National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2022-12-18 05:22 UTC
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628
CDUS41 KLWX 180522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1222 AM EST SUN DEC 18 2022
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 17 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 47 3:12 PM 70 1984 46 1 63
MINIMUM 32 4:43 AM 3 1989 29 3 53
AVERAGE 40 37 3 58
PRECIPITATION (IN)
YESTERDAY 0.00 0.75 2000 0.10 -0.10 T
MONTH TO DATE 2.34 1.91 0.43 0.05
SINCE DEC 1 2.34 1.91 0.43 0.05
SINCE JAN 1 38.15 41.85 -3.70 34.55
SNOWFALL (IN)
YESTERDAY 0.0 4.3 1973 0.1 -0.1 0.0
MONTH TO DATE 0.0 1.4 -1.4 0.0
SINCE DEC 1 0.0 1.4 -1.4 0.0
SINCE JUL 1 T 1.7 -1.7 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 28 -3 7
MONTH TO DATE 424 439 -15 331
SINCE DEC 1 424 439 -15 331
SINCE JUL 1 1258 1339 -81 1057
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 14 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 2:00 AM
LOWEST 37 2:00 PM
AVERAGE 60
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 76 2006
MINIMUM TEMPERATURE (F) 29 3 1989
SUNRISE AND SUNSET
DECEMBER 18 2022......SUNRISE 7:23 AM EST SUNSET 4:50 PM EST
DECEMBER 19 2022......SUNRISE 7:24 AM EST SUNSET 4:50 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$