288
CDUS41 KLWX 182126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT SAT APR 18 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 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 84 3:04 PM 90 1976 68 16 80
MINIMUM 51 5:30 AM 29 2018 44 7 41
AVERAGE 68 56 12 61
PRECIPITATION (IN)
TODAY 0.00 0.59 1978 0.11 -0.11 0.00
MONTH TO DATE 0.72 1.98 -1.26 1.37
SINCE MAR 1 3.57 5.48 -1.91 2.79
SINCE JAN 1 9.37 11.03 -1.66 7.21
SNOWFALL (IN)
TODAY 0.0 T 2022 0.0 0.0 0.0
MONTH TO DATE 0.0 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 0 10 -10 4
MONTH TO DATE 93 226 -133 217
SINCE MAR 1 535 873 -338 667
SINCE JUL 1 4164 4383 -219 3989
COOLING
TODAY 3 1 2 0
MONTH TO DATE 61 7 54 2
SINCE MAR 1 77 9 68 19
SINCE JAN 1 77 9 68 19
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 38 2:00 PM
AVERAGE 68
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 91 2002
MINIMUM TEMPERATURE (F) 44 27 1990
2001
SUNRISE AND SUNSET
APRIL 18 2026.........SUNRISE 6:29 AM EDT SUNSET 7:50 PM EDT
APRIL 19 2026.........SUNRISE 6:27 AM EDT SUNSET 7:51 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