000 CDUS41 KLWX 220613 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 113 AM EST SAT DEC 22 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 21 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 45 154 PM 60 1971 44 1 47 MINIMUM 30 249 AM 4 1989 25 5 36 AVERAGE 38 35 3 42 PRECIPITATION (IN) YESTERDAY 0.00 1.15 1973 0.10 -0.10 0.00 MONTH TO DATE 2.05 2.10 -0.05 0.16 SINCE DEC 1 2.05 2.10 -0.05 0.16 SINCE JAN 1 27.08 40.83 -13.75 44.40 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 1.2 1.3 SINCE JUL 1 2.5 2.1 0.4 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 27 30 -3 23 MONTH TO DATE 581 573 8 482 SINCE DEC 1 581 573 8 482 SINCE JUL 1 1310 1550 -240 1343 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 10 HIGHEST WIND DIRECTION E (80) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (230) AVERAGE WIND SPEED 4.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 85 500 AM LOWEST 53 200 PM AVERAGE 69 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 67 1984 MINIMUM TEMPERATURE (F) 25 2 1989 SUNRISE AND SUNSET DECEMBER 22 2007......SUNRISE 725 AM EST SUNSET 451 PM EST DECEMBER 23 2007......SUNRISE 726 AM EST SUNSET 452 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$