220
CXUS51 KLWX 011103
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
603 AM EST SUN FEB 01 2026
...............................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 79 01/26/2024
LOW -18 01/22/1984
HIGHEST 62 01/07 63 -1 59
LOWEST 3 01/27 2 1 4
AVG. MAXIMUM 39.8 42.6 -2.8 38.6
AVG. MINIMUM 21.5 25.2 -3.7 22.1
MEAN 30.6 33.9 -3.3 30.4
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 9 5.6 3.4 9
DAYS MIN <= 32 27 24.3 2.7 27
DAYS MIN <= 0 0 0.3 -0.3 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.61 1979
MINIMUM 0.40 1981
TOTALS 3.18 2.94 0.24 2.00
DAILY AVG. 0.10 0.09 0.01 0.06
DAYS >= .01 7 10.3 -3.3 9
DAYS >= .10 2 5.9 -3.9 3
DAYS >= .50 2 2.0 0.0 2
DAYS >= 1.00 2 0.6 1.4 0
GREATEST
24 HR. TOTAL 2.05 01/25 TO 01/25 0.85
STORM TOTAL 1.84 0.84
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 30.9 1996
TOTALS 8.2 6.9 1.3 10.5
SINCE 7/1 10.2 10.0 0.2 MM
DAYS >= TRACE 6 3.1 2.9 8
DAYS >= 1.0 1 1.6 -0.6 3
GREATEST
SNOW DEPTH 8R 01/26 5
DEGREE DAYS
HEATING TOTAL 1058 964 94 1068
SINCE 7/1 2785 2702 83 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 0 0 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.9
HIGHEST WIND SPEED/DIRECTION 36/320
36/300
HIGHEST GUST SPEED/DIRECTION 46/300
SKY COVER
AVERAGE SKY COVER 0.58
AVERAGE RH (PERCENT) 57
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 1
LIGHT RAIN 4 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 2
LIGHT SNOW 5 SLEET 2
FOG 10 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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