National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2003-09-18 05:29 UTC
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000
CDUS41 KLWX 180532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT THU SEP 18 2003
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 17 2003...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2003
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 78 203 PM 97 1991 79 -1 83
MINIMUM 54 513 AM 35 1986 56 -2 57
AVERAGE 66 67 -1 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.90 1987 0.13 -0.13 0.00
MONTH TO DATE 2.59 2.21 0.38 0.50
SINCE SEP 1 2.59 2.21 0.38 0.50
SINCE JAN 1 46.64 30.44 16.20 23.05
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0
2001
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 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 2 -2 0
MONTH TO DATE 8 14 -6 4
SINCE SEP 1 8 14 -6 4
SINCE JUL 1 8 19 -11 7
COOLING
YESTERDAY 1 4 -3 5
MONTH TO DATE 70 94 -24 92
SINCE SEP 1 70 94 -24 92
SINCE JAN 1 949 1019 -70 1255
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 7.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 43 200 PM
AVERAGE 72
..........................................................
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 2003.....SUNRISE 654 AM EDT SUNSET 714 PM EDT
SEPTEMBER 19 2003.....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.