National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-09-18 05:19 UTC
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000
CDUS41 KLWX 180520
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
119 AM EDT TUE SEP 18 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 17 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 72 408 PM 97 1991 79 -7 81
MINIMUM 44 424 AM 35 1986 56 -12 57
AVERAGE 58 67 -9 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.71 2004 0.13 -0.13 0.00
MONTH TO DATE 0.81 2.21 -1.40 6.42
SINCE SEP 1 0.81 2.21 -1.40 6.42
SINCE JAN 1 18.45 30.44 -11.99 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 7 2 5 0
MONTH TO DATE 22 14 8 5
SINCE SEP 1 22 14 8 5
SINCE JUL 1 22 19 3 5
COOLING
YESTERDAY 0 4 -4 4
MONTH TO DATE 146 94 52 52
SINCE SEP 1 146 94 52 52
SINCE JAN 1 1411 1019 392 1213
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 500 AM
LOWEST 35 200 PM
AVERAGE 61
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 91 1978
MINIMUM TEMPERATURE (F) 55 37 1990
SUNRISE AND SUNSET
SEPTEMBER 18 2007.....SUNRISE 654 AM EDT SUNSET 714 PM EDT
SEPTEMBER 19 2007.....SUNRISE 654 AM EDT SUNSET 712 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$