National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2022-12-13 05:21 UTC
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261
CDUS41 KLWX 130521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST TUE DEC 13 2022
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 12 2022...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2022
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 43 4:48 AM 72 1979 47 -4 51
MINIMUM 37 12:25 AM 9 1988 30 7 28
AVERAGE 40 38 2 40
PRECIPITATION (IN)
YESTERDAY 0.00 0.95 1964 0.11 -0.11 0.00
MONTH TO DATE 0.40 1.37 -0.97 0.05
SINCE DEC 1 0.40 1.37 -0.97 0.05
SINCE JAN 1 36.21 41.31 -5.10 34.55
SNOWFALL (IN)
YESTERDAY 0.0 10.6 1982 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.9 -0.9 0.0
SINCE DEC 1 0.0 0.9 -0.9 0.0
SINCE JUL 1 T 1.2 -1.2 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 27 -2 25
MONTH TO DATE 283 303 -20 244
SINCE DEC 1 283 303 -20 244
SINCE JUL 1 1117 1203 -86 970
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1376 1231 145 1480
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 10.3
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 12:00 AM
LOWEST 53 7:00 AM
AVERAGE 68
..........................................................
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 2022......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
DECEMBER 14 2022......SUNRISE 7:21 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.
$$