Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
223
CXUS51 KLWX 011241
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
841 AM EDT THU AUG 01 2024
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...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF JULY 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
..............................................................
TEMPERATURE (F)
RECORD
HIGH 105 07/22/2011
LOW 41 07/01/1988
HIGHEST 101 07/16 96 5 98
LOWEST 58 07/02 52 6 61
AVG. MAXIMUM 91.6 87.6 4.0 91.2
AVG. MINIMUM 70.1 66.8 3.3 69.0
MEAN 80.8 77.2 3.6 80.1
DAYS MAX >= 90 18 12.5 5.5 21
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 11.21 2018
MINIMUM 0.94 1983
TOTALS 2.66 4.15 -1.49 5.09
DAILY AVG. 0.09 0.13 -0.04 0.16
DAYS >= .01 9 11.0 -2.0 14
DAYS >= .10 7 6.7 0.3 9
DAYS >= .50 2 2.7 -0.7 5
DAYS >= 1.00 0 1.3 -1.3 0
GREATEST
24 HR. TOTAL 0.68 07/12 TO 07/12 0.96
07/04 TO 07/04
07/12 TO 07/12
STORM TOTAL 0.68 0.96
(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 0 0 0 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 499 378 121 473
SINCE 1/1 1036 722 314 MM
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WIND (MPH)
AVERAGE WIND SPEED 5.7
HIGHEST WIND SPEED/DIRECTION 30/290
HIGHEST GUST SPEED/DIRECTION 43/290
SKY COVER
AVERAGE SKY COVER 0.61
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 10 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 4
LIGHT RAIN 11 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 0
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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