565
CDUS41 KLWX 130523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 AM EST WED DEC 13 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 12 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 49 2:51 PM 72 1979 47 2 43
MINIMUM 23 7:15 AM 9 1988 30 -7 37
AVERAGE 36 38 -2 40
PRECIPITATION (IN)
YESTERDAY 0.00 0.95 1964 0.11 -0.11 0.00
MONTH TO DATE 2.46 1.37 1.09 0.40
SINCE DEC 1 2.46 1.37 1.09 0.40
SINCE JAN 1 31.49 41.31 -9.82 36.21
SNOWFALL (IN)
YESTERDAY 0.0 10.6 1982 0.1 -0.1 0.0
MONTH TO DATE 0.5 0.9 -0.4 0.0
SINCE DEC 1 0.5 0.9 -0.4 0.0
SINCE JUL 1 0.5 1.2 -0.7 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 29 27 2 25
MONTH TO DATE 254 303 -49 283
SINCE DEC 1 254 303 -49 283
SINCE JUL 1 1025 1203 -178 1117
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1380 1231 149 1376
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WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 6:00 AM
LOWEST 39 2:00 PM
AVERAGE 62
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 73 2015
MINIMUM TEMPERATURE (F) 29 7 1988
SUNRISE AND SUNSET
DECEMBER 13 2023......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
DECEMBER 14 2023......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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