508
CDUS41 KLWX 132122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT WED SEP 13 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 13 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 84 3:59 PM 94 1974 80 4 81
MINIMUM 69 6:38 AM 43 1985 59 10 65
AVERAGE 77 70 7 73
PRECIPITATION (IN)
TODAY 0.00 0.68 1983 0.13 -0.13 T
MONTH TO DATE 3.50 1.61 1.89 2.78
SINCE SEP 1 3.50 1.61 1.89 2.78
SINCE JAN 1 22.72 30.83 -8.11 30.28
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE T 0.0 0.0 0.0
SINCE SEP 1 T 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 0 4 -4 0
SINCE SEP 1 0 4 -4 0
SINCE JUL 1 0 5 -5 0
COOLING
TODAY 12 6 6 8
MONTH TO DATE 190 92 98 131
SINCE SEP 1 190 92 98 131
SINCE JAN 1 1305 1148 157 1309
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 12:00 AM
LOWEST 33 7:00 AM
AVERAGE 60
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1998
MINIMUM TEMPERATURE (F) 59 37 1985
SUNRISE AND SUNSET
SEPTEMBER 13 2023.....SUNRISE 6:49 AM EDT SUNSET 7:22 PM EDT
SEPTEMBER 14 2023.....SUNRISE 6:50 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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