Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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793
CDUS41 KLWX 192126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT THU SEP 19 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 19 2024...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 2:22 PM 93 1977 78 4 77
1978
MINIMUM 68 5:46 AM 36 1984 57 11 54
AVERAGE 75 68 7 66
PRECIPITATION (IN)
TODAY 0.00 1.26 2000 0.14 -0.14 0.00
MONTH TO DATE 0.61 2.47 -1.86 3.61
SINCE SEP 1 0.61 2.47 -1.86 3.61
SINCE JAN 1 26.39 31.69 -5.30 22.83
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 MM 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
TODAY 0 2 -2 0
MONTH TO DATE 11 12 -1 1
SINCE SEP 1 11 12 -1 1
SINCE JUL 1 13 13 0 1
COOLING
TODAY 10 4 6 1
MONTH TO DATE 77 120 -43 205
SINCE SEP 1 77 120 -43 205
SINCE JAN 1 1491 1176 315 1320
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 12:00 AM
LOWEST 56 1:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 91 1965
MINIMUM TEMPERATURE (F) 56 40 1979
SUNRISE AND SUNSET
SEPTEMBER 19 2024.....SUNRISE 6:55 AM EDT SUNSET 7:11 PM EDT
SEPTEMBER 20 2024.....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.
$$