854
CDUS41 KLWX 152126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT THU MAY 15 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 15 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 3:47 PM 90 1962 75 5 67
MINIMUM 64 5:18 AM 37 1984 53 11 57
2016
AVERAGE 72 64 8 62
PRECIPITATION (IN)
TODAY 0.08 2.40 2003 0.16 -0.08 0.08
MONTH TO DATE 3.33 2.22 1.11 2.47
SINCE MAR 1 6.76 9.19 -2.43 8.10
SINCE JAN 1 11.18 14.74 -3.56 15.55
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
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 0 4 -4 3
MONTH TO DATE 20 73 -53 45
SINCE MAR 1 711 1040 -329 724
SINCE JUL 1 4033 4550 -517 3688
COOLING
TODAY 7 2 5 0
MONTH TO DATE 39 26 13 42
SINCE MAR 1 86 48 38 86
SINCE JAN 1 86 48 38 89
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 2.9
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 58 4:00 PM
AVERAGE 79
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 90 1998
MINIMUM TEMPERATURE (F) 53 35 2000
SUNRISE AND SUNSET
MAY 15 2025...........SUNRISE 5:57 AM EDT SUNSET 8:16 PM EDT
MAY 16 2025...........SUNRISE 5:56 AM EDT SUNSET 8:17 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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