620
CDUS41 KLWX 180537
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1233 AM EST TUE JAN 18 2005
...................
THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 17 2005...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
........................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 29 1253 AM 70 1990 41 -12 36
MINIMUM 15 1159 PM -7 1982 22 -7 19
AVERAGE 22 31 -9 28
PRECIPITATION (IN)
YESTERDAY T 1.14 1994 0.10 -0.10 0.07
MONTH TO DATE 2.37 1.70 0.67 0.58
SINCE DEC 1 5.38 4.77 0.61 5.15
SINCE JAN 1 2.37 1.70 0.67 0.58
SNOWFALL (IN)
YESTERDAY T 4.2 1965 0.3 -0.3 0.1
MONTH TO DATE T 3.9 -3.9 0.4
SINCE DEC 1 T 6.1 -6.1 11.8
SINCE JUL 1 T 7.0 -7.0 11.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 43 34 9 37
MONTH TO DATE 362 559 -197 548
SINCE DEC 1 1198 1443 -245 1439
SINCE JUL 1 2003 2420 -417 2265
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
........................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 15.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 1200 AM
LOWEST 39 100 PM
AVERAGE 62
................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 70 1990
MINIMUM TEMPERATURE (F) 21 -1 1994
SUNRISE AND SUNSET
JANUARY 18 2005.......SUNRISE 726 AM EST SUNSET 515 PM EST
JANUARY 19 2005.......SUNRISE 725 AM EST SUNSET 516 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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