National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2005-12-21 05:32 UTC
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000
CDUS41 KLWX 210533
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1232 AM EST WED DEC 21 2005
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 20 2005...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 39 248 PM 64 1988 45 -6 22
MINIMUM 17 743 AM 8 1991 25 -8 10
AVERAGE 28 35 -7 16
PRECIPITATION (IN)
YESTERDAY 0.00 0.66 1973 0.10 -0.10 0.00
MONTH TO DATE 2.14 2.00 0.14 1.70
SINCE DEC 1 2.14 2.00 0.14 1.70
SINCE JAN 1 43.77 40.73 3.04 37.40
SNOWFALL (IN)
YESTERDAY 0.0 4.3 1966 0.1 -0.1 0.0
MONTH TO DATE 5.7 1.1 4.6 T
SINCE DEC 1 5.7 1.1 4.6 T
SINCE JUL 1 6.0 2.0 4.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 37 30 7 49
MONTH TO DATE 672 543 129 501
SINCE DEC 1 672 543 129 501
SINCE JUL 1 1411 1520 -109 1306
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1373 1075 298 1201
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 200 AM
LOWEST 23 1200 PM
AVERAGE 43
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 60 1971
MINIMUM TEMPERATURE (F) 25 4 1989
SUNRISE AND SUNSET
DECEMBER 21 2005......SUNRISE 725 AM EST SUNSET 451 PM EST
DECEMBER 22 2005......SUNRISE 725 AM EST SUNSET 452 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$