Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
578
CXUS51 KLWX 010820
CLMDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
420 AM EDT FRI AUG 01 2025
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...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF JULY 2025...
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 106 07/20/1930
LOW 52 07/04/1933
07/04/1907
07/31/1895
HIGHEST 98 07/25 97 1 104
LOWEST 69 07/05 61 8 65
AVG. MAXIMUM 90.3 89.6 0.7 92.4
AVG. MINIMUM 74.5 72.4 2.1 75.0
MEAN 82.4 81.0 1.4 83.7
DAYS MAX >= 90 18 15.4 2.6 19
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 11.06 1945
MINIMUM 0.82 1872
TOTALS 3.54 4.33 -0.79 4.82
DAILY AVG. 0.11 0.14 -0.03 0.16
DAYS >= .01 14 10.5 3.5 12
DAYS >= .10 8 6.7 1.3 8
DAYS >= .50 2 3.2 -1.2 3
DAYS >= 1.00 1 1.1 -0.1 2
GREATEST
24 HR. TOTAL 1.17 07/09 TO 07/10 1.57
STORM TOTAL 1.16 1.57
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL MM 2022
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 548 496 52 589
SINCE 1/1 1123 1006 117 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.9
HIGHEST WIND SPEED/DIRECTION 37/260
HIGHEST GUST SPEED/DIRECTION 55/260
SKY COVER
AVERAGE SKY COVER 0.63
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 15 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 10
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 10 FOG W/VIS <= 1/4 MILE 1
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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