145
CDUS41 KLWX 220625
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
225 AM EDT THU MAY 22 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 21 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 59 3:49 PM 92 1996 76 -17 86
2022
MINIMUM 54 11:11 PM 33 1992 55 -1 57
AVERAGE 57 65 -8 72
PRECIPITATION (IN)
YESTERDAY 0.50 1.06 2003 0.17 0.33 0.00
MONTH TO DATE 3.86 3.16 0.70 3.16
SINCE MAR 1 7.29 10.13 -2.84 8.79
SINCE JAN 1 11.71 15.68 -3.97 16.24
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 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 8 3 5 0
MONTH TO DATE 31 93 -62 47
SINCE MAR 1 722 1060 -338 726
SINCE JUL 1 4044 4570 -526 3690
COOLING
YESTERDAY 0 3 -3 7
MONTH TO DATE 68 44 24 56
SINCE MAR 1 115 66 49 100
SINCE JAN 1 115 66 49 103
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 PM
LOWEST 72 12:00 AM
AVERAGE 85
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 91 2022
MINIMUM TEMPERATURE (F) 55 31 2002
SUNRISE AND SUNSET
MAY 22 2025...........SUNRISE 5:51 AM EDT SUNSET 8:22 PM EDT
MAY 23 2025...........SUNRISE 5:51 AM EDT SUNSET 8:23 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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