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Displaying AFOS PIL: CLIIAD Received: 2018-01-10 05:25 UTC
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CDUS41 KLWX 100527
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST WED JAN 10 2018
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...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 9 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 50 307 PM 64 2008 42 8 27
MINIMUM 22 557 AM -8 1970 24 -2 7
AVERAGE 36 33 3 17
PRECIPITATION (IN)
YESTERDAY 0.00 1.39 1964 0.08 -0.08 0.00
MONTH TO DATE 0.03 0.73 -0.70 1.26
SINCE DEC 1 0.80 3.69 -2.89 3.62
SINCE JAN 1 0.03 0.73 -0.70 1.26
SNOWFALL (IN)
YESTERDAY 0.0 3.5 1997 0.2 -0.2
MONTH TO DATE 0.1 1.6 -1.5
SINCE JUL 1 4.7 5.6 -0.9
SNOW DEPTH T
DEGREE DAYS
HEATING
YESTERDAY 29 32 -3 48
MONTH TO DATE 413 288 125 302
SINCE DEC 1 1336 1170 166 1125
SINCE JUL 1 2130 2086 44 1852
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
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 42 400 PM
AVERAGE 71
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 59 2016
MINIMUM TEMPERATURE (F) 24 0 1982
SUNRISE AND SUNSET
JANUARY 10 2018.......SUNRISE 728 AM EST SUNSET 507 PM EST
JANUARY 11 2018.......SUNRISE 728 AM EST SUNSET 508 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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