474
CDUS41 KLWX 182122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT FRI APR 18 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 3:59 PM 90 1976 68 12 79
MINIMUM 41 2:31 AM 29 2018 44 -3 53
AVERAGE 61 56 5 66
PRECIPITATION (IN)
TODAY 0.00 0.59 1978 0.11 -0.11 T
MONTH TO DATE 1.37 1.98 -0.61 1.43
SINCE MAR 1 2.79 5.48 -2.69 5.32
SINCE JAN 1 7.21 11.03 -3.82 12.77
SNOWFALL (IN)
TODAY 0.0 T 2022 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 0
DEGREE DAYS
HEATING
TODAY 4 10 -6 0
MONTH TO DATE 217 226 -9 134
SINCE MAR 1 667 873 -206 598
SINCE JUL 1 3989 4383 -394 3562
COOLING
TODAY 0 1 -1 1
MONTH TO DATE 2 7 -5 19
SINCE MAR 1 19 9 10 19
SINCE JAN 1 19 9 10 22
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 6:00 AM
LOWEST 28 3:00 PM
AVERAGE 52
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 91 2002
MINIMUM TEMPERATURE (F) 44 27 1990
2001
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 6:29 AM EDT SUNSET 7:50 PM EDT
APRIL 19 2025.........SUNRISE 6:27 AM EDT SUNSET 7:51 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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