE 23RD-24TH DAYS WITH MEASUREABLE PRECIP: 13 OF 31 DAYS OR 41.94% AVERAGE DAILY PRECIP: 0.17" NORMAL DAILY PRECIP: 0.11" DAYS WITH PRECIP >= 0.01" 13 DAYS WITH PRECIP >= 0.10" 9 DAYS WITH PRECIP >= 0.50" 5 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 0 NUMBER OF THUNDERSTORMS: 0 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" SEASONAL SNOWFALL 2013-2014: TRACE CLOUDY DAYS: 7 PARTLY CLOUDY DAYS 14 SUNNY/CLEAR DAYS: 10 DAYS WITH F/GF: 11 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 11 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 69.2 WAS 0.4 BELOW NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 51.4 WAS 0.1 BELOW NORMAL. YEARLY AVERAGE TEMP OF 60.3 WAS 0.2 BELOW NORMAL. MAXIMUM TEMP: 96 ON JUNE 13TH MINIMUM TEMP: 18 ON JANUARY 23rd & FEBRUARY 18th DAYS WITH TEMPERATURES: MAXIMUM >= 90: 36 MAXIMUM <= 32: 1 MINIMUM <= 32: 55 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 3412.0 COOLING DEGREE DAYS: 1690.5 DAYS WITH HEATING DEGREE DAYS: 202 DAYS WITH COOLING DEGREE DAYS: 159 PRECIP TOTAL OF 50.09" WAS 0.73" ABOVE NORMAL ( 101% OF NORMAL). GREATEST DAILY RAINFALL: 2.47" ON JUNE 10TH GREATEST 24-HOUR RAINFALL: 2.78" ON OCTOBER 9th - 10th DAYS WITH MEASUREABLE PRECIP: 135 OF 365 OR 36.99% AVERAGE DAILY PRECIP: 0.14" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 135 DAYS WITH PRECIP >= 0.10" 85 DAYS WITH PRECIP >= 0.50" 36 DAYS WITH PRECIP >= 1.00" 14 DAYS WITH THUNDERSTORMS: 24 NUMBER OF THUNDERSTORMS: 26 DAYS WITH SNOW (calendar year 2013): 12 SNOWFALL TOTAL (calendar year 2013): 2.7" SEASONAL SNOW 2013-2014 (beginning November 2013): TRACE CLOUDY DAYS: 74 PARTLY CLOUDY DAYS: 171 SUNNY/CLEAR DAYS: 120 DAYS WITH F/GF: 80 DAYS WITH DENSE FOG: 4 DAYS WITH FROST: 44
OBSERVATIONS AT 3-HOUR INTERVALS
December 2013: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 1 | DEC 2 | DEC 3 | | | | | |01| |30.33| 0.00| 41| 38| 87|00| 4| 13| |30.01| 0.00| 36| 34| 94|00| 0| 0| |29.87| 0.00| 36| 34| 93|00| 0| 0| |04| |30.28| 0.00| 40| 37| 89|31| 0| 6| |29.97| 0.00| 33| 32| 95|00| 0| 0| |29.88| 0.00| 35| 33| 94|00| 0| 0| |07| |30.27| 0.00| 38| 35| 90|00| 0| 0| |29.97| 0.00| 32| 31| 96|00| 0| 0| |29.93| 0.00| 34| 33| 95|00| 0| 0| |10| |30.25| 0.00| 44| 40| 87|27| 0| 10| |29.94| 0.00| 44| 44| 99|15| 0| 6| |29.98| 0.00| 46| 45| 99|00| 0| 0| |13| |30.15| 0.00| 52| 41| 66|29| 4| 13| |29.88| 0.00| 56| 42| 60|04| 0| 11| |29.93| 0.00| 56| 42| 60|20| 4| 11| |16| |30.09| 0.00| 54| 39| 56|24| 0| 7| |29.85| 0.00| 55| 38| 53|04| 4| 12| |29.96| 0.00| 58| 43| 56|20| 0| 10| |19| |30.09| 0.00| 46| 42| 86|00| 0| 0| |29.85| 0.00| 46| 42| 86|00| 0| 0| |29.99| 0.00| 51| 43| 72|00| 0| 0| |22| |30.05| 0.00| 40| 37| 90|00| 0| 0| |29.87| 0.00| 40| 37| 91|00| 0| 0| |30.00| 0.00| 49| 41| 75|22| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 4 | DEC 5 | DEC 6 | | | | | |01| |30.04| 0.00| 50| 42| 74|20| 0| 5| |30.08| 0.00| 57| 55| 94|00| 0| 0| |30.03| 0.00| 64| 62| 92|20| 4| 16| |04| |30.04| 0.00| 50| 43| 77|00| 0| 0| |30.09| 0.00| 55| 55| 98|11| 0| 5| |30.02| 0.00| 65| 63| 93|20| 5| 22| |07| |30.07| 0.03| 49| 47| 95|20| 0| 5| |30.12| 0.00| 56| 55| 97|20| 0| 6| |30.02| 0.00| 67| 64| 90|20| 5| 21| |10| |30.11| 0.00| 53| 51| 95|00| 0| 0| |30.15| 0.00| 62| 61| 97|20| 4| 14| |30.06| 0.00| 72| 67| 84|20| 10| 25| |13| |30.05| 0.00| 63| 58| 84|13| 0| 10| |30.07| 0.00| 69| 63| 79|20| 5| 20| |29.99| 0.00| 77| 67| 70|20| 11| 26| |16| |30.04| 0.00| 63| 59| 86|11| 0| 6| |30.05| 0.00| 68| 63| 83|20| 4| 16| |29.97| 0.00| 77| 65| 67|20| 10| 27| |19| |30.07| 0.00| 59| 57| 92|00| 0| 0| |30.08| 0.00| 65| 62| 88|24| 0| 4| |29.99| 0.00| 72| 64| 78|20| 4| 15| |22| |30.09| 0.00| 58| 57| 96|00| 0| 0| |30.05| 0.01| 64| 62| 95|18| 0| 11| |30.01| 0.00| 57| 52| 81|00| 5| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 7 | DEC 8 | DEC 9 | | | | | |01| |30.08| 0.00| 51| 49| 92|00| 5| 17| |30.48| 0.00| 41| 33| 72|04| 10| 20| |30.22| 0.00| 42| 41| 98|00| 4| 13| |04| |30.09| 0.00| 46| 45| 94|04| 4| 15| |30.46| 0.00| 40| 30| 67|04| 7| 24| |30.19| 0.00| 38| 37| 97|00| 4| 12| |07| |30.24| 0.07| 42| 40| 94|00| 6| 26| |30.47| 0.00| 39| 34| 80|04| 10| 23| |30.20| 0.00| 38| 38| 98|18| 0| 7| |10| |30.32| 0.00| 43| 41| 93|00| 10| 21| |30.47| 0.07| 38| 36| 95|04| 7| 20| |30.19| 0.00| 41| 40| 98|20| 4| 12| |13| |30.32| 0.00| 44| 40| 87|00| 10| 20| |30.39| 0.02| 39| 38| 97|04| 7| 23| |30.10| 0.03| 44| 43| 98|20| 0| 11| |16| |30.37| 0.00| 44| 36| 74|00| 7| 20| |30.35| 0.00| 40| 39| 97|04| 6| 21| |30.09| 0.00| 45| 45| 98|20| 0| 10| |19| |30.43| 0.00| 44| 37| 76|04| 7| 21| |30.34| 0.00| 40| 40| 97|00| 5| 18| |30.08| 0.01| 46| 46| 99|20| 4| 16| |22| |30.48| 0.00| 43| 35| 75|04| 7| 22| |30.27| 0.00| 42| 42| 98|00| 4| 16| |30.10| 0.00| 47| 47| 99|24| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 10 | DEC 11 | DEC 12 | | | | | |01| |30.06| 0.00| 47| 47| 99|00| 0| 0| |30.30| 0.00| 33| 31| 92|24| 4| 13| |30.25| 0.00| 34| 30| 86|00| 0| 0| |04| |30.00| 0.02| 46| 46| 98|04| 0| 7| |30.33| 0.00| 30| 29| 93|24| 0| 7| |30.26| 0.00| 34| 29| 82|29| 0| 6| |07| |29.99| 0.17| 44| 43| 98|04| 4| 16| |30.41| 0.00| 29| 27| 93|00| 0| 0| |30.30| 0.00| 35| 31| 87|00| 4| 17| |10| |29.95| 0.02| 41| 41| 97|04| 6| 17| |30.44| 0.00| 34| 30| 85|27| 0| 7| |30.40| 0.00| 37| 29| 74|04| 11| 26| |13| |29.96| 0.06| 40| 39| 97|00| 7| 22| |30.35| 0.00| 42| 29| 60|20| 4| 12| |30.35| 0.00| 37| 25| 60|00| 6| 18| |16| |30.07| 0.00| 40| 38| 93|27| 10| 18| |30.29| 0.00| 44| 31| 61|20| 5| 17| |30.35| 0.00| 37| 21| 51|00| 7| 18| |19| |30.19| 0.00| 40| 38| 93|29| 0| 10| |30.30| 0.00| 38| 32| 79|20| 0| 4| |30.37| 0.00| 31| 24| 74|00| 0| 0| |22| |30.25| 0.00| 37| 35| 94|00| 0| 0| |30.29| 0.00| 36| 31| 82|18| 0| 7| |30.35| 0.00| 