Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 100623
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EDT FRI OCT 10 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 9 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 65 3:28 PM 94 2007 70 -5 72
MINIMUM 46 4:31 AM 26 2001 48 -2 42
AVERAGE 56 59 -3 57
PRECIPITATION (IN)
YESTERDAY 0.00 2.53 1976 0.12 -0.12 0.00
MONTH TO DATE 0.16 1.13 -0.97 0.13
SINCE SEP 1 1.38 5.07 -3.69 3.40
SINCE JAN 1 26.02 34.29 -8.27 29.18
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 SEP 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 9 7 2 8
MONTH TO DATE 26 51 -25 18
SINCE SEP 1 33 96 -63 30
SINCE JUL 1 35 97 -62 32
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 12 14 -2 14
SINCE SEP 1 182 166 16 151
SINCE JAN 1 1330 1222 108 1565
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 6:00 AM
LOWEST 34 3:00 PM
AVERAGE 51
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 87 2017
MINIMUM TEMPERATURE (F) 48 31 1972
1978
SUNRISE AND SUNSET
OCTOBER 10 2025.......SUNRISE 7:15 AM EDT SUNSET 6:38 PM EDT
OCTOBER 11 2025.......SUNRISE 7:16 AM EDT SUNSET 6:37 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$