Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 310629
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 AM EDT THU JUL 31 2025
...................................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 30 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 93 4:00 PM 99 1953 89 4 88
MINIMUM 79 5:31 AM 56 1914 72 7 75
AVERAGE 86 81 5 82
PRECIPITATION (IN)
YESTERDAY 0.00 4.25 1878 0.13 -0.13 0.04
MONTH TO DATE 3.46 4.20 -0.74 4.25
SINCE JUN 1 8.94 8.40 0.54 5.40
SINCE JAN 1 26.98 24.53 2.45 23.94
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 8 4 4 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 21 16 5 17
MONTH TO DATE 528 477 51 570
SINCE JUN 1 902 820 82 1020
SINCE JAN 1 1103 987 116 1245
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 49 4:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 103 1954
MINIMUM TEMPERATURE (F) 72 52 1895
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:09 AM EDT SUNSET 8:20 PM EDT
AUGUST 1 2025........SUNRISE 6:10 AM EDT SUNSET 8:19 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$