Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 220534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 AM EDT SUN SEP 22 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 21 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 83 3:02 PM 92 1965 77 6 81
1998
MINIMUM 65 5:35 AM 33 1962 56 9 54
AVERAGE 74 67 7 68
PRECIPITATION (IN)
YESTERDAY 0.01 2.59 1979 0.13 -0.12 0.00
MONTH TO DATE 0.62 2.74 -2.12 3.61
SINCE SEP 1 0.62 2.74 -2.12 3.61
SINCE JAN 1 26.40 31.96 -5.56 22.83
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 T
SINCE SEP 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 11 16 -5 1
SINCE SEP 1 11 16 -5 1
SINCE JUL 1 13 17 -4 1
COOLING
YESTERDAY 9 4 5 3
MONTH TO DATE 93 128 -35 208
SINCE SEP 1 93 128 -35 208
SINCE JAN 1 1507 1184 323 1323
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 11:00 PM
LOWEST 62 1:00 PM
AVERAGE 78
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 94 1970
1980
2010
MINIMUM TEMPERATURE (F) 56 35 1962
SUNRISE AND SUNSET
SEPTEMBER 22 2024.....SUNRISE 6:58 AM EDT SUNSET 7:06 PM EDT
SEPTEMBER 23 2024.....SUNRISE 6:59 AM EDT SUNSET 7:04 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$