National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-12-20 05:32 UTC
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000
CDUS41 KLWX 200534
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1232 AM EST MON DEC 20 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 19 2004...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 46 253 PM 63 1967 45 1 34
MINIMUM 17 1159 PM -2 1989 25 -8 24
AVERAGE 32 35 -3 29
PRECIPITATION (IN)
YESTERDAY 0.01 0.20 1977 0.10 -0.09 0.00
MONTH TO DATE 1.70 1.90 -0.20 4.17
SINCE DEC 1 1.70 1.90 -0.20 4.17
SINCE JAN 1 37.40 40.63 -3.23 65.31
SNOWFALL (IN)
YESTERDAY T 3.1 2000 0.1 -0.1 0.0
MONTH TO DATE T 1.0 -1.0 11.4
SINCE DEC 1 T 1.0 -1.0 11.4
SINCE JUL 1 T 1.9 -1.9 11.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 33 29 4 36
MONTH TO DATE 452 513 -61 583
SINCE DEC 1 452 513 -61 583
SINCE JUL 1 1257 1490 -233 1409
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1201 1075 126 993
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
SNOW
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 600 AM
LOWEST 47 1100 PM
AVERAGE 72
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 64 1988
MINIMUM TEMPERATURE (F) 25 8 1991
SUNRISE AND SUNSET
DECEMBER 20 2004......SUNRISE 725 AM EST SUNSET 451 PM EST
DECEMBER 21 2004......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.
$$