Climatological Report (Monthly)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
525
CXUS51 KLWX 010909
CLMDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
509 AM EDT TUE SEP 01 2026
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...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 106 08/06/1918
LOW 49 08/29/1986
08/31/1934
08/24/1890
HIGHEST 94 08/09 96 -2 96
08/17
LOWEST 64 08/25 59 5 58
AVG. MAXIMUM 88.2 87.8 0.4 84.2
AVG. MINIMUM 71.9 71.0 0.9 67.3
MEAN 80.1 79.4 0.7 75.8
DAYS MAX >= 90 11 10.8 0.2 5
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 14.41 1928
MINIMUM 0.20 2025
TOTALS 4.27 3.25 1.02 0.20
DAILY AVG. 0.14 0.10 0.04 0.01
DAYS >= .01 11 8.7 2.3 6
DAYS >= .10 7 5.6 1.4 0
DAYS >= .50 2 2.1 -0.1 0
DAYS >= 1.00 1 0.8 0.2 0
GREATEST
24 HR. TOTAL 1.74 08/02 TO 08/02 0.14
STORM TOTAL 1.74 0.08
(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 473 446 27 342
SINCE 1/1 1609 1452 157 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.4
HIGHEST WIND SPEED/DIRECTION 30/320
HIGHEST GUST SPEED/DIRECTION 53/240
SKY COVER
AVERAGE SKY COVER 0.64
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 10 MIXED PRECIP 1
HEAVY RAIN 5 RAIN 7
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 7 FOG W/VIS <= 1/4 MILE 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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