Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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CDUS41 KLWX 180526
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT WED SEP 18 2024
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 17 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 79 12:29 PM 97 1991 79 0 74
MINIMUM 66 4:11 AM 35 1986 58 8 54
AVERAGE 73 68 5 64
PRECIPITATION (IN)
YESTERDAY 0.08 1.71 2004 0.14 -0.06 0.11
MONTH TO DATE 0.08 2.18 -2.10 3.61
SINCE SEP 1 0.08 2.18 -2.10 3.61
SINCE JAN 1 25.86 31.40 -5.54 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 1 -1 1
MONTH TO DATE 11 8 3 1
SINCE SEP 1 11 8 3 1
SINCE JUL 1 13 9 4 1
COOLING
YESTERDAY 8 5 3 0
MONTH TO DATE 61 112 -51 199
SINCE SEP 1 61 112 -51 199
SINCE JAN 1 1475 1168 307 1314
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 5:00 PM
LOWEST 64 11:00 AM
AVERAGE 79
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 91 1978
MINIMUM TEMPERATURE (F) 57 37 1990
SUNRISE AND SUNSET
SEPTEMBER 18 2024.....SUNRISE 6:54 AM EDT SUNSET 7:12 PM EDT
SEPTEMBER 19 2024.....SUNRISE 6:55 AM EDT SUNSET 7:11 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$