National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-15 05:50 UTC
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000
CDUS41 KLWX 150551
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1250 AM EST SAT DEC 15 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 14 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 52 234 PM 67 2001 46 6 63
MINIMUM 35 1159 PM 3 1989 26 9 34
AVERAGE 44 36 8 49
PRECIPITATION (IN)
YESTERDAY 0.00 0.96 1999 0.10 -0.10 0.00
MONTH TO DATE 1.07 1.40 -0.33 0.16
SINCE DEC 1 1.07 1.40 -0.33 0.16
SINCE JAN 1 26.10 40.13 -14.03 44.40
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 0.5 2.0
SINCE JUL 1 2.5 1.4 1.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 28 -7 16
MONTH TO DATE 371 369 2 351
SINCE DEC 1 371 369 2 351
SINCE JUL 1 1100 1346 -246 1212
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 17 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 42 400 PM
AVERAGE 71
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 71 1971
MINIMUM TEMPERATURE (F) 26 5 1989
SUNRISE AND SUNSET
DECEMBER 15 2007......SUNRISE 721 AM EST SUNSET 449 PM EST
DECEMBER 16 2007......SUNRISE 722 AM EST SUNSET 449 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$