Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 100520
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1220 AM EST FRI JAN 10 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 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 31 4:29 PM 64 2008 42 -11 59
MINIMUM 18 4:19 AM -8 1970 26 -8 38
AVERAGE 25 34 -9 49
PRECIPITATION (IN)
YESTERDAY 0.00 1.76 2024 0.09 -0.09 1.76
MONTH TO DATE 0.69 0.83 -0.14 2.74
SINCE DEC 1 4.03 4.13 -0.10 8.49
SINCE JAN 1 0.69 0.83 -0.14 2.74
SNOWFALL (IN)
YESTERDAY 0.0 3.5 1997 0.2 -0.2 0.0
MONTH TO DATE 6.2 1.3 4.9 T
SINCE DEC 1 6.3 4.1 2.2 0.5
SINCE JUL 1 6.3 4.4 1.9 0.5
SNOW DEPTH 4
DEGREE DAYS
HEATING
YESTERDAY 40 31 9 16
MONTH TO DATE 309 275 34 238
SINCE DEC 1 1138 1120 18 913
SINCE JUL 1 1806 2020 -214 1684
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 15.5
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 4:00 AM
LOWEST 36 3:00 PM
AVERAGE 48
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 59 2016
MINIMUM TEMPERATURE (F) 25 0 1982
SUNRISE AND SUNSET
JANUARY 10 2025.......SUNRISE 7:28 AM EST SUNSET 5:07 PM EST
JANUARY 11 2025.......SUNRISE 7:28 AM EST SUNSET 5:08 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$