Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 092129
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
529 PM EDT MON SEP 09 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 9 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 78 3:22 PM 98 2016 82 -4 90
MINIMUM 43 5:57 AM 40 1986 61 -18 68
AVERAGE 61 71 -10 79
PRECIPITATION (IN)
TODAY 0.00 1.40 2018 0.13 -0.13 0.81
MONTH TO DATE T 1.10 -1.10 1.24
SINCE SEP 1 T 1.10 -1.10 1.24
SINCE JAN 1 25.78 30.32 -4.54 20.46
SNOWFALL (IN)
TODAY 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
TODAY 4 0 4 0
MONTH TO DATE 11 0 11 0
SINCE SEP 1 11 0 11 0
SINCE JUL 1 13 1 12 0
COOLING
TODAY 0 7 -7 14
MONTH TO DATE 21 68 -47 140
SINCE SEP 1 21 68 -47 140
SINCE JAN 1 1435 1124 311 1255
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 3.0
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 5:00 AM
LOWEST 28 2:00 PM
AVERAGE 61
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1983
MINIMUM TEMPERATURE (F) 60 43 1981
SUNRISE AND SUNSET
SEPTEMBER 9 2024.....SUNRISE 6:46 AM EDT SUNSET 7:27 PM EDT
SEPTEMBER 10 2024.....SUNRISE 6:47 AM EDT SUNSET 7:25 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$