831
CDUS41 KLWX 172131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
531 PM EDT MON JUL 17 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 17 2023
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 90 3:59 PM 100 1988 88 2 85
1997
MINIMUM 68 5:35 AM 55 1976 67 1 70
2014
AVERAGE 79 78 1 78
PRECIPITATION (IN)
TODAY 0.00 1.11 2018 0.14 -0.14 0.17
MONTH TO DATE 3.44 2.32 1.12 3.98
SINCE JUN 1 5.74 6.62 -0.88 6.73
SINCE JAN 1 15.72 23.86 -8.14 23.95
SNOWFALL (IN)
TODAY 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
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 5 13 -8 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 14 12 2 13
MONTH TO DATE 269 202 67 208
SINCE JUN 1 451 440 11 445
SINCE JAN 1 525 546 -21 574
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 2.6
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 44 3:00 PM
AVERAGE 69
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2012
MINIMUM TEMPERATURE (F) 67 51 1985
SUNRISE AND SUNSET
JULY 17 2023..........SUNRISE 5:58 AM EDT SUNSET 8:34 PM EDT
JULY 18 2023..........SUNRISE 5:59 AM EDT SUNSET 8:33 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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