National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-12 05:33 UTC
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000
CDUS41 KLWX 120534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1233 AM EST WED DEC 12 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 11 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2007
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 51 1005 PM 71 1979 47 4 62
MINIMUM 43 544 AM 3 1968 27 16 29
AVERAGE 47 37 10 46
PRECIPITATION (IN)
YESTERDAY 0.01 1.09 2002 0.10 -0.09 0.00
MONTH TO DATE 1.04 1.10 -0.06 0.02
SINCE DEC 1 1.04 1.10 -0.06 0.02
SINCE JAN 1 26.07 39.83 -13.76 44.26
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 0.2 2.3
SINCE JUL 1 2.5 1.1 1.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 18 27 -9 19
MONTH TO DATE 314 285 29 298
SINCE DEC 1 314 285 29 298
SINCE JUL 1 1043 1262 -219 1159
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1593 1075 518 1256
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 PM
LOWEST 82 400 AM
AVERAGE 88
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 72 1979
MINIMUM TEMPERATURE (F) 27 9 1988
SUNRISE AND SUNSET
DECEMBER 12 2007......SUNRISE 719 AM EST SUNSET 448 PM EST
DECEMBER 13 2007......SUNRISE 720 AM EST SUNSET 448 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$