125
CDUS41 KLWX 310534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 AM EDT MON JUL 31 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 30 2023
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)
YESTERDAY
MAXIMUM 88 2:55 PM 98 1988 88 0 87
MINIMUM 70 5:04 AM 48 2014 67 3 68
AVERAGE 79 77 2 78
PRECIPITATION (IN)
YESTERDAY 0.00 1.29 2018 0.13 -0.13 0.00
MONTH TO DATE 5.00 4.02 0.98 5.07
SINCE JUN 1 7.30 8.32 -1.02 7.82
SINCE JAN 1 17.28 25.56 -8.28 25.04
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 0
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 14 12 2 13
MONTH TO DATE 464 358 106 407
SINCE JUN 1 646 596 50 644
SINCE JAN 1 720 702 18 773
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 5:00 AM
LOWEST 35 5:00 PM
AVERAGE 57
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1999
MINIMUM TEMPERATURE (F) 67 50 1997
SUNRISE AND SUNSET
JULY 31 2023..........SUNRISE 6:10 AM EDT SUNSET 8:22 PM EDT
AUGUST 1 2023........SUNRISE 6:11 AM EDT SUNSET 8:21 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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