National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2025-04-29 06:24 UTC
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947
CDUS41 KLWX 290624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT TUE APR 29 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 28 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 74 4:05 PM 88 1983 71 3 86
1990
2021
MINIMUM 38 5:51 AM 32 1972 48 -10 53
1993
AVERAGE 56 59 -3 70
PRECIPITATION (IN)
YESTERDAY 0.00 1.68 2002 0.13 -0.13 T
MONTH TO DATE 1.92 3.21 -1.29 1.60
SINCE MAR 1 3.34 6.71 -3.37 5.49
SINCE JAN 1 7.76 12.26 -4.50 12.94
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
2002
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 9 7 2 0
MONTH TO DATE 241 307 -66 215
SINCE MAR 1 691 954 -263 679
SINCE JUL 1 4013 4464 -451 3643
COOLING
YESTERDAY 0 1 -1 5
MONTH TO DATE 19 17 2 25
SINCE MAR 1 36 19 17 25
SINCE JAN 1 36 19 17 28
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 4:00 AM
LOWEST 24 3:00 PM
AVERAGE 53
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 91 2024
MINIMUM TEMPERATURE (F) 48 32 1987
SUNRISE AND SUNSET
APRIL 29 2025.........SUNRISE 6:14 AM EDT SUNSET 8:01 PM EDT
APRIL 30 2025.........SUNRISE 6:13 AM EDT SUNSET 8:02 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$