000 CDUS41 KLWX 232131 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 430 PM EST MON NOV 23 2009 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 23 2009... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2009 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) TODAY MAXIMUM 51 1151 AM 70 1990 54 -3 42 MINIMUM 41 1242 AM 14 1984 32 9 18 1964 AVERAGE 46 43 3 30 PRECIPITATION (IN) TODAY 0.16 1.25 1992 0.11 0.05 0.00 MONTH TO DATE 2.87 2.54 0.33 1.33 SINCE SEP 1 10.40 9.73 0.67 9.82 SINCE JAN 1 41.80 37.96 3.84 40.70 SNOWFALL (IN) TODAY MM 0.1 MM MONTH TO DATE 0.0 0.1 -0.1 SINCE JUL 1 0.0 0.2 -0.2 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 19 22 -3 35 MONTH TO DATE 322 427 -105 423 SINCE SEP 1 609 810 -201 761 SINCE JUL 1 609 815 -206 761 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 137 147 -10 177 SINCE JAN 1 1259 1072 187 1171 .................................................................. WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 5.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 86 800 AM LOWEST 74 1100 AM AVERAGE 80 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 53 74 1979 MINIMUM TEMPERATURE (F) 32 9 1989 SUNRISE AND SUNSET NOVEMBER 23 2009......SUNRISE 702 AM EST SUNSET 451 PM EST NOVEMBER 24 2009......SUNRISE 703 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. $$