148
CDUS41 KLWX 260523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST THU NOV 26 2009
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 25 2009
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2009
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 313 PM 77 1979 53 3 48
MINIMUM 41 1159 PM 15 1970 31 10 32
AVERAGE 49 42 7 40
PRECIPITATION (IN)
YESTERDAY 0.14 1.31 1964 0.11 0.03 T
MONTH TO DATE 3.42 2.76 0.66 1.45
SINCE SEP 1 10.95 9.95 1.00 9.94
SINCE JAN 1 42.35 38.18 4.17 40.82
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1
MONTH TO DATE 0.0 0.3 -0.3
SINCE JUL 1 0.0 0.4 -0.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 16 23 -7 25
MONTH TO DATE 353 472 -119 477
SINCE SEP 1 640 855 -215 815
SINCE JUL 1 640 860 -220 815
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 137 147 -10 177
SINCE JAN 1 1259 1072 187 1171
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 2.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1000 PM
LOWEST 77 400 PM
AVERAGE 87
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 53 75 1990
MINIMUM TEMPERATURE (F) 31 16 1974
SUNRISE AND SUNSET
NOVEMBER 26 2009......SUNRISE 705 AM EST SUNSET 449 PM EST
NOVEMBER 27 2009......SUNRISE 706 AM EST SUNSET 449 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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