National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-12-23 05:19 UTC
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000
CDUS41 KLWX 230521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1219 AM EST SUN DEC 23 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 22 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 45 1157 PM 67 1984 44 1 56
MINIMUM 39 159 AM 2 1989 25 14 44
AVERAGE 42 34 8 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.94 1983 0.10 -0.10 0.87
MONTH TO DATE 2.05 2.20 -0.15 1.03
SINCE DEC 1 2.05 2.20 -0.15 1.03
SINCE JAN 1 27.08 40.93 -13.85 45.27
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 2.5 1.3 1.2
SINCE JUL 1 2.5 2.2 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 30 -7 15
MONTH TO DATE 604 603 1 497
SINCE DEC 1 604 603 1 497
SINCE JUL 1 1333 1580 -247 1358
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1593 1075 518 1256
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 1100 PM
LOWEST 70 1000 AM
AVERAGE 76
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 68 1990
MINIMUM TEMPERATURE (F) 24 4 1989
SUNRISE AND SUNSET
DECEMBER 23 2007......SUNRISE 726 AM EST SUNSET 452 PM EST
DECEMBER 24 2007......SUNRISE 726 AM EST SUNSET 452 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$