28| 24| 85|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 13 | DEC 14 | DEC 15 | | | | | |01| |30.31| 0.00| 26| 24| 89|00| 0| 0| |30.33| 0.00| 35| 29| 77|00| 0| 0| |29.69| 0.00| 56| 55| 96|24| 7| 23| |04| |30.32| 0.00| 26| 23| 88|20| 0| 4| |30.32| 0.00| 36| 30| 78|00| 0| 0| |29.72| 0.00| 48| 47| 95|24| 7| 21| |07| |30.34| 0.00| 26| 21| 80|24| 0| 13| |30.31| 0.00| 39| 32| 77|00| 0| 0| |29.70| 0.00| 46| 44| 96|24| 7| 21| |10| |30.36| 0.00| 37| 23| 57|24| 6| 19| |30.29| 0.00| 44| 36| 73|13| 0| 12| |29.78| 0.00| 46| 44| 95|29| 5| 16| |13| |30.28| 0.00| 45| 25| 46|24| 6| 17| |30.13| 0.00| 51| 39| 64|11| 4| 17| |29.77| 0.00| 51| 45| 80|22| 10| 21| |16| |30.27| 0.00| 47| 27| 46|24| 5| 16| |29.98| 0.02| 49| 48| 94|06| 0| 12| |29.83| 0.00| 53| 43| 70|24| 0| 7| |19| |30.31| 0.00| 39| 28| 65|00| 0| 0| |29.83| 0.19| 53| 53| 99|13| 0| 13| |29.91| 0.00| 47| 41| 77|24| 0| 5| |22| |30.32| 0.00| 35| 29| 77|18| 0| 4| |29.72| 0.24| 59| 59| 99|18| 4| 19| |29.99| 0.00| 42| 35| 75|24| 5| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 16 | DEC 17 | DEC 18 | | | | | |01| |30.02| 0.00| 37| 31| 79|24| 0| 10| |30.15| 0.00| 41| 38| 91|15| 0| 4| |29.96| 0.00| 42| 39| 88|31| 0| 7| |04| |30.05| 0.00| 34| 30| 85|24| 4| 14| |30.11| 0.00| 41| 38| 89|13| 0| 4| |30.05| 0.00| 41| 39| 90|00| 7| 19| |07| |30.09| 0.00| 32| 29| 89|00| 0| 0| |30.11| 0.00| 38| 36| 94|20| 4| 13| |30.14| 0.00| 38| 35| 89|00| 4| 12| |10| |30.15| 0.00| 40| 33| 78|24| 5| 16| |30.10| 0.00| 45| 41| 86|20| 0| 12| |30.22| 0.00| 41| 34| 78|00| 6| 16| |13| |30.10| 0.00| 47| 35| 62|24| 4| 15| |29.99| 0.00| 56| 44| 63|20| 4| 13| |30.18| 0.00| 44| 31| 60|00| 6| 16| |16| |30.13| 0.00| 48| 35| 61|04| 0| 10| |29.93| 0.00| 57| 41| 55|20| 6| 19| |30.20| 0.00| 45| 28| 50|24| 6| 17| |19| |30.19| 0.00| 41| 35| 78|00| 0| 0| |29.91| 0.00| 48| 41| 78|00| 0| 0| |30.25| 0.00| 38| 28| 65|27| 0| 6| |22| |30.16| 0.00| 40| 36| 88|13| 0| 7| |29.92| 0.00| 48| 42| 78|00| 10| 30| |30.28| 0.00| 33| 27| 76|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.04 | 0.07 | 0.10 | 0.14 | 0.20 | 0.30 | 0.40 | 0.41 | 0.42 | 0.49 | 0.57 | 0.66 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 10 | 10 | 10 | 10 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0604 | 0609 | 0613 | 0619 | 0629 | 0644 | 0700 | 0715 | 0557 | 0600 | 0628 | 0700 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
December 2013: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 19 | DEC 20 | DEC 21 | | | | | |01| |30.27| 0.00| 32| 26| 80|22| 0| 6| |30.22| 0.00| 46| 33| 61|20| 0| 12| |30.14| 0.00| 57| 55| 93|20| 0| 12| |04| |30.28| 0.00| 32| 27| 80|20| 0| 5| |30.23| 0.00| 45| 37| 74|20| 4| 19| |30.12| 0.00| 55| 54| 96|20| 0| 11| |07| |30.28| 0.00| 32| 27| 81|20| 0| 11| |30.23| 0.00| 43| 38| 84|00| 0| 0| |30.13| 0.00| 53| 52| 97|20| 0| 7| |10| |30.29| 0.00| 42| 31| 65|20| 6| 