Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 042121
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
521 PM EDT WED SEP 04 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 4 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 77 3:43 PM 99 2023 83 -6 99
MINIMUM 51 3:31 AM 48 1997 62 -11 70
AVERAGE 64 73 -9 85
PRECIPITATION (IN)
TODAY 0.00 1.29 1996 0.12 -0.12 0.00
MONTH TO DATE 0.00 0.49 -0.49 0.00
SINCE SEP 1 0.00 0.49 -0.49 0.00
SINCE JAN 1 25.78 29.71 -3.93 19.22
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 1 0 1 0
MONTH TO DATE 2 0 2 0
SINCE SEP 1 2 0 2 0
SINCE JUL 1 4 1 3 0
COOLING
TODAY 0 8 -8 20
MONTH TO DATE 15 32 -17 49
SINCE SEP 1 15 32 -17 49
SINCE JAN 1 1429 1088 341 1164
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 4:00 AM
LOWEST 39 3:00 PM
AVERAGE 64
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 2023
MINIMUM TEMPERATURE (F) 62 42 1997
SUNRISE AND SUNSET
SEPTEMBER 4 2024.....SUNRISE 6:42 AM EDT SUNSET 7:35 PM EDT
SEPTEMBER 5 2024.....SUNRISE 6:43 AM EDT SUNSET 7:33 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$