624
CDUS41 KLWX 182123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT WED MAR 18 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 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 41 3:59 PM 80 1989 55 -14 67
MINIMUM 23 4:58 AM 13 1976 34 -11 39
AVERAGE 32 45 -13 53
PRECIPITATION (IN)
TODAY 0.00 1.16 1998 0.12 -0.12 0.00
MONTH TO DATE 2.21 1.99 0.22 0.64
SINCE MAR 1 2.21 1.99 0.22 0.64
SINCE JAN 1 8.01 7.54 0.47 5.06
SNOWFALL (IN)
TODAY 0.0 1.5 1994 0.1 -0.1 0.0
MONTH TO DATE 1.0 2.9 -1.9 0.0
SINCE MAR 1 1.0 2.9 -1.9 0.0
SINCE JUL 1 13.6 19.9 -6.3 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 33 20 13 12
MONTH TO DATE 298 414 -116 312
SINCE MAR 1 298 414 -116 312
SINCE JUL 1 3927 3924 3 3634
COOLING
TODAY 0 0 0 0
MONTH TO DATE 8 0 8 1
SINCE MAR 1 8 0 8 1
SINCE JAN 1 8 0 8 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 4:00 AM
LOWEST 30 3:00 PM
AVERAGE 45
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 76 2012
2022
MINIMUM TEMPERATURE (F) 34 10 1967
SUNRISE AND SUNSET
MARCH 18 2026.........SUNRISE 7:16 AM EDT SUNSET 7:20 PM EDT
MARCH 19 2026.........SUNRISE 7:15 AM EDT SUNSET 7:21 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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