900
CDUS41 KLWX 280525
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST THU DEC 28 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 27 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 56 3:40 PM 73 1971 44 12 44
MINIMUM 47 5:56 AM 1 1989 27 20 22
AVERAGE 52 36 16 33
PRECIPITATION (IN)
YESTERDAY 0.71 1.04 1964 0.10 0.61 0.00
MONTH TO DATE 5.74 2.93 2.81 4.70
SINCE DEC 1 5.74 2.93 2.81 4.70
SINCE JAN 1 34.77 42.87 -8.10 40.51
SNOWFALL (IN)
YESTERDAY 0.0 4.4 1990 0.1 -0.1 0.0
MONTH TO DATE 0.5 2.3 -1.8 T
SINCE DEC 1 0.5 2.3 -1.8 T
SINCE JUL 1 0.5 2.6 -2.1 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 13 30 -17 32
MONTH TO DATE 600 726 -126 780
SINCE DEC 1 600 726 -126 780
SINCE JUL 1 1371 1626 -255 1614
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 14 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 PM
LOWEST 89 4:00 AM
AVERAGE 93
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 73 1984
MINIMUM TEMPERATURE (F) 27 8 1966
SUNRISE AND SUNSET
DECEMBER 28 2023......SUNRISE 7:28 AM EST SUNSET 4:55 PM EST
DECEMBER 29 2023......SUNRISE 7:28 AM EST SUNSET 4:56 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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