133
CXUS51 KLWX 070246
CLMDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
946 PM EST TUE JAN 06 2026
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 79 12/07/1998
LOW -13 12/31/1880
HIGHEST 61 12/29 66 -5 69
LOWEST 18 12/14 17 1 21
12/15
AVG. MAXIMUM 44.7 48.8 -4.1 49.4
AVG. MINIMUM 29.8 34.5 -4.7 34.4
MEAN 37.3 41.7 -4.4 41.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 1 1.3 -0.3 0
DAYS MIN <= 32 21 13.3 7.7 13
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.56 1901
MINIMUM 0.19 1889
TOTALS 1.77 3.41 -1.64 2.88
DAILY AVG. 0.06 0.11 -0.05 0.09
DAYS >= .01 9 10.1 -1.1 11
DAYS >= .10 3 6.4 -3.4 6
DAYS >= .50 1 2.7 -1.7 2
DAYS >= 1.00 0 0.6 -0.6 0
GREATEST
24 HR. TOTAL 0.86 12/02 TO 12/02 0.94
STORM TOTAL 0.86 0.90
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 16.6 2009
TOTALS 1.5 1.7 -0.2 0.1
SINCE 7/1 1.5 1.8 -0.3 MM
DAYS >= TRACE 7 1.3 5.7 3
DAYS >= 1.0 1 0.5 0.5 0
GREATEST
SNOW DEPTH MM 0
DEGREE DAYS
HEATING TOTAL 852 724 128 708
SINCE 7/1 1447 1370 77 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 1716 1737 -21 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.9
HIGHEST WIND SPEED/DIRECTION 33/300
HIGHEST GUST SPEED/DIRECTION 54/310
SKY COVER
AVERAGE SKY COVER 0.68
AVERAGE RH (PERCENT) 60
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 7 SLEET 3
FOG 8 FOG W/VIS <= 1/4 MILE 1
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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