656
CDUS41 KLWX 202124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT WED SEP 20 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 20 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 80 3:23 PM 91 1965 78 2 84
MINIMUM 49 4:30 AM 40 1979 56 -7 60
AVERAGE 65 67 -2 72
PRECIPITATION (IN)
TODAY 0.00 0.87 1966 0.14 -0.14 T
MONTH TO DATE 3.61 2.61 1.00 2.78
SINCE SEP 1 3.61 2.61 1.00 2.78
SINCE JAN 1 22.83 31.83 -9.00 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 2 -2 0
MONTH TO DATE 1 14 -13 0
SINCE SEP 1 1 14 -13 0
SINCE JUL 1 1 15 -14 0
COOLING
TODAY 0 4 -4 7
MONTH TO DATE 205 124 81 166
SINCE SEP 1 205 124 81 166
SINCE JAN 1 1320 1180 140 1344
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 1.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1:00 AM
LOWEST 36 3:00 PM
AVERAGE 63
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 92 1965
1998
MINIMUM TEMPERATURE (F) 56 33 1962
SUNRISE AND SUNSET
SEPTEMBER 20 2023.....SUNRISE 6:55 AM EDT SUNSET 7:10 PM EDT
SEPTEMBER 21 2023.....SUNRISE 6:56 AM EDT SUNSET 7:09 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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