000 CDUS41 KLWX 310521 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1220 AM EST MON DEC 31 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 30 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 43 147 PM 67 1990 42 1 52 MINIMUM 32 555 AM 4 1963 23 9 29 AVERAGE 38 33 5 41 PRECIPITATION (IN) YESTERDAY 0.18 0.87 1969 0.10 0.08 0.00 MONTH TO DATE 2.97 2.97 0.00 1.66 SINCE DEC 1 2.97 2.97 0.00 1.66 SINCE JAN 1 28.00 41.70 -13.70 45.90 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 2.1 0.4 SINCE JUL 1 2.5 3.0 -0.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 27 32 -5 24 MONTH TO DATE 793 852 -59 682 SINCE DEC 1 793 852 -59 682 SINCE JUL 1 1522 1829 -307 1543 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 13 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (140) AVERAGE WIND SPEED 3.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 600 AM LOWEST 73 100 AM AVERAGE 83 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 42 73 1992 MINIMUM TEMPERATURE (F) 23 1 1993 SUNRISE AND SUNSET DECEMBER 31 2007......SUNRISE 728 AM EST SUNSET 457 PM EST JANUARY 1 2008.......SUNRISE 729 AM EST SUNSET 458 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$