National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-31 05:20 UTC
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000
CDUS41 KLWX 310521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1220 AM EST MON DEC 31 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 30 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 43 147 PM 67 1990 42 1 52
MINIMUM 32 555 AM 4 1963 23 9 29
AVERAGE 38 33 5 41
PRECIPITATION (IN)
YESTERDAY 0.18 0.87 1969 0.10 0.08 0.00
MONTH TO DATE 2.97 2.97 0.00 1.66
SINCE DEC 1 2.97 2.97 0.00 1.66
SINCE JAN 1 28.00 41.70 -13.70 45.90
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 2.1 0.4
SINCE JUL 1 2.5 3.0 -0.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 27 32 -5 24
MONTH TO DATE 793 852 -59 682
SINCE DEC 1 793 852 -59 682
SINCE JUL 1 1522 1829 -307 1543
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 13 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 3.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 600 AM
LOWEST 73 100 AM
AVERAGE 83
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 73 1992
MINIMUM TEMPERATURE (F) 23 1 1993
SUNRISE AND SUNSET
DECEMBER 31 2007......SUNRISE 728 AM EST SUNSET 457 PM EST
JANUARY 1 2008.......SUNRISE 729 AM EST SUNSET 458 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$