National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2003-12-21 05:33 UTC
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000
CDUS41 KLWX 210535
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1233 AM EST SUN DEC 21 2003
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 20 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 38 229 PM 64 1988 45 -7 54
MINIMUM 21 628 AM 8 1991 25 -4 32
AVERAGE 30 35 -5 43
PRECIPITATION (IN)
YESTERDAY 0.00 0.66 1973 0.10 -0.10 0.43
MONTH TO DATE 4.17 2.00 2.17 2.74
SINCE DEC 1 4.17 2.00 2.17 2.74
SINCE JAN 1 65.31 40.73 24.58 37.31
SNOWFALL (IN)
YESTERDAY 0.0 4.3 1966 0.1 -0.1 0.0
MONTH TO DATE 11.4 1.1 10.3 6.2
SINCE DEC 1 11.4 1.1 10.3 6.2
SINCE JUL 1 11.4 2.0 9.4 6.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 35 30 5 22
MONTH TO DATE 618 543 75 667
SINCE DEC 1 618 543 75 667
SINCE JUL 1 1444 1520 -76 1649
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 993 1075 -82 1345
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 M600 AM
LOWEST 40 M400 PM
AVERAGE 66
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 60 1971
MINIMUM TEMPERATURE (F) 25 4 1989
SUNRISE AND SUNSET
DECEMBER 21 2003......SUNRISE 725 AM EST SUNSET 451 PM EST
DECEMBER 22 2003......SUNRISE 725 AM EST SUNSET 451 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$