483
CDUS41 KLWX 170626
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
226 AM EDT FRI APR 17 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 16 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 92R 4:09 PM 91 2002 67 25 61
MINIMUM 63 6:39 AM 28 1981 43 20 44
AVERAGE 78 55 23 53
PRECIPITATION (IN)
YESTERDAY 0.00 2.43 1993 0.11 -0.11 0.00
MONTH TO DATE 0.72 1.76 -1.04 1.37
SINCE MAR 1 3.57 5.26 -1.69 2.79
SINCE JAN 1 9.37 10.81 -1.44 7.21
SNOWFALL (IN)
YESTERDAY 0.0 T 1988 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE MAR 1 1.0 4.0 -3.0 0.0
SINCE JUL 1 13.6 21.0 -7.4 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 12
MONTH TO DATE 93 206 -113 196
SINCE MAR 1 535 853 -318 646
SINCE JUL 1 4164 4363 -199 3968
COOLING
YESTERDAY 13 1 12 0
MONTH TO DATE 55 5 50 2
SINCE MAR 1 71 7 64 19
SINCE JAN 1 71 7 64 19
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 7:00 AM
LOWEST 25 4:00 PM
AVERAGE 49
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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 2026.........SUNRISE 6:30 AM EDT SUNSET 7:49 PM EDT
APRIL 18 2026.........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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