Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
012
CXUS51 KLWX 012102
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
402 PM EST SUN NOV 01 2026
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...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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 96 10/02/2019
LOW 15 10/24/1969
HIGHEST 89 10/02 83 6 84
10/14
LOWEST 36 10/19 27 9 30
10/22
10/24
AVG. MAXIMUM 71.8 67.8 4.0 69.3
AVG. MINIMUM 48.2 45.3 2.9 44.8
MEAN 60.0 56.6 3.4 57.0
DAYS MAX >= 90 0 0.2 -0.2 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 2.4 -2.4 1
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.22 2005
MINIMUM T 1963
TOTALS 3.61 3.65 -0.04 2.13
DAILY AVG. 0.12 0.12 0.00 0.07
DAYS >= .01 8 8.1 -0.1 11
DAYS >= .10 5 5.1 -0.1 6
DAYS >= .50 2 2.4 -0.4 2
DAYS >= 1.00 1 1.2 -0.2 0
GREATEST
24 HR. TOTAL 2.60 10/11 TO 10/12 1.16
STORM TOTAL 1.91 0.58
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 1.3 1979
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 MM
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
DEGREE DAYS
HEATING TOTAL 189 284 -95 251
SINCE 7/1 210 329 -119 MM
COOLING TOTAL 44 22 22 12
SINCE 1/1 1548 1230 318 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.3
HIGHEST WIND SPEED/DIRECTION 29/320
HIGHEST GUST SPEED/DIRECTION 41/320
SKY COVER
AVERAGE SKY COVER 0.39
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 3
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 14 FOG W/VIS <= 1/4 MILE 1
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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