226
CDUS41 KLWX 122125
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT MON MAY 12 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 12 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 76 1:11 PM 90 2018 74 2 69
MINIMUM 50 5:24 AM 34 1969 52 -2 48
AVERAGE 63 63 0 59
PRECIPITATION (IN)
TODAY 0.00 1.37 1974 0.16 -0.16 0.05
MONTH TO DATE 1.43 1.75 -0.32 2.04
SINCE MAR 1 4.86 8.72 -3.86 7.67
SINCE JAN 1 9.28 14.27 -4.99 15.12
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 2 4 -2 6
MONTH TO DATE 20 61 -41 38
SINCE MAR 1 711 1028 -317 717
SINCE JUL 1 4033 4538 -505 3681
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 29 20 9 42
SINCE MAR 1 76 42 34 86
SINCE JAN 1 76 42 34 89
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 43 10:00 AM
AVERAGE 70
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 92 2000
MINIMUM TEMPERATURE (F) 52 32 1976
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 6:00 AM EDT SUNSET 8:13 PM EDT
MAY 13 2025...........SUNRISE 5:59 AM EDT SUNSET 8:14 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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