National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-19 05:26 UTC
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000
CDUS41 KLWX 190527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1226 AM EST WED DEC 19 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 18 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 41 348 PM 76 2006 45 -4 76
MINIMUM 20 736 AM 3 1989 25 -5 46
AVERAGE 31 35 -4 61
PRECIPITATION (IN)
YESTERDAY 0.00 2.92 1977 0.10 -0.10 0.00
MONTH TO DATE 2.05 1.80 0.25 0.16
SINCE DEC 1 2.05 1.80 0.25 0.16
SINCE JAN 1 27.08 40.53 -13.45 44.40
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 0.9 1.6
SINCE JUL 1 2.5 1.8 0.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 34 29 5 4
MONTH TO DATE 495 484 11 407
SINCE DEC 1 495 484 11 407
SINCE JUL 1 1224 1461 -237 1268
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 12 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 5.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 700 AM
LOWEST 37 200 PM
AVERAGE 57
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 63 1967
MINIMUM TEMPERATURE (F) 25 -2 1989
SUNRISE AND SUNSET
DECEMBER 19 2007......SUNRISE 724 AM EST SUNSET 450 PM EST
DECEMBER 20 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.
$$