National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-04-12 06:26 UTC
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966
CDUS41 KLWX 120626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT SAT APR 12 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 11 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 49 12:16 AM 87 1977 65 -16 71
MINIMUM 45 11:59 PM 25 1960 42 3 64
1970
1971
AVERAGE 47 54 -7 68
PRECIPITATION (IN)
YESTERDAY 0.53 0.74 2009 0.11 0.42 0.05
MONTH TO DATE 1.14 1.22 -0.08 1.33
SINCE MAR 1 2.56 4.72 -2.16 5.22
SINCE JAN 1 6.98 10.27 -3.29 12.67
SNOWFALL (IN)
YESTERDAY 0.0 T 1973 0.0 0.0 0.0
1986
MONTH TO DATE 0.0 0.1 -0.1 T
SINCE MAR 1 0.0 4.0 -4.0 T
SINCE JUL 1 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 18 12 6 0
MONTH TO DATE 144 151 -7 119
SINCE MAR 1 594 798 -204 583
SINCE JUL 1 3916 4308 -392 3547
COOLING
YESTERDAY 0 0 0 3
MONTH TO DATE 2 0 2 9
SINCE MAR 1 19 2 17 9
SINCE JAN 1 19 2 17 12
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 PM
LOWEST 77 12:00 AM
AVERAGE 85
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 87 1977
MINIMUM TEMPERATURE (F) 42 23 1982
SUNRISE AND SUNSET
APRIL 12 2025.........SUNRISE 6:37 AM EDT SUNSET 7:44 PM EDT
APRIL 13 2025.........SUNRISE 6:36 AM EDT SUNSET 7:45 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$