232
CDUS41 KLWX 140521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST THU DEC 14 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 13 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 50 3:20 PM 73 2015 47 3 44
MINIMUM 28 11:46 PM 7 1988 29 -1 23
AVERAGE 39 38 1 34
PRECIPITATION (IN)
YESTERDAY 0.00 1.47 1996 0.11 -0.11 0.00
MONTH TO DATE 2.46 1.48 0.98 0.40
SINCE DEC 1 2.46 1.48 0.98 0.40
SINCE JAN 1 31.49 41.42 -9.93 36.21
SNOWFALL (IN)
YESTERDAY 0.0 8.8 1966 0.1 -0.1 0.0
MONTH TO DATE 0.5 1.0 -0.5 0.0
SINCE DEC 1 0.5 1.0 -0.5 0.0
SINCE JUL 1 0.5 1.3 -0.8 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 26 27 -1 31
MONTH TO DATE 280 330 -50 314
SINCE DEC 1 280 330 -50 314
SINCE JUL 1 1051 1230 -179 1148
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 18 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 5:00 AM
LOWEST 27 4:00 PM
AVERAGE 55
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 69 2015
MINIMUM TEMPERATURE (F) 29 3 1989
SUNRISE AND SUNSET
DECEMBER 14 2023......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
DECEMBER 15 2023......SUNRISE 7:21 AM EST SUNSET 4:49 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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