701
CDUS41 KLWX 140631
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 AM EDT THU MAY 14 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 13 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 77 12:39 PM 92 2000 74 3 67
MINIMUM 54 11:43 PM 32 1976 52 2 62
AVERAGE 66 63 3 65
PRECIPITATION (IN)
YESTERDAY 0.41 1.93 1971 0.15 0.26 1.71
MONTH TO DATE 0.82 1.90 -1.08 3.15
SINCE MAR 1 5.34 8.87 -3.53 6.58
SINCE JAN 1 11.14 14.42 -3.28 11.00
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 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 4 -4 0
MONTH TO DATE 82 65 17 20
SINCE MAR 1 732 1032 -300 711
SINCE JUL 1 4361 4542 -181 4033
COOLING
YESTERDAY 1 2 -1 0
MONTH TO DATE 8 22 -14 29
SINCE MAR 1 94 44 50 76
SINCE JAN 1 94 44 50 76
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 11.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 PM
LOWEST 37 12:00 PM
AVERAGE 67
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 89 2010
MINIMUM TEMPERATURE (F) 52 32 1996
2013
SUNRISE AND SUNSET
MAY 14 2026...........SUNRISE 5:58 AM EDT SUNSET 8:15 PM EDT
MAY 15 2026...........SUNRISE 5:57 AM EDT SUNSET 8:16 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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