000 CDUS41 KLWX 130542 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1241 AM EST MON DEC 13 2004 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 12 2004... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2004 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 49 224 PM 72 1979 47 2 42 MINIMUM 39 454 AM 9 1988 27 12 25 AVERAGE 44 37 7 34 PRECIPITATION (IN) YESTERDAY 0.00 0.95 1964 0.10 -0.10 0.00 MONTH TO DATE 1.69 1.20 0.49 2.94 SINCE DEC 1 1.69 1.20 0.49 2.94 SINCE JAN 1 37.39 39.93 -2.54 64.08 SNOWFALL (IN) YESTERDAY 0.0 10.6 1982 0.1 -0.1 0.0 MONTH TO DATE 0.0 0.3 -0.3 7.8 SINCE DEC 1 0.0 0.3 -0.3 7.8 SINCE JUL 1 0.0 1.2 -1.2 7.8 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 21 28 -7 31 MONTH TO DATE 240 313 -73 360 SINCE DEC 1 240 313 -73 360 SINCE JUL 1 1045 1290 -245 1186 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1201 1075 126 993 .................................................................. WIND (MPH) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 9.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 70 600 PM LOWEST 46 100 PM AVERAGE 58 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 71 1984 MINIMUM TEMPERATURE (F) 26 7 1988 SUNRISE AND SUNSET DECEMBER 13 2004......SUNRISE 720 AM EST SUNSET 448 PM EST DECEMBER 14 2004......SUNRISE 721 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. $$