Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 160633
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
233 AM EDT THU OCT 16 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 15 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 73 3:05 PM 88 1989 68 5 57
MINIMUM 54 6:29 AM 28 1987 46 8 41
AVERAGE 64 57 7 49
PRECIPITATION (IN)
YESTERDAY 0.00 1.30 2014 0.12 -0.12 T
MONTH TO DATE 0.43 1.81 -1.38 0.13
SINCE SEP 1 1.65 5.75 -4.10 3.40
SINCE JAN 1 26.29 34.97 -8.68 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 1 9 -8 16
MONTH TO DATE 58 99 -41 67
SINCE SEP 1 65 144 -79 79
SINCE JUL 1 67 145 -78 81
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 12 19 -7 14
SINCE SEP 1 182 171 11 151
SINCE JAN 1 1330 1227 103 1565
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 34 5:00 PM
AVERAGE 62
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 85 1989
MINIMUM TEMPERATURE (F) 45 30 1986
SUNRISE AND SUNSET
OCTOBER 16 2025.......SUNRISE 7:21 AM EDT SUNSET 6:29 PM EDT
OCTOBER 17 2025.......SUNRISE 7:22 AM EDT SUNSET 6:28 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$