000 CDUS41 KLWX 120534 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1233 AM EST WED DEC 12 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 11 2007... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2007 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 51 1005 PM 71 1979 47 4 62 MINIMUM 43 544 AM 3 1968 27 16 29 AVERAGE 47 37 10 46 PRECIPITATION (IN) YESTERDAY 0.01 1.09 2002 0.10 -0.09 0.00 MONTH TO DATE 1.04 1.10 -0.06 0.02 SINCE DEC 1 1.04 1.10 -0.06 0.02 SINCE JAN 1 26.07 39.83 -13.76 44.26 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 0.2 2.3 SINCE JUL 1 2.5 1.1 1.4 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 18 27 -9 19 MONTH TO DATE 314 285 29 298 SINCE DEC 1 314 285 29 298 SINCE JUL 1 1043 1262 -219 1159 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1593 1075 518 1256 .................................................................. WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 5.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 200 PM LOWEST 82 400 AM AVERAGE 88 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 72 1979 MINIMUM TEMPERATURE (F) 27 9 1988 SUNRISE AND SUNSET DECEMBER 12 2007......SUNRISE 719 AM EST SUNSET 448 PM EST DECEMBER 13 2007......SUNRISE 720 AM EST SUNSET 448 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$