National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2002-09-21 05:30 UTC
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567
CDUS41 KLWX 210533
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
130 AM EDT SAT SEP 21 2002
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 20 2002...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2002
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 158 PM 91 1965 78 8 74
MINIMUM 64 648 AM 40 1979 54 10 63
AVERAGE 75 66 9 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.87 1966 0.13 -0.13 0.85
MONTH TO DATE 0.50 2.60 -2.10 1.00
SINCE SEP 1 0.50 2.60 -2.10 1.00
SINCE JAN 1 23.05 30.83 -7.78 30.98
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 4 21 -17 20
SINCE SEP 1 4 21 -17 20
SINCE JUL 1 7 26 -19 25
COOLING
YESTERDAY 10 4 6 4
MONTH TO DATE 116 106 10 73
SINCE SEP 1 116 106 10 73
SINCE JAN 1 1279 1031 248 987
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 55 100 PM
AVERAGE 74
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 92 1998
MINIMUM TEMPERATURE (F) 54 42 1991
SUNRISE AND SUNSET
SEPTEMBER 21 2002.....SUNRISE 656 AM EDT SUNSET 709 PM EDT
SEPTEMBER 22 2002.....SUNRISE 657 AM EDT SUNSET 707 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.