National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-12-07 05:24 UTC
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055
CDUS41 KLWX 070524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST MON DEC 07 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 6 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 45 1:35 PM 79 1998 49 -4 50
MINIMUM 31 11:42 PM 9 2002 29 2 31
AVERAGE 38 39 -1 41
PRECIPITATION (IN)
YESTERDAY 0.00 1.03 2016 0.11 -0.11 T
MONTH TO DATE 0.99 0.66 0.33 0.46
SINCE DEC 1 0.99 0.66 0.33 0.46
SINCE JAN 1 44.64 39.24 5.40 38.30
SNOWFALL (IN)
YESTERDAY 0.0 1.0 2003 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.5 -0.5 T
SINCE DEC 1 0.0 0.5 -0.5 T
SINCE JUL 1 0.0 1.0 -1.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 27 26 1 24
MONTH TO DATE 137 150 -13 150
SINCE DEC 1 137 150 -13 150
SINCE JUL 1 804 1066 -262 1013
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1406 1178 228 1524
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 9:00 PM
LOWEST 47 2:00 PM
AVERAGE 56
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 49 77 1998
MINIMUM TEMPERATURE (F) 29 1 2002
SUNRISE AND SUNSET
DECEMBER 7 2020......SUNRISE 7:15 AM EST SUNSET 4:47 PM EST
DECEMBER 8 2020......SUNRISE 7:16 AM EST SUNSET 4:47 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$