LOCAL CLIMATOLOGICAL DATA Monthly Summary December 2024 Station: PWRS Portsmouth, Virginia Latitude: 36° 59' 09" N Longitude: 76° 33' 00" W Elevation (ground): 13 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | 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 | m^2 | | | | | | | | | | |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| 51.3 | 31.2 | 41.3 | 40.3 | 28| 62| 24| 0|.........| 0| T | 0.0| 30.20| 30.08|30.147| 4.5| 4.4|233| 21|WSW| 0| 0| | |02| 42.2 | 27.7 | 35.0 | 36.8 | 23| 59| 30| 0|.........| 0| T | 0.0| 30.29| 30.14|30.220| 7.0| 6.4|319| 26|NNW| 0| 0| | |03| 42.3 | 26.3 | 34.3 | 33.9 | 23| 65| 31| 0|.........| 0| 0.00| 0.0| 30.39| 30.29|30.345| 5.5| 5.1|313| 20|NNW| 0| 0| | |04| 48.0 | 24.4 | 36.2 | 36.9 | 23| 59| 29| 0|.........| 0| 0.00| 0.0| 30.37| 29.92|30.210| 7.5| 7.3|208| 30|SSW| 0| 0| | |05| 55.3 | 31.0 | 43.2 | 44.1 | 23| 44| 22| 0|.........| 0| 0.00| 0.0| 30.16| 29.75|29.896|13.0| 9.7|265| 37| W| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 39.5 | 25.6 | 32.5 | 31.6 | 16| 54| 32| 0|.........| 0| 0.00| 0.0| 30.28| 30.16|30.234| 6.5| 5.5|307| 27|NNW| 0| 0| | |07| 46.0 | 21.9*| 34.0 | 33.6 | 19| 58| 31| 0|.........| 0| 0.00| 0.0| 30.33| 30.13|30.242| 4.0| 3.7|211| 17| SW| 0| 0| | |08| 65.0 | 35.2 | 50.1 | 49.9 | 32| 50| 15| 0|.........| 0| 0.00| 0.0| 30.09| 29.93|30.009| 9.2| 9.1|223| 26| SW| 0| 0| | |09| 58.4 | 45.2 | 51.8 | 52.3 | 45| 75| 13| 0|.........| 0| 0.02| 0.0| 30.06| 29.97|30.017| 8.2| 8.0|212| 26| SW| 0| 0| | |10| 66.3 | 51.3 | 58.8 | 59.6 | 57| 90| 6| 0|..3......| 0| 0.20| 0.0| 30.07| 29.92|30.003| 6.3| 5.9|194| 22| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 70.3 | 40.3 | 55.3 | 61.2 | 58| 91| 10| 0|..3......| 0| 2.54| 0.0| 30.04| 29.53|29.756|12.6|11.4|214| 35| SW| 0| 0| | |12| 49.0 | 32.3 | 40.7 | 39.0 | 29| 71| 24| 0|.........| 0| 0.00| 0.0| 30.48| 30.07|30.302| 6.0| 5.9|243| 25|WSW| 0| 0| | |13| 51.8 | 29.7 | 40.8 | 40.7 | 31| 72| 24| 0|.........| 0| 0.00| 0.0| 30.72| 30.47|30.609| 2.9| 2.6| 48| 18|ENE| 0| 0| | |14| 49.3 | 39.4 | 44.3 | 44.2 | 38| 80| 21| 0|.........| 0| 0.00| 0.0| 30.81| 30.71|30.759| 9.5| 8.9| 44| 25| NE| 0| 0| | |15| 54.2 | 43.4 | 48.8 | 49.6 | 44| 82| 16| 0|.........| 0| T | 0.0| 30.71| 30.41|30.586| 6.3| 5.8| 66| 22|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 55.5 | 50.7 | 53.1 | 52.5 | 50| 93| 11| 0|1........| 0| 0.07| 0.0| 30.40| 30.25|30.328| 1.1| 0.8|340| 11|NNE| 0| 0| | |17| 71.4 | 51.6 | 61.5 | 60.2 | 57| 88| 3| 0|1........| 0| 0.01| 0.0| 30.25| 30.17|30.217| 5.5| 5.4|219| 24| SW| 0| 0| | |18| 73.3 | 52.0 | 62.7 | 62.4 | 58| 86| 2| 0|12.......