000 CDUS41 KLWX 190527 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1226 AM EST WED DEC 19 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 18 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 41 348 PM 76 2006 45 -4 76 MINIMUM 20 736 AM 3 1989 25 -5 46 AVERAGE 31 35 -4 61 PRECIPITATION (IN) YESTERDAY 0.00 2.92 1977 0.10 -0.10 0.00 MONTH TO DATE 2.05 1.80 0.25 0.16 SINCE DEC 1 2.05 1.80 0.25 0.16 SINCE JAN 1 27.08 40.53 -13.45 44.40 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 0.9 1.6 SINCE JUL 1 2.5 1.8 0.7 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 34 29 5 4 MONTH TO DATE 495 484 11 407 SINCE DEC 1 495 484 11 407 SINCE JUL 1 1224 1461 -237 1268 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 12 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 5.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 77 700 AM LOWEST 37 200 PM AVERAGE 57 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 63 1967 MINIMUM TEMPERATURE (F) 25 -2 1989 SUNRISE AND SUNSET DECEMBER 19 2007......SUNRISE 724 AM EST SUNSET 450 PM EST DECEMBER 20 2007......SUNRISE 724 AM EST SUNSET 450 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$