20| |30.24| 0.00| 54| 49| 84|20| 5| 20| |30.16| 0.00| 58| 57| 96|20| 4| 21| |13| |30.22| 0.00| 56| 30| 37|20| 11| 28| |30.16| 0.00| 66| 56| 69|20| 7| 21| |30.08| 0.00| 69| 61| 75|20| 7| 27| |16| |30.21| 0.00| 58| 31| 36|20| 7| 25| |30.12| 0.00| 66| 55| 68|20| 7| 24| |30.06| 0.00| 71| 61| 71|20| 6| 22| |19| |30.24| 0.00| 51| 31| 46|20| 5| 17| |30.15| 0.00| 61| 56| 84|20| 4| 14| |30.08| 0.00| 66| 63| 89|20| 0| 12| |22| |30.25| 0.00| 49| 32| 52|20| 4| 14| |30.15| 0.00| 59| 56| 90|20| 4| 13| |30.07| 0.00| 67| 64| 91|20| 5| 22| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 22 | DEC 23 | DEC 24 | | | | | |01| |30.06| 0.00| 67| 65| 94|20| 10| 24| |30.05| 0.00| 67| 66| 97|13| 0| 20| |30.15| 0.06| 44| 43| 94|00| 10| 22| |04| |30.03| 0.00| 68| 66| 94|20| 7| 25| |30.04| 0.00| 70| 68| 95|20| 6| 21| |30.13| 0.01| 42| 38| 87|00| 7| 25| |07| |30.06| 0.00| 69| 66| 92|20| 10| 24| |30.06| 0.39| 69| 68| 94|24| 6| 18| |30.16| 0.00| 41| 35| 79|00| 10| 22| |10| |30.08| 0.00| 72| 68| 87|20| 10| 29| |30.05| 0.01| 71| 71| 99|22| 3| 15| |30.22| 0.00| 41| 33| 75|00| 10| 11| |13| |30.04| 0.00| 77| 68| 74|20| 12| 30| |30.01| 0.07| 68| 67| 95|22| 6| 26| |30.20| 0.00| 42| 32| 66|00| 7| 19| |16| |30.05| 0.00| 78| 66| 67|20| 10| 24| |30.00| 0.00| 67| 66| 95|22| 4| 14| |30.24| 0.00| 43| 30| 61|29| 10| 20| |19| |30.11| 0.00| 67| 61| 80|00| 0| 5| |30.07| 0.04| 56| 54| 95|04| 11| 22| |30.32| 0.00| 40| 31| 68|27| 0| 13| |22| |30.10| 0.00| 65| 60| 84|06| 0| 4| |30.14| 0.15| 47| 46| 97|04| 7| 23| |30.40| 0.00| 36| 22| 56|00| 13| 29| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 25 | DEC 26 | DEC 27 | | | | | |01| |30.44| 0.00| 31| 15| 51|00| 7| 23| |30.38| 0.00| 28| 26| 92|00| 0| 0| |30.36| 0.00| 30| 28| 92|00| 0| 0| |04| |30.47| 0.00| 29| 17| 61|00| 5| 16| |30.33| 0.00| 28| 27| 95|29| 0| 5| |30.37| 0.00| 28| 26| 93|00| 0| 0| |07| |30.52| 0.00| 27| 18| 67|29| 5| 14| |30.32| 0.00| 30| 29| 94|00| 0| 0| |30.41| 0.00| 27| 26| 94|00| 0| 0| |10| |30.55| 0.00| 31| 23| 72|00| 5| 17| |30.35| 0.01| 36| 31| 85|24| 4| 14| |30.45| 0.00| 40| 35| 81|00| 4| 13| |13| |30.51| 0.00| 34| 24| 65|04| 5| 16| |30.25| 0.00| 42| 28| 58|24| 4| 15| |30.41| 0.00| 47| 28| 46|29| 4| 13| |16| |30.50| 0.00| 35| 23| 62|04| 0| 10| |30.25| 0.00| 48| 33| 57|24| 4| 10| |30.39| 0.00| 49| 28| 44|22| 0| 6| |19| |30.49| 0.00| 32| 25| 78|06| 0| 7| |30.31| 0.00| 38| 31| 77|00| 0| 0| |30.40| 0.00| 40| 31| 69|11| 0| 6| |22| |30.44| 0.00| 28| 25| 87|00| 0| 0| |30.34| 0.00| 32| 29| 89|00| 0| 0| |30.42| 0.00| 35| 30| 82|20| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 28 | DEC 29 | DEC 30 | | | | | |01| |30.39| 0.00| 33| 30| 87|00| 0| 0| |30.18| 0.01| 47| 41| 80|20| 0| 6| |29.90| 0.00| 46| 44| 95|00| 0| 0| |04| |30.38| 0.00| 30| 28| 91|00| 0| 0| |30.08| 0.01| 46| 43| 87|20| 0| 5| |29.93| 0.00| 42| 41| 96|00| 0| 0| |07| |30.39| 0.00| 29| 28| 93|18| 