976
CDUS41 KLWX 210621
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
221 AM EDT MON APR 21 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 20 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 2:24 PM 88 1976 69 4 74
1985
2023
MINIMUM 61 11:59 PM 28 1974 45 16 53
AVERAGE 67 57 10 64
PRECIPITATION (IN)
YESTERDAY 0.00 2.90 2008 0.12 -0.12 0.01
MONTH TO DATE 1.37 2.21 -0.84 1.45
SINCE MAR 1 2.79 5.71 -2.92 5.34
SINCE JAN 1 7.21 11.26 -4.05 12.79
SNOWFALL (IN)
YESTERDAY 0.0 T 1983 0.0 0.0 0.0
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 9 -9 1
MONTH TO DATE 217 244 -27 145
SINCE MAR 1 667 891 -224 609
SINCE JUL 1 3989 4401 -412 3573
COOLING
YESTERDAY 2 1 1 0
MONTH TO DATE 14 9 5 19
SINCE MAR 1 31 11 20 19
SINCE JAN 1 31 11 20 22
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 3:00 AM
LOWEST 38 6:00 PM
AVERAGE 61
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1985
MINIMUM TEMPERATURE (F) 45 29 1983
SUNRISE AND SUNSET
APRIL 21 2025.........SUNRISE 6:24 AM EDT SUNSET 7:53 PM EDT
APRIL 22 2025.........SUNRISE 6:23 AM EDT SUNSET 7:54 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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