532
CDUS41 KLWX 212122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT TUE APR 21 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 21 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 63 3:57 PM 89 1985 69 -6 76
MINIMUM 27R 5:51 AM 29 1983 45 -18 56
AVERAGE 45 57 -12 66
PRECIPITATION (IN)
TODAY 0.00 2.20 1992 0.12 -0.12 T
MONTH TO DATE 0.92 2.33 -1.41 1.37
SINCE MAR 1 3.77 5.83 -2.06 2.79
SINCE JAN 1 9.57 11.38 -1.81 7.21
SNOWFALL (IN)
TODAY 0.0 0.0 2001 0.0 0.0 0.0
MONTH TO DATE T 0.1 -0.1 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
TODAY 20 9 11 0
MONTH TO DATE 146 253 -107 217
SINCE MAR 1 588 900 -312 667
SINCE JUL 1 4217 4410 -193 3989
COOLING
TODAY 0 1 -1 1
MONTH TO DATE 61 10 51 15
SINCE MAR 1 77 12 65 32
SINCE JAN 1 77 12 65 32
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 3.2
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 6:00 AM
LOWEST 23 3:00 PM
AVERAGE 54
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 92 1985
MINIMUM TEMPERATURE (F) 45 27 1975
SUNRISE AND SUNSET
APRIL 21 2026.........SUNRISE 6:25 AM EDT SUNSET 7:53 PM EDT
APRIL 22 2026.........SUNRISE 6:23 AM EDT SUNSET 7:54 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