0| 5| |29.99| 0.00| 48| 44| 88|04| 0| 14| |29.97| 0.00| 39| 38| 96|00| 0| 0| |10| |30.39| 0.00| 40| 34| 80|20| 5| 12| |29.83| 0.06| 56| 56| 99|13| 5| 20| |30.05| 0.00| 46| 46|100|24| 0| 7| |13| |30.30| 0.00| 54| 33| 44|20| 5| 19| |29.63| 0.15| 64| 64|100|15| 6| 32| |30.01| 0.00| 55| 44| 67|00| 0| 0| |16| |30.27| 0.00| 56| 31| 39|20| 6| 20| |29.64| 0.02| 61| 60| 94|24| 12| 32| |30.05| 0.00| 53| 43| 70|00| 4| 13| |19| |30.25| 0.00| 46| 34| 62|15| 0| 5| |29.76| 0.00| 53| 50| 91|24| 6| 21| |30.10| 0.00| 46| 39| 76|04| 5| 16| |22| |30.23| 0.00| 46| 34| 63|22| 4| 11| |29.85| 0.00| 49| 48| 95|24| 0| 14| |30.16| 0.00| 44| 36| 74|04| 6| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 31 | | | | | | | |01| |30.14| 0.00| 42| 34| 71|04| 4| 14| | | |04| |30.13| 0.00| 41| 33| 75|04| 4| 14| | | |07| |30.19| 0.00| 39| 30| 71|04| 0| 11| | | |10| |30.23| 0.00| 40| 32| 72|00| 0| 0| | | |13| |30.18| 0.00| 48| 36| 62|24| 7| 18| | | |16| |30.20| 0.00| 49| 30| 47|24| 10| 25| | | |19| |30.27| 0.00| 41| 29| 61|00| 0| 0| | | |22| |30.32| 0.00| 37| 29| 73|24| 0| 4| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+
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| |30.157| 43| 39| 86| 2.3| 36 | 0.9| |04| |30.150| 42| 38| 87| 2.4| 35 | 0.5| |07| |30.175| 41| 37| 88| 2.3| 31 | 0.6| |10| |30.197| 46| 41| 85| 4.1| 27 | 0.6| |13| |30.133| 52| 42| 69| 5.7| 23 | 2.4| |16| |30.126| 53| 41| 65| 5.2| 24 | 3.2| |19| |30.160| 47| 41| 78| 1.5| 05 | 0.2| |22| |30.173| 44| 39| 83| 2.4| 00 | 0.8| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
December 2013: 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| | | | | |0.04|0.03|0.03| | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | |0.01| |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | |0.29|0.11|0.07|0.01| | |0.01| | | | | | | | | | | | |07 08| | | | | | | | |0.01|0.04|0.07|0.12|0.02|0.02|0.20|0.02| | |0.03| | | | | |08 09| | | | | | | | | | | | |0.01|0.03|0.03|0.02| |0.01|0.07|0.01| |0.02| | |09 10| | | | |0.02|0.19|0.29|0.17|0.02|0.04|0.02|0.02|0.02|0.06|0.04| | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | |0.03|0.02|0.03|0.20|0.19|0.02|0.14|0.24| |14 15| | | | | |0.02| | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | |0.01|22 23| | | | | | | |0.39|0.04| |0.01| |0.10|0.07| |0.02| |0.03|0.06|0.04|0.03|0.07|0.15|0.09|23 24| |0.06|0.04|0.03|0.01| |0.01| | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | |0.01| | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| |0.01| | |0.01|0.01| | |0.04|0.11|0.06|0.16|0.14|0.15|0.01|0.12|0.02| | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | | | | |31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.07|0.04|0.03|0.04|0.55|0.44|0.66|0.12|0.19|0.17|0.31|0.29|0.33|0.28|0.21|0.04|0.07|0.36|0.24|0.05|0.23|0.40|0.10|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.)