866
CDUS41 KLWX 130622
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
222 AM EDT MON JUL 13 2026
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 12 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 85 2:24 PM 97 1986 88 -3 90
MINIMUM 66 11:59 PM 47 2002 67 -1 72
AVERAGE 76 77 -1 81
PRECIPITATION (IN)
YESTERDAY 0.23 2.61 1990 0.13 0.10 0.02
MONTH TO DATE 3.69 1.62 2.07 1.19
SINCE JUN 1 7.98 5.92 2.06 8.12
SINCE JAN 1 22.90 23.16 -0.26 22.04
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 MM
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 11 12 -1 16
MONTH TO DATE 198 142 56 172
SINCE JUN 1 476 380 96 493
SINCE JAN 1 649 486 163 611
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 69 11:00 AM
AVERAGE 83
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 97 1966
1986
MINIMUM TEMPERATURE (F) 67 52 1978
SUNRISE AND SUNSET
JULY 13 2026..........SUNRISE 5:55 AM EDT SUNSET 8:36 PM EDT
JULY 14 2026..........SUNRISE 5:56 AM EDT SUNSET 8:35 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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