Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 092131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
531 PM EDT THU MAY 09 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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 74 2:57 PM 91 1963 74 0 68
MINIMUM 60 2:13 AM 30 1976 51 9 49
AVERAGE 67 62 5 59
PRECIPITATION (IN)
TODAY T 0.93 1974 0.15 -0.15 0.14
MONTH TO DATE 1.50 1.29 0.21 0.66
SINCE MAR 1 7.13 8.26 -1.13 5.53
SINCE JAN 1 14.58 13.81 0.77 9.16
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 MAR 1 T 4.0 -4.0 T
SINCE JUL 1 11.7 21.0 -9.3 0.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 5 -5 6
MONTH TO DATE 15 49 -34 75
SINCE MAR 1 694 1016 -322 858
SINCE JUL 1 3658 4526 -868 3822
COOLING
TODAY 2 2 0 0
MONTH TO DATE 42 14 28 5
SINCE MAR 1 86 36 50 50
SINCE JAN 1 89 36 53 50
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 2:00 AM
LOWEST 53 10:00 AM
AVERAGE 67
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 1963
MINIMUM TEMPERATURE (F) 51 31 1966
1983
SUNRISE AND SUNSET
MAY 9 2024...........SUNRISE 6:02 AM EDT SUNSET 8:11 PM EDT
MAY 10 2024...........SUNRISE 6:01 AM EDT SUNSET 8:12 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$