National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-09-23 05:20 UTC
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000
CDUS41 KLWX 230521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
120 AM EDT SUN SEP 23 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 22 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 89 427 PM 94 1980 77 12 70
1970
MINIMUM 71 1159 PM 38 1997 53 18 46
1991
AVERAGE 80 65 15 58
PRECIPITATION (IN)
YESTERDAY T 1.57 1982 0.13 -0.13 0.00
MONTH TO DATE 0.81 2.86 -2.05 6.42
SINCE SEP 1 0.81 2.86 -2.05 6.42
SINCE JAN 1 18.45 31.09 -12.64 33.41
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 3 -3 7
MONTH TO DATE 26 27 -1 29
SINCE SEP 1 26 27 -1 29
SINCE JUL 1 26 32 -6 29
COOLING
YESTERDAY 15 3 12 0
MONTH TO DATE 167 112 55 62
SINCE SEP 1 167 112 55 62
SINCE JAN 1 1432 1037 395 1223
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 43 400 PM
AVERAGE 67
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 93 2005
MINIMUM TEMPERATURE (F) 53 33 1983
SUNRISE AND SUNSET
SEPTEMBER 23 2007.....SUNRISE 658 AM EDT SUNSET 706 PM EDT
SEPTEMBER 24 2007.....SUNRISE 659 AM EDT SUNSET 704 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$