948
CDUS41 KLWX 010627
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT THU MAY 01 2025
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 30 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 83 4:07 PM 88 2024 72 11 88
MINIMUM 62 11:59 PM 29 1977 48 14 61
AVERAGE 73 60 13 75
PRECIPITATION (IN)
YESTERDAY 0.09 3.99 2014 0.13 -0.04 0.14
MONTH TO DATE 2.01 3.47 -1.46 1.74
SINCE MAR 1 3.43 6.97 -3.54 5.63
SINCE JAN 1 7.85 12.52 -4.67 13.08
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
2002
MONTH TO DATE 0.0 0.1 -0.1 T
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 0 6 -6 0
MONTH TO DATE 241 320 -79 215
SINCE MAR 1 691 967 -276 679
SINCE JUL 1 4013 4477 -464 3643
COOLING
YESTERDAY 8 1 7 10
MONTH TO DATE 30 20 10 44
SINCE MAR 1 47 22 25 44
SINCE JAN 1 47 22 25 47
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 35 5:00 PM
AVERAGE 66
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 90 2010
MINIMUM TEMPERATURE (F) 48 33 1996
SUNRISE AND SUNSET
MAY 1 2025...........SUNRISE 6:12 AM EDT SUNSET 8:03 PM EDT
MAY 2 2025...........SUNRISE 6:10 AM EDT SUNSET 8:04 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page