Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
372
CXUS51 KLWX 012359
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
759 PM EDT SUN SEP 01 2024
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...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 104 08/20/1983
LOW 38 08/29/1982
HIGHEST 101 08/02 95 6 97
LOWEST 49 08/22 50 -1 54
AVG. MAXIMUM 87.9 86.3 1.6 88.1
AVG. MINIMUM 65.9 65.2 0.7 66.4
MEAN 76.9 75.7 1.2 77.2
DAYS MAX >= 90 12 9.3 2.7 12
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.71 1984
MINIMUM 0.44 1998
TOTALS 5.13 3.53 1.60 1.85
DAILY AVG. 0.17 0.11 0.06 0.06
DAYS >= .01 9 9.3 -0.3 8
DAYS >= .10 7 5.6 1.4 4
DAYS >= .50 3 2.2 0.8 1
DAYS >= 1.00 2 1.1 0.9 0
GREATEST
24 HR. TOTAL 1.92 08/29 TO 08/29 0.93
STORM TOTAL 1.92 0.93
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
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 2 1 1 0
SINCE 7/1 2 0 2 MM
COOLING TOTAL 378 334 44 386
SINCE 1/1 1414 1056 358 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.9
HIGHEST WIND SPEED/DIRECTION 32/290
HIGHEST GUST SPEED/DIRECTION 48/260
SKY COVER
AVERAGE SKY COVER 0.53
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 10 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 12 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 0
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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