National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-12-04 05:22 UTC
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611
CDUS41 KLWX 040522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1222 AM EST FRI DEC 04 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 3 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 53 2:34 PM 74 1998 50 3 47
MINIMUM 25 7:20 AM 7 1976 30 -5 33
AVERAGE 39 40 -1 40
PRECIPITATION (IN)
YESTERDAY 0.00 1.14 1967 0.11 -0.11 0.00
MONTH TO DATE 0.01 0.33 -0.32 0.40
SINCE DEC 1 0.01 0.33 -0.32 0.40
SINCE JAN 1 43.66 38.91 4.75 38.24
SNOWFALL (IN)
YESTERDAY 0.0 T 1983 0.0 0.0 0.0
1989
2005
MONTH TO DATE 0.0 0.2 -0.2 T
SINCE DEC 1 0.0 0.2 -0.2 T
SINCE JUL 1 0.0 0.7 -0.7 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 26 25 1 25
MONTH TO DATE 72 73 -1 74
SINCE DEC 1 72 73 -1 74
SINCE JUL 1 739 989 -250 937
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 12 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 2.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 7:00 AM
LOWEST 27 3:00 PM
AVERAGE 54
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 75 1998
MINIMUM TEMPERATURE (F) 30 10 1966
SUNRISE AND SUNSET
DECEMBER 4 2020......SUNRISE 7:13 AM EST SUNSET 4:47 PM EST
DECEMBER 5 2020......SUNRISE 7:14 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.
$$