879
CDUS41 KLWX 170625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT THU APR 17 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 16 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 61 2:44 PM 91 2002 67 -6 78
MINIMUM 44 5:08 AM 28 1981 43 1 48
AVERAGE 53 55 -2 63
PRECIPITATION (IN)
YESTERDAY 0.00 2.43 1993 0.11 -0.11 0.00
MONTH TO DATE 1.37 1.76 -0.39 1.43
SINCE MAR 1 2.79 5.26 -2.47 5.32
SINCE JAN 1 7.21 10.81 -3.60 12.77
SNOWFALL (IN)
YESTERDAY 0.0 T 1988 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
YESTERDAY 12 10 2 2
MONTH TO DATE 196 206 -10 134
SINCE MAR 1 646 853 -207 598
SINCE JUL 1 3968 4363 -395 3562
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 5 -3 16
SINCE MAR 1 19 7 12 16
SINCE JAN 1 19 7 12 19
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WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 13.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 51 4:00 AM
LOWEST 26 4:00 PM
AVERAGE 39
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 93 2002
MINIMUM TEMPERATURE (F) 44 27 1983
SUNRISE AND SUNSET
APRIL 17 2025.........SUNRISE 6:30 AM EDT SUNSET 7:49 PM EDT
APRIL 18 2025.........SUNRISE 6:29 AM EDT SUNSET 7:50 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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