| 0| 0.02| 0.0| 30.24| 30.01|30.125| 6.2| 5.4|196| 23|SSW| 0| 0| | |19| 62.7 | 44.5 | 53.6 | 48.4 | 40| 74| 11| 0|1........| 0| T | 0.0| 30.29| 30.02|30.204|10.5| 9.1| 24| 31| N| 0| 0| | |20| 47.0 | 40.3 | 43.7 | 44.8 | 41| 86| 21| 0|.........| 0| 0.03| 0.0| 30.11| 29.84|29.948| 7.3| 5.8|350| 20|NNE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 45.2 | 33.5 | 39.3 | 39.7 | 25| 57| 25| 0|.........| 0| 0.00| 0.0| 30.32| 29.93|30.145|11.0|10.5|336| 32| NW| 0| 0| | |22| 35.5 | 25.1 | 30.3*| 31.5 | 19| 60| 34| 0|.........| 0| 0.00| 0.0| 30.56| 30.33|30.455| 8.1| 7.5| 4| 24| N| 0| 0| | |23| 39.0 | 24.7 | 31.9 | 32.3 | 23| 69| 33| 0|.........| 0| 0.00| 0.0| 30.63| 30.43|30.545| 5.9| 5.5| 51| 20|NNE| 0| 0| | |24| 52.4 | 33.4 | 42.9 | 41.5 | 31| 69| 22| 0|.........| 0| 0.00| 0.0| 30.40| 30.24|30.307| 3.7| 1.1|346| 16|NNE| 0| 0| | |25| 47.4 | 33.9 | 40.7 | 40.7 | 33| 75| 24| 0|.........| 0| 0.00| 0.0| 30.39| 30.27|30.337| 6.5| 6.2| 28| 24|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 45.5 | 31.4 | 38.5 | 38.8 | 32| 77| 26| 0|.........| 0| 0.00| 0.0| 30.45| 30.36|30.394| 6.7| 6.1| 33| 21|NNE| 0| 0| | |27| 50.4 | 35.2 | 42.8 | 43.6 | 40| 85| 22| 0|.........| 0| 0.00| 0.0| 30.41| 30.28|30.359| 4.8| 4.5| 53| 17|ENE| 0| 0| | |28| 73.8*| 47.0 | 60.4 | 60.9 | 55| 82| 4| 0|.........| 0| 0.00| 0.0| 30.29| 30.19|30.239| 7.3| 7.0|184| 29|SSW| 0| 0| | |29| 72.2 | 56.9 | 64.6*| 64.4 | 57| 79| 0| 0|.........| 0| 0.17| 0.0| 30.19| 29.73|29.982|11.0|10.7|186| 38|SSW| 0| 0| | |30| 65.6 | 44.5 | 55.0 | 56.6 | 49| 77| 9| 0|.........| 0| 0.01| 0.0| 29.94| 29.70|29.815| 8.4| 8.2|233| 28| SW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |31| 68.4 | 39.0 | 53.7 | 54.4 | 48| 80| 11| 0|..3......| 0| 0.31| 0.0| 29.94| 29.57|29.754| 6.4| 5.6|187| 30| S| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+---- 596.5 0 ---------+----+ Number of +------+------+----+----+---+---+---+---+---+------+ |1694.2|1148.6|------|------|---|--- | 0| Days | 3.38| 0.0| 30.81| 29.53|30.209| 7.1| 1.4|265| 38|SSW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------| 0.00" and 100% of normal+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Yearly Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 54.6| 36.9| 45.8 | 46.0 | 37|72.5|----|----|>.01 Inch 10|52.28| 0.0| 14 | 11 |------|----|----|---| 29 | | | + +1.0+ +0.5+ +0.8 +------+---+----+----+----+------------|+1.54" or 103% 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 | | |Thunder 3|Precipitation | Snow, Ice Plts | and Date | +--------+--------+---------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >=90°F | <=32°F | <=32°F | <=0°F |----|----|Heavy Fog 1| 2.74| 10-11| 0.0 | - | 0 | - | +--------+--------+---------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 12 | 0 |----|----|Clear 13 Partly Cloudy 12 Cloudy 6 | +--------+--------+---------+--------+----+----+------------------------------------------+ 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: Solar Radiation is measured in Watts/m^2 and 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: 1st, 5th, 11th, 17th (warm), 19th, 20th, 28th (warm) FROST: 1st, 2nd, 3rd, 4th, 6th, 7th, 12th (AM & PM), 13th, 22nd, 23rd, 24th, 25th, 26th, 27th NEW STATION DAILY RECORDS: 2nd - TEMPERATURE TIED minimum maximum [ previously 1979] 7th - TEMPERATURE Minimum22° [previously 23° 2010] 11th - RAINFALL 2.54" [previously 2.16" 2008] MONTHLY AVERAGE MAXIMUM TEMP OF 54.6° WAS 1.0° ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 36.9° WAS 0.5° AVOVE NORMAL. MONTHLY AVERAGE AVERAGE TEMP OF 45.8° WAS 0.8° ABOVE NORMAL. MAXIMUM TEMP: 74° on the 28th MINIMUM TEMP: 22° on the 7th DAYS WITH TEMPERATURES: MAXIMUM >= 90° : 0 MAXIMUM <= 32° : 0 MINIMUM <= 32° : 12 MINIMUM <= 0° : 0 HEATING DEGREE DAYS: 596.5 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 31 DAYS WITH COOLING DEGREE DAYS: 0 PRECIP TOTAL OF 3.38" NORMAL (100% of normal). GREATEST DAILY RAINFALL: 2.54" on the 14th GREATEST 24-HOUR RAINFALL: 2.74" on the 10th and 11th DAYS WITH MEASUREABLE PRECIP: 10 or 36.26% AVERAGE DAILY PRECIP: 0.11" NORMAL DAILY PRECIP: 0.11" DAYS WITH PRECIP >= 0.01" 10 DAYS WITH PRECIP >= 0.10" 4 DAYS WITH PRECIP >= 0.50" 1 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 3 NUMBER OF THUNDERSTORMS: 3 DAYS WITH HAIL: 0 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" CLOUDY DAYS: 6 PARTLY CLOUDY DAYS: 12 SUNNY/CLEAR DAYS: 13 DAYS WITH F/GF: 4 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 14 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 71.7° WAS 1.8° ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 54.1° WAS 2.3° ABOVE NORMAL. YEARLY AVERAGE AVERAGE TEMP OF 62.9° WAS 2.0° ABOVE NORMAL. MAXIMUM TEMP: 97° on June 23rd, June 26th, August 2nd MINIMUM TEMP: 21° on January 7th, 21st, 22nd DAYS WITH TEMPERATURES: MAXIMUM >= 90° : 36 MAXIMUM <= 32° : 0 MINIMUM <= 32° : 32 MINIMUM <= 0° : 0 HEATING DEGREE DAYS: 2673.5 COOLING DEGREE DAYS: 1895.5 DAYS WITH HEATING DEGREE DAYS: 187 DAYS WITH COOLING DEGREE DAYS: 177 PRECIP TOTAL OF 52.28" WAS 1.54" ABOVE NORMAL ( 103% of normal ). GREATEST DAILY