474
CDUS41 KLWX 200547 CCA
CLIIAD
CLIMATE REPORT
CORRECTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1237 AM EST THU JAN 20 2005
...................
THE WASHINGTON DULLES CLIMATE SUMMARY FOR JANUARY 19 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 25 1159 PM 65 1972 41 -16 29
MINIMUM 12 101 AM -6 1994 21 -9 21
AVERAGE 19 31 -12 25
PRECIPITATION (IN)
YESTERDAY 0.06 1.36 1987 0.10 -0.04 0.00
MONTH TO DATE 2.43 1.90 0.53 0.85
SINCE DEC 1 5.44 4.97 0.47 5.42
SINCE JAN 1 2.43 1.90 0.53 0.85
SNOWFALL (IN)
YESTERDAY 1.0 4.3 1978 0.3 0.7 0.0
MONTH TO DATE 1.0 4.5 -3.5 0.4
SINCE DEC 1 1.0 6.7 -5.7 11.8
SINCE JUL 1 1.0 7.6 -6.6 11.8
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 46 34 12 40
MONTH TO DATE 456 627 -171 621
SINCE DEC 1 1292 1511 -219 1512
SINCE JUL 1 2097 2488 -391 2338
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 23 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
SNOW
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 1100 AM
LOWEST 45 800 AM
AVERAGE 65
................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 57 1991
MINIMUM TEMPERATURE (F) 21 -7 1985
SUNRISE AND SUNSET
JANUARY 20 2005.......SUNRISE 725 AM EST SUNSET 518 PM EST
JANUARY 21 2005.......SUNRISE 724 AM EST SUNSET 519 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CORRECTION TO SNOWFALL
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