National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-18 05:17 UTC
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000
CDUS41 KLWX 180517
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1217 AM EST TUE DEC 18 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 17 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 39 201 PM 70 1984 45 -6 66
MINIMUM 27 1159 PM 3 1989 26 1 29
AVERAGE 33 35 -2 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.75 2000 0.10 -0.10 0.00
MONTH TO DATE 2.05 1.70 0.35 0.16
SINCE DEC 1 2.05 1.70 0.35 0.16
SINCE JAN 1 27.08 40.43 -13.35 44.40
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 0.8 1.7
SINCE JUL 1 2.5 1.7 0.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 32 29 3 17
MONTH TO DATE 461 455 6 403
SINCE DEC 1 461 455 6 403
SINCE JUL 1 1190 1432 -242 1264
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 32 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 14.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 58 900 PM
LOWEST 40 200 PM
AVERAGE 49
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 76 2006
MINIMUM TEMPERATURE (F) 25 3 1989
SUNRISE AND SUNSET
DECEMBER 18 2007......SUNRISE 723 AM EST SUNSET 450 PM EST
DECEMBER 19 2007......SUNRISE 724 AM EST SUNSET 450 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$