National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-12-13 05:41 UTC
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000
CDUS41 KLWX 130542
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1241 AM EST MON DEC 13 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 12 2004...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 49 224 PM 72 1979 47 2 42
MINIMUM 39 454 AM 9 1988 27 12 25
AVERAGE 44 37 7 34
PRECIPITATION (IN)
YESTERDAY 0.00 0.95 1964 0.10 -0.10 0.00
MONTH TO DATE 1.69 1.20 0.49 2.94
SINCE DEC 1 1.69 1.20 0.49 2.94
SINCE JAN 1 37.39 39.93 -2.54 64.08
SNOWFALL (IN)
YESTERDAY 0.0 10.6 1982 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.3 -0.3 7.8
SINCE DEC 1 0.0 0.3 -0.3 7.8
SINCE JUL 1 0.0 1.2 -1.2 7.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 28 -7 31
MONTH TO DATE 240 313 -73 360
SINCE DEC 1 240 313 -73 360
SINCE JUL 1 1045 1290 -245 1186
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1201 1075 126 993
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 600 PM
LOWEST 46 100 PM
AVERAGE 58
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 71 1984
MINIMUM TEMPERATURE (F) 26 7 1988
SUNRISE AND SUNSET
DECEMBER 13 2004......SUNRISE 720 AM EST SUNSET 448 PM EST
DECEMBER 14 2004......SUNRISE 721 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.
$$