National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-08-21 05:20 UTC
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000
CDUS41 KLWX 210521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
120 AM EDT TUE AUG 21 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR AUGUST 20 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 71 518 PM 104 1983 85 -14 93
MINIMUM 62 540 AM 47 1976 62 0 72
AVERAGE 67 74 -7 83
PRECIPITATION (IN)
YESTERDAY 0.56 2.17 1963 0.12 0.44 T
MONTH TO DATE 1.00 2.38 -1.38 1.19
SINCE JUN 1 5.67 10.02 -4.35 15.43
SINCE JAN 1 16.97 26.83 -9.86 26.94
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 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 3 22 -19 4
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 2 9 -7 18
MONTH TO DATE 305 210 95 263
SINCE JUN 1 985 758 227 931
SINCE JAN 1 1136 833 303 1013
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 73 1200 PM
AVERAGE 82
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 94 2005
MINIMUM TEMPERATURE (F) 62 47 1976
SUNRISE AND SUNSET
AUGUST 21 2007........SUNRISE 628 AM EDT SUNSET 757 PM EDT
AUGUST 22 2007........SUNRISE 629 AM EDT SUNSET 755 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$