National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2002-08-18 05:31 UTC
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727
CDUS41 KLWX 180534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
131 AM EDT SUN AUG 18 2002
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR AUGUST 17 2002...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2002
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 93 200 PM 101 1988 86 7 87
MINIMUM 74 1034 PM 44 1979 63 11 68
AVERAGE 84 74 10 78
PRECIPITATION (IN)
YESTERDAY T 3.32 1997 0.12 -0.12 0.16
MONTH TO DATE 0.36 2.02 -1.66 2.35
SINCE JUN 1 6.62 9.66 -3.04 11.37
SINCE JAN 1 19.99 26.47 -6.48 27.78
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 2 22 -20 18
SINCE JUL 1 0 1 -1 5
COOLING
YESTERDAY 19 10 9 13
MONTH TO DATE 251 181 70 229
SINCE JUN 1 874 729 145 710
SINCE JAN 1 1002 804 198 777
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 200 AM
LOWEST 44 100 PM
AVERAGE 63
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 95 1991
MINIMUM TEMPERATURE (F) 63 45 1981
SUNRISE AND SUNSET
AUGUST 18 2002........SUNRISE 626 AM EDT SUNSET 801 PM EDT
AUGUST 19 2002........SUNRISE 627 AM EDT SUNSET 759 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.