000 CDUS41 KLWX 180533 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1231 AM EST SUN DEC 18 2005 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 17 2005... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2005 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 44 233 PM 70 1984 45 -1 49 MINIMUM 27 533 AM 3 1989 26 1 27 AVERAGE 36 35 1 38 PRECIPITATION (IN) YESTERDAY 0.00 0.75 2000 0.10 -0.10 0.00 MONTH TO DATE 2.14 1.70 0.44 1.69 SINCE DEC 1 2.14 1.70 0.44 1.69 SINCE JAN 1 43.77 40.43 3.34 37.39 SNOWFALL (IN) YESTERDAY 0.0 4.3 1973 0.1 -0.1 0.0 MONTH TO DATE 5.7 0.8 4.9 0.0 SINCE DEC 1 5.7 0.8 4.9 0.0 SINCE JUL 1 6.0 1.7 4.3 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 29 29 0 27 MONTH TO DATE 573 455 118 388 SINCE DEC 1 573 455 118 388 SINCE JUL 1 1312 1432 -120 1193 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1373 1075 298 1201 .................................................................. WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 1.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 85 300 AM LOWEST 40 100 PM AVERAGE 63 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 69 1984 MINIMUM TEMPERATURE (F) 25 3 1989 SUNRISE AND SUNSET DECEMBER 18 2005......SUNRISE 723 AM EST SUNSET 450 PM EST DECEMBER 19 2005......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. $$