National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-08 05:18 UTC
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000
CDUS41 KLWX 080519
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1218 AM EST SAT DEC 8 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 7 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 34 1140 PM 77 1998 48 -14 54
MINIMUM 15 1220 AM 1 2002 28 -13 23
AVERAGE 25 38 -13 39
PRECIPITATION (IN)
YESTERDAY 0.04 1.13 1976 0.10 -0.06 T
MONTH TO DATE 0.58 0.70 -0.12 0.02
SINCE DEC 1 0.58 0.70 -0.12 0.02
SINCE JAN 1 25.61 39.43 -13.82 44.26
SNOWFALL (IN)
YESTERDAY T T 0.0
MONTH TO DATE 2.5 T 2.5
SINCE JUL 1 2.5 0.9 1.6
SNOW DEPTH 2
DEGREE DAYS
HEATING
YESTERDAY 40 26 14 26
MONTH TO DATE 230 177 53 180
SINCE DEC 1 230 177 53 180
SINCE JUL 1 959 1154 -195 1041
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 14 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)
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
LT FREEZING RAIN
SLEET
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1100 PM
LOWEST 68 400 AM
AVERAGE 79
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 76 1980
MINIMUM TEMPERATURE (F) 28 13 2002
SUNRISE AND SUNSET
DECEMBER 8 2007......SUNRISE 716 AM EST SUNSET 447 PM EST
DECEMBER 9 2007......SUNRISE 717 AM EST SUNSET 447 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$