863
CDUS41 KLWX 172124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT TUE MAR 17 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MARCH 17 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 40 3:27 PM 77 1963 55 -15 58
MINIMUM 30 7:03 AM 16 1970 34 -4 39
AVERAGE 35 44 -9 49
PRECIPITATION (IN)
TODAY 0.00 1.14 1993 0.12 -0.12 0.01
MONTH TO DATE 2.21 1.87 0.34 0.64
SINCE MAR 1 2.21 1.87 0.34 0.64
SINCE JAN 1 8.01 7.42 0.59 5.06
SNOWFALL (IN)
TODAY T 4.5 2014 0.1 -0.1 0.0
MONTH TO DATE 1.0 2.8 -1.8 0.0
SINCE MAR 1 1.0 2.8 -1.8 0.0
SINCE JUL 1 13.6 19.8 -6.2 15.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 30 21 9 16
MONTH TO DATE 264 394 -130 300
SINCE MAR 1 264 394 -130 300
SINCE JUL 1 3893 3904 -11 3622
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 29 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 15.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 1:00 AM
LOWEST 35 4:00 PM
AVERAGE 51
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 80 1989
MINIMUM TEMPERATURE (F) 34 13 1976
SUNRISE AND SUNSET
MARCH 17 2026.........SUNRISE 7:18 AM EDT SUNSET 7:19 PM EDT
MARCH 18 2026.........SUNRISE 7:16 AM EDT SUNSET 7:20 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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