Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 192124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT WED AUG 19 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 19 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 3:21 PM 95 2002 86 3 72
2019
MINIMUM 62 5:42 AM 51 1998 65 -3 65
AVERAGE 76 76 0 69
PRECIPITATION (IN)
TODAY 0.00 1.54 1967 0.11 -0.11 0.01
MONTH TO DATE 3.53 2.17 1.36 0.83
SINCE JUN 1 13.16 10.62 2.54 10.70
SINCE JAN 1 28.08 27.86 0.22 24.62
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 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
TODAY 11 11 0 4
MONTH TO DATE 269 219 50 179
SINCE JUN 1 982 835 147 977
SINCE JAN 1 1155 941 214 1095
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 2:00 AM
LOWEST 43 2:00 PM
AVERAGE 68
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 104 1983
MINIMUM TEMPERATURE (F) 65 47 1964
1976
1998
SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE 6:27 AM EDT SUNSET 7:59 PM EDT
AUGUST 20 2026........SUNRISE 6:28 AM EDT SUNSET 7:58 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$