000 CDUS41 KLWX 270522 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1221 AM EST FRI NOV 27 2009 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 26 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 50 922 PM 75 1990 53 -3 43 MINIMUM 40 150 AM 16 1974 31 9 27 AVERAGE 45 42 3 35 PRECIPITATION (IN) YESTERDAY 0.03 1.03 1996 0.11 -0.08 0.00 MONTH TO DATE 3.45 2.87 0.58 1.45 SINCE SEP 1 10.98 10.06 0.92 9.94 SINCE JAN 1 42.38 38.29 4.09 40.82 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 0.0 0.4 -0.4 SINCE JUL 1 0.0 0.5 -0.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 20 23 -3 30 MONTH TO DATE 373 495 -122 507 SINCE SEP 1 660 878 -218 845 SINCE JUL 1 660 883 -223 845 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 .................................................................. WIND (MPH) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 4.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 900 AM LOWEST 80 1000 PM AVERAGE 90 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 52 68 1976 MINIMUM TEMPERATURE (F) 31 11 1974 SUNRISE AND SUNSET NOVEMBER 27 2009......SUNRISE 706 AM EST SUNSET 449 PM EST NOVEMBER 28 2009......SUNRISE 707 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. $$