000 CDUS41 KLWX 270531 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1229 AM EST THU DEC 27 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 26 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 39 1246 PM 71 1964 43 -4 53 MINIMUM 28 245 AM -1 1983 24 4 43 AVERAGE 34 34 0 48 PRECIPITATION (IN) YESTERDAY 0.12 1.00 1969 0.10 0.02 0.07 MONTH TO DATE 2.47 2.57 -0.10 1.66 SINCE DEC 1 2.47 2.57 -0.10 1.66 SINCE JAN 1 27.50 41.30 -13.80 45.90 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 1.7 0.8 SINCE JUL 1 2.5 2.6 -0.1 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 31 31 0 17 MONTH TO DATE 699 726 -27 581 SINCE DEC 1 699 726 -27 581 SINCE JUL 1 1428 1703 -275 1442 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 15 HIGHEST WIND DIRECTION N (350) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 6.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 85 1200 AM LOWEST 70 1000 AM AVERAGE 78 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 43 73 1971 MINIMUM TEMPERATURE (F) 24 1 1989 SUNRISE AND SUNSET DECEMBER 27 2007......SUNRISE 727 AM EST SUNSET 454 PM EST DECEMBER 28 2007......SUNRISE 728 AM EST SUNSET 455 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$