000 CDUS41 KLWX 210538 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 138 AM EDT WED SEP 21 2005 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 20 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 89 MM 91 1965 78 11 72 MINIMUM 68 MM 40 1979 54 14 47 AVERAGE 79 66 13 60 PRECIPITATION (IN) YESTERDAY 0.00 0.87 1966 0.13 -0.13 0.00 MONTH TO DATE 0.01 2.60 -2.59 4.19 SINCE SEP 1 0.01 2.60 -2.59 4.19 SINCE JAN 1 29.78 30.83 -1.05 28.93 SNOWFALL (IN) YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0 2001 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 3 -3 5 MONTH TO DATE 0 21 -21 11 SINCE SEP 1 0 21 -21 11 SINCE JUL 1 0 26 -26 13 COOLING YESTERDAY 14 4 10 0 MONTH TO DATE 175 106 69 110 SINCE SEP 1 175 106 69 110 SINCE JAN 1 1286 1031 255 1169 .................................................................. WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 8.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 87 700 AM LOWEST 40 200 PM AVERAGE 64 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 92 1998 MINIMUM TEMPERATURE (F) 54 42 1991 SUNRISE AND SUNSET SEPTEMBER 21 2005.....SUNRISE 657 AM EDT SUNSET 708 