550
CXUS51 KLWX 082335
CLMDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
635 PM EST WED JAN 08 2025
...............................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
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 69 12/08 66 3 63
LOWEST 21 12/23 17 4 29
AVG. MAXIMUM 49.4 48.8 0.6 53.1
AVG. MINIMUM 34.4 34.5 -0.1 38.0
MEAN 41.9 41.7 0.2 45.5
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 1.3 -1.3 0
DAYS MIN <= 32 13 13.3 -0.3 6
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.56 1901
MINIMUM 0.19 1889
TOTALS 2.88 3.41 -0.53 6.43
DAILY AVG. 0.09 0.11 -0.02 0.21
DAYS >= .01 11 10.1 0.9 11
DAYS >= .10 6 6.4 -0.4 8
DAYS >= .50 2 2.7 -0.7 4
DAYS >= 1.00 0 0.6 -0.6 3
GREATEST
24 HR. TOTAL 0.94 12/10 TO 12/11 2.41
STORM TOTAL 0.90 1.92
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 16.6 2009
TOTALS 0.1 1.7 -1.6 0.1
SINCE 7/1 0.1 1.8 -1.7 MM
DAYS >= TRACE 3 1.3 1.7 2
DAYS >= 1.0 0 0.5 -0.5 0
GREATEST
SNOW DEPTH 0 0
DEGREE DAYS
HEATING TOTAL 708 724 -16 597
SINCE 7/1 1131 1370 -239 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 2029 1737 292 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.7
HIGHEST WIND SPEED/DIRECTION 37/280
HIGHEST GUST SPEED/DIRECTION 58/290
SKY COVER
AVERAGE SKY COVER 0.67
AVERAGE RH (PERCENT) 60
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 5
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 SLEET 1
FOG 10 FOG W/VIS <= 1/4 MILE 4
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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