RAINFALL: 2.94" on March 28th GREATEST 24-HOUR RAINFALL: 3.01" on March 27th & 28th DAYS WITH MEASUREABLE PRECIP: 123 of 366 or 33.61% AVERAGE DAILY PRECIP: 0.14" NORMAL DAILY PRECIP: 0.14" DAYS WITH PRECIP >= 0.01" 123 DAYS WITH PRECIP >= 0.10" 79 DAYS WITH PRECIP >= 0.50" 32 DAYS WITH PRECIP >= 1.00" 19 DAYS WITH THUNDERSTORMS: 39 NUMBER OF THUNDERSTORMS: 41 DAYS WITH SNOW: 0 SNOWFALL TOTAL: 0.0" DAYS WITH HAIL: 1 CLOUDY DAYS: 50 PARTLY CLOUDY DAYS: 149 SUNNY/CLEAR DAYS: 167 DAYS WITH F/GF: 74 DAYS WITH DENSE FOG: 2 DAYS WITH FROST: 41 OBSERVATIONS AT 3-HOUR INTERVALS December 2024: PWRS Portsmouth, Virginia +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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| |30.18| 0.00| 32| 23| 69|22| 4| 11| |30.14| 0.00| 42| 32| 66|29| 6| 17| |30.29| 0.00| 27| 21| 78|27| 0| 6| |04| |30.18| 0.00| 34| 24| 66|22| 5| 11| |30.15| 0.00| 40| 31| 72|31| 6| 15| |30.30| 0.00| 27| 23| 83|00| 0| 0| |07| |30.19| 0.00| 32| 23| 71|22| 0| 6| |30.20| 0.00| 36| 25| 62|31| 6| 16| |30.34| 0.00| 32| 24| 73|31| 6| 15| |10| |30.19| 0.00| 44| 27| 52|22| 6| 14| |30.24| 0.00| 38| 21| 50|33| 11| 20| |30.38| 0.00| 38| 25| 60|00| 10| 18| |13| |30.11| 0.00| 51| 29| 42|22| 11| 20| |30.21| 0.00| 40| 19| 43|33| 12| 22| |30.33| 0.00| 42| 23| 46|29| 10| 17| |16| |30.08| 0.00| 49| 30| 48|24| 7| 20| |30.22| 0.00| 39| 19| 44|31| 10| 18| |30.33| 0.00| 41| 22| 47|31| 10| 19| |19| |30.11| 0.00| 40| 32| 73|00| 0| 0| |30.26| 0.00| 33| 20| 59|27| 4| 7| |30.37| 0.00| 34| 23| 66|27| 4| 6| |22| |30.13| 0.00| 41| 32| 71|31| 0| 10| |30.28| 0.00| 29| 22| 75|27| 4| 6| |30.39| 0.00| 30| 22| 73|27| 4| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 4 | DEC 5 | DEC 6 | | | | | |01| |30.37| 0.00| 27| 21| 78|27| 4| 6| |29.87| 0.00| 42| 27| 54|20| 12| 24| |30.16| 0.00| 30| 12| 47|29| 7| 17| |04| |30.36| 0.00| 26| 21| 81|00| 0| 0| |29.78| 0.00| 44| 28| 53|22| 13| 28| |30.20| 0.00| 28| 13| 53|27| 6| 17| |07| |30.36| 0.00| 25| 21| 85|00| 0| 0| |29.76| 0.00| 44| 29| 56|22| 13| 26| |30.23| 0.00| 26| 15| 61|29| 5| 13| |10| |30.35| 0.00| 40| 25| 55|20| 6| 14| |29.76| 0.00| 51| 34| 51|22| 15| 28| |30.26| 0.00| 35| 18| 48|33| 14| 27| |13| |30.22| 0.00| 48| 21| 35|22| 12| 25| |29.80| 0.00| 54| 30| 40|27| 13| 29| |30.22| 0.00| 39| 18| 43|33| 12| 23| |16| |30.12| 0.00| 46| 23| 40|20| 12| 24| |29.92| 0.00| 47| 14| 26|31| 14| 31| |30.23| 0.00| 38| 17| 43|31| 7| 18| |19| |30.06| 0.00| 43| 24| 47|20| 12| 24| |30.06| 0.00| 39| 14| 36|31| 13| 27| |30.26| 0.00| 32| 18| 56|24| 5| 11| |22| |29.99| 0.00| 41| 25| 53|20| 12| 20| |30.14| 0.00| 34| 14| 42|31| 12| 24| |30.28| 0.00| 27| 18| 67|24| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 7 | DEC 8 | DEC 9 | | | | | |01| |30.29| 0.00| 26| 19| 74|00| 0| 0| |30.09| 0.00| 35| 21| 55|18| 6| 14| |30.01| 0.00| 48| 37| 66|00| 0| 0| |04| |30.30| 0.00| 24| 18| 80|00| 0| 0| |30.05| 0.00| 37| 22| 54|22| 7| 15| |30.01| 0.00| 46| 37| 71|18| 4| 10| |07| |30.30| 0.00| 22| 18| 83|00| 0| 0| |30.04| 0.00| 39| 24| 56|22| 12| 21| |30.03| 0.00| 49| 37| 64|18| 6| 13| |10| |30.33| 0.00| 37| 22| 54|22| 6| 14| |30.02| 0.00| 51| 30| 44|22| 12| 23| |30.06| 0.00| 52| 43| 73|20| 7| 17| |13| |30.25| 0.00| 46| 17| 31|22| 7| 15| |29.95| 0.00| 63| 35| 35|22| 13| 23| |29.99| 0.02| 56| 53| 90|22| 12| 24| |16| |30.19| 0.00| 44| 21| 39|20| 5| 14| |29.94| 0.00| 65| 39| 39|22| 11| 23| |29.99| 0.00| 58| 50| 74|22| 11| 22| |19| |30.18| 0.00| 38| 20| 48|18| 6| 11| |30.00| 0.00| 56| 39| 53|22| 5| 11| |30.02| 0.00| 55| 49| 78|22| 11| 20| |22| |30.15| 0.00| 35| 20| 55|18| 6| 12| |30.02| 0.00| 52| 38| 57|22| 7| 15| |30.03| 0.00| 53| 48| 83|22| 6| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 10 | DEC 11 | DEC 12 | | | | | |01| |30.03| 0.00| 53| 50| 90|22| 9| 17| |29.89| 0.48| 64| 62| 94|18| 7| 15| |30.07| 0.00| 39| 32| 78|24| 10| 20| |04| |30.02| 0.00| 52| 50| 93|22| 0| 10| |29.82| 0.00| 65| 64| 94|18| 11| 25| |30.17| 0.00| 35| 30| 84|24| 5| 14| |07| |30.05| 0.00| 53| 51| 93|20| 4| 12| |29.78| 0.40| 66| 64| 94|20| 16| 33| |30.24| 0.00| 33| 30| 87|22| 5| 13| |10| |30.07| 0.00| 59| 56| 92|20| 6| 16| |29.74| 0.02| 70| 65| 86|20| 17| 30| |30.31| 0.00| 42| 31| 66|24| 10| 24| |13| |30.00| 0.00| 65| 61| 86|20| 7| 16| |29.61| 0.09| 66| 64| 94|20| 13| 28| |30.29| 0.00| 48| 28| 46|24| 11| 23| |16| |29.98| 0.00| 66| 62| 87|18| 6| 14| |29.54| 0.04| 66| 64| 94|20| 13| 25| |30.34| 0.00| 46| 26| 46|24| 11| 20| |19| |29.98| 0.00| 65| 62| 90|18| 7| 18| |29.70| 0.05| 54| 52| 93|27| 14| 33| |30.42| 0.00| 38| 30| 73|00| 0| 0| |22| |29.98| 0.00| 64| 60| 89|18| 10| 17| |29.91| 0.00| 45| 39| 81|27| 12| 24| |30.45| 0.00| 34| 29| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 13 | DEC 14 | DEC 15 | | | | | |01| |30.47| 0.00| 32| 28| 85|00| 0| 0| |30.71| 0.00| 44| 39| 83|04| 7| 15| |30.70| 0.00| 47| 39| 73|06| 10| 18| |04| |30.50| 0.00| 31| 27| 88|00| 0| 0| |30.73| 0.00| 41| 37| 85|00| 7| 15| |30.69| 0.00| 44| 39| 84|33| 7| 15| |07| |30.58| 0.00| 30| 27| 90|00| 0| 0| |30.78| 0.00| 40| 36| 86|04| 7| 16| |30.67| 0.00| 44| 39| 85|04| 6| 16| |10| |30.64| 0.00| 42| 34| 72|00| 0| 0| |30.81| 0.00| 45| 39| 78|04| 12| 19| |30.66| 0.00| 51| 43| 74|06| 11| 22| |13| |30.60| 0.00| 51| 31| 46|04| 6| 17| |30.77| 0.00| 49| 40| 71|04| 14| 25| |30.57| 0.00| 54| 46| 73|09| 7| 19| |16| |30.62| 0.00| 50| 29| 45|04| 5| 10| |30.76| 0.00| 45| 39| 78|02| 12| 21| |30.54| 0.00| 51| 47| 86|09| 6| 16| |19| |30.67| 0.00| 43| 34| 69|06| 0| 5| |30.75| 0.00| 45| 40| 82|04| 10| 19| |30.50| 0.00| 51| 48| 89|06| 6| 13| |22| |30.70| 0.00| 45| 41| 85|04| 6| 14| |30.75| 0.00| 45| 38| 76|06| 10| 19| |30.47| 0.00| 53| 50| 90|06| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 16 | DEC 17 | DEC 18 | | | | | |01| |30.40| 0.00| 52| 50| 92|00| 0| 0| |30.22| 0.00| 53| 52| 94|22| 6| 13| |30.24| 0.00| 58| 56| 92|00| 0| 0| |04| |30.37| 0.02| 51| 49| 93|06| 0| 3| |30.20| 0.00| 56| 54| 94|20| 7| 15| |30.23| 0.00| 56| 54| 93|22| 0| 6| |07| |30.37| 0.01| 51| 49| 93|00| 0| 0| |30.22| 0.00| 55| 53| 94|22| 7| 17| |30.24| 0.00| 55| 53| 93|06| 4| 15| |10| |30.38| 0.00| 53| 52| 94|29| 4| 7| |30.25| 0.00| 60| 58| 93|22| 11| 22| |30.21| 0.00| 57| 55| 94|00| 0| 0| |13| |30.32| 0.00| 54| 52| 93|02| 0| 7| |30.17| 0.00| 70| 61| 71|22| 12| 22| |30.09| 0.00| 72| 61| 70|20| 11| 18| |16| |30.28| 0.00| 54| 51| 92|31| 5| 10| |30.18| 0.00| 67| 60| 77|22| 6| 15| |30.03| 0.00| 70| 61| 72|20| 11| 20| |19| |30.30| 0.00| 53| 51| 94|00| 0| 0| |30.22| 0.00| 62| 58| 88|00| 0| 0| |30.03| 0.00| 66| 62| 87|20| 11| 22| |22| |30.27| 0.00| 51| 49| 94|00| 0| 0| |30.25| 0.00| 59| 57| 92|00| 0| 0| |30.01| 0.00| 65| 62| 90|20| 11| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.07 | 0.13 | 0.19 | 0.25 | 0.37 | 0.55 | 0.72 | 0.76 | 0.80 | 0.85 | 0.87 | 0.89 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1605 | 1610 | 1615 | 1620 | 1630 | 1645 | 1700 | 1718 | 1736 | 1800 | 1800 | 1800 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2024: PWRS Portsmouth, Virginia +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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| |30.02| 0.00| 61| 59| 93|22| 4| 10| |30.11| 0.00| 47| 40| 76|06| 7| 17| |29.93| 0.00| 40| 33| 77|33| 7| 17| |04| |30.10| 0.00| 51| 44| 79|00| 13| 27| |30.05| 0.01| 44| 41| 90|02| 10| 20| |29.99| 0.00| 38| 32| 78|31| 7| 17| |07| |30.22| 0.00| 47| 40| 77|02| 14| 29| |29.98| 0.00| 45| 41| 87|02| 10| 19| |30.07| 0.00| 41| 30| 65|33| 13| 23| |10| |30.29| 0.00| 47| 37| 67|02| 16| 27| |29.97| 0.00| 46| 42| 87|00| 10| 17| |30.18| 0.00| 42| 27| 55|33| 15| 30| |13| |30.25| 0.00| 47| 35| 63|02| 14| 25| |29.86| 0.00| 46| 43| 90|31| 5| 13| |30.14| 0.00| 44| 24| 44|31| 14| 28| |16| |30.25| 0.00| 47| 36| 66|04| 10| 18| |29.84| 0.00| 47| 43| 86|31| 6| 15| |30.18| 0.00| 42| 19| 39|31| 13| 26| |19| |30.27| 0.00| 46| 38| 74|04| 6| 13| |29.89| 0.00| 45| 41| 84|31| 7| 18| |30.25| 0.00| 37| 19| 48|00| 10| 16| |22| |30.20| 0.00| 45| 38| 75|02| 10| 18| |29.94| 0.00| 41| 37| 83|31| 6| 17| |30.30| 0.00| 35| 19| 51|33| 10| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 22 | DEC 23 | DEC 24 | | | | | |01| |30.33| 0.00| 33| 19| 57|00| 7| 17| |30.56| 0.00| 25| 21| 84|04| 0| 7| |30.40| 0.00| 35| 31| 87|00| 0| 0| |04| |30.35| 0.00| 31| 17| 55|02| 12| 23| |30.56| 0.00| 27| 19| 72|04| 4| 7| |30.35| 0.00| 36| 31| 84|00| 0| 0| |07| |30.42| 0.00| 30| 17| 57|00| 12| 24| |30.59| 0.00| 28| 17| 61|02| 6| 13| |30.35| 0.00| 34| 31| 87|00| 0| 0| |10| |30.49| 0.00| 33| 18| 53|00| 13| 23| |30.63| 0.00| 35| 18| 49|02| 11| 20| |30.35| 0.00| 41| 32| 69|22| 5| 12| |13| |30.45| 0.00| 35| 17| 49|00| 11| 19| |30.55| 0.00| 38| 25| 59|06| 10| 18| |30.26| 0.00| 51| 27| 40|22| 6| 13| |16| |30.46| 0.00| 34| 18| 52|33| 7| 16| |30.53| 0.00| 37| 26| 63|06| 10| 19| |30.24| 0.00| 49| 28| 44|02| 4| 15| |19| |30.52| 0.00| 30| 21| 69|06| 4| 10| |30.52| 0.00| 34| 27| 75|06| 5| 12| |30.26| 0.00| 44| 31| 59|04| 5| 11| |22| |30.55| 0.00| 27| 21| 79|00| 0| 0| |30.47| 0.00| 31| 28| 86|00| 0| 0| |30.29| 0.00| 42| 35| 75|00| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 25 | DEC 26 | DEC 27 | | | | | |01| |30.27| 0.00| 38| 34| 86|02| 5| 6| |30.36| 0.00| 33| 29| 87|00| 0| 0| |30.38| 0.00| 38| 34| 86|02| 5| 10| |04| |30.28| 0.00| 40| 35| 82|02| 7| 15| |30.37| 0.00| 32| 29| 89|00| 0| 0| |30.38| 0.00| 37| 34| 87|02| 5| 13| |07| |30.33| 0.00| 39| 34| 84|00| 6| 14| |30.40| 0.00| 38| 32| 79|02| 5| 12| |30.41| 0.00| 36| 33| 90|02| 4| 7| |10| |30.36| 0.00| 44| 34| 67|02| 11| 20| |30.45| 0.00| 43| 33| 66|04| 12| 20| |30.41| 0.00| 46| 40| 80|06| 7| 15| |13| |30.35| 0.00| 47| 32| 56|02| 12| 24| |30.39| 0.00| 45| 34| 64|00| 11| 18| |30.34| 0.00| 50| 43| 76|06| 6| 13| |16| |30.34| 0.00| 44| 31| 59|00| 12| 20| |30.38| 0.00| 42| 33| 71|04| 11| 18| |30.33| 0.00| 47| 43| 84|06| 10| 17| |19| |30.35| 0.00| 39| 32| 74|06| 0| 7| |30.40| 0.00| 40| 33| 77|00| 7| 15| |30.33| 0.00| 47| 43| 88|06| 4| 10| |22| |30.39| 0.00| 35| 30| 83|00| 0| 0| |30.40| 0.00| 39| 33| 79|02| 6| 14| |30.31| 0.00| 46| 43| 90|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 28 | DEC 29 | DEC 30 | | | | | |01| |30.26| 0.00| 49| 47| 92|15| 4| 10| |30.19| 0.00| 62| 57| 82|18| 7| 15| |29.72| 0.00| 60| 58| 93|22| 10| 24| |04| |30.25| 0.00| 53| 51| 93|18| 0| 10| |30.17| 0.00| 60| 56| 84|18| 6| 12| |29.70| 0.00| 57| 55| 91|22| 10| 20| |07| |30.26| 0.00| 51| 49| 93|15| 4| 11| |30.13| 0.00| 57| 53| 87|15| 5| 13| |29.76| 0.01| 56| 54| 93|22| 11| 22| |10| |30.29| 0.00| 62| 57| 84|15| 7| 15| |30.11| 0.00| 67| 57| 72|18| 11| 21| |29.82| 0.00| 59| 52| 79|24| 11| 25| |13| |30.21| 0.00| 73| 60| 63|20| 18| 29| |29.96| 0.00| 71| 58| 63|18| 15| 33| |29.79| 0.00| 65| 48| 53|24| 11| 20| |16| |30.19| 0.00| 71| 59| 67|18| 7| 17| |29.89| 0.00| 68| 59| 71|20| 18| 38| |29.82| 0.00| 61| 44| 54|22| 11| 26| |19| |30.23| 0.00| 65| 59| 81|20| 10| 18| |29.81| 0.00| 67| 59| 77|18| 14| 29| |29.89| 0.00| 52| 44| 73|22| 0| 6| |22| |30.23| 0.00| 63| 59| 85|18| 10| 19| |29.78| 0.06| 65| 62| 89|20| 14| 30| |29.93| 0.00| 47| 42| 84|22| 4| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | DEC 31 | | | | | | | |01| |29.92| 0.00| 43| 40| 88|22| 0| 5| | | |04| |29.93| 0.00| 41| 38| 90|00| 0| 0| | | |07| |29.90| 0.00| 39| 37| 91|22| 0| 1| | | |10| |29.87| 0.00| 58| 48| 70|15| 7| 15| | | |13| |29.73| 0.00| 66| 51| 59|15| 12| 22| | | |16| |29.62| 0.00| 68| 57| 69|18| 13| 30| | | |19| |29.57| 0.00| 63| 56| 78|18| 7| 16| | | |22| |29.59| 0.10| 57| 54| 90|22| 10| 24| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+ 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| |30.212| 42| 36| 79| 4.6| 23 | 1.2| |04| |30.211| 41| 36| 80| 4.9| 29 | 1.2| |07| |30.232| 41| 35| 80| 6.0| 31 | 1.1| |10| |30.255| 48| 38| 69| 9.5| 31 | 1.5| |13| |30.185| 53| 38| 59| 10.6| 25 | 2.9| |16| |30.173| 51| 38| 61| 9.5| 26 | 2.2| |19| |30.199| 47| 38| 72| 6.0| 23 | 1.3| |22| |30.213| 44| 38| 78| 5.7| 24 | 1.8| +--+----+------+---+---+---+-----+----+----+ HOURLY PRECIPITATION (Water Equivalent) December 2024: PWRS Portsmouth, Virginia ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | |0.02| | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | |0.01| | |0.19|10 | | | | | | | | | | | | | | | | | | | | | | | | | 11|0.48| | | | | |0.40| |0.01|0.02|0.06|0.34|0.09|0.17|0.04|0.04|0.71|0.13|0.05| | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| |0.01| |0.02|0.01|0.01|0.01| |0.01| | | | | | | | | | | | | | | |16 17| |0.01| | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | |0.02|18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | |0.01|0.01| | | | | |0.01| | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | |0.06|0.11| |29 30| | | | | | |0.01| | | | | | | | | | | | | | | | | |30 31| | | | | | | | | | | | | | | | | | | | | |0.10|0.17|0.04|31 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.48|0.02|0.00|0.03|0.02|0.01|0.42|0.00|0.02|0.02|0.07|0.34|0.11|0.17|0.04|0.04|0.71|0.13|0.05|0.00|0.01|0.16|0.28|0.25|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.)