Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 182129
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT TUE AUG 18 2026
...................................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 3:31 PM 98 2002 88 1 77
MINIMUM 75 5:25 AM 54 1902 71 4 68
AVERAGE 82 79 3 73
PRECIPITATION (IN)
TODAY 0.00 1.67 1875 0.10 -0.10 0.01
MONTH TO DATE 3.48 1.88 1.60 0.05
SINCE JUN 1 8.74 10.41 -1.67 9.07
SINCE JAN 1 20.77 26.54 -5.77 27.11
SNOWFALL (IN)
TODAY 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
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 8
SINCE JUL 1 0 0 0 0
COOLING
TODAY 17 14 3 8
MONTH TO DATE 304 274 30 235
SINCE JUN 1 1216 1113 103 1157
SINCE JAN 1 1440 1280 160 1358
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 2:00 AM
LOWEST 51 4:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 2002
2019
MINIMUM TEMPERATURE (F) 71 53 1924
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:25 AM EDT SUNSET 7:59 PM EDT
AUGUST 19 2026........SUNRISE 6:26 AM EDT SUNSET 7:57 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$