946
CDUS41 KLWX 190631
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 AM EDT SUN JUL 19 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 18 2026
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)
YESTERDAY
MAXIMUM 94 12:59 PM 101 2012 88 6 86
MINIMUM 73 3:54 PM 51 1985 67 6 74
AVERAGE 84 78 6 80
PRECIPITATION (IN)
YESTERDAY 0.77 1.66 2017 0.15 0.62 0.01
MONTH TO DATE 4.46 2.47 1.99 1.80
SINCE JUN 1 8.75 6.77 1.98 8.73
SINCE JAN 1 23.67 24.01 -0.34 22.65
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 19 12 7 15
MONTH TO DATE 293 214 79 268
SINCE JUN 1 571 452 119 589
SINCE JAN 1 744 558 186 707
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 6:00 PM
LOWEST 61 2:00 PM
AVERAGE 78
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1977
2020
MINIMUM TEMPERATURE (F) 67 53 1976
SUNRISE AND SUNSET
JULY 19 2026..........SUNRISE 6:00 AM EDT SUNSET 8:32 PM EDT
JULY 20 2026..........SUNRISE 6:01 AM EDT SUNSET 8:31 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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