National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-09-22 05:28 UTC
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000
CDUS41 KLWX 220528
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 AM EDT SAT SEP 22 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 21 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 86 331 PM 92 1998 77 9 68
1965
MINIMUM 56 623 AM 42 1991 54 2 43
AVERAGE 71 66 5 56
PRECIPITATION (IN)
YESTERDAY 0.00 2.59 1979 0.13 -0.13 0.00
MONTH TO DATE 0.81 2.73 -1.92 6.42
SINCE SEP 1 0.81 2.73 -1.92 6.42
SINCE JAN 1 18.45 30.96 -12.51 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 9
MONTH TO DATE 26 24 2 22
SINCE SEP 1 26 24 2 22
SINCE JUL 1 26 29 -3 22
COOLING
YESTERDAY 6 3 3 0
MONTH TO DATE 152 109 43 62
SINCE SEP 1 152 109 43 62
SINCE JAN 1 1417 1034 383 1223
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 4.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 36 1100 AM
AVERAGE 65
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 94 1980
1970
MINIMUM TEMPERATURE (F) 53 38 1997
1991
SUNRISE AND SUNSET
SEPTEMBER 22 2007.....SUNRISE 657 AM EDT SUNSET 707 PM EDT
SEPTEMBER 23 2007.....SUNRISE 658 AM EDT SUNSET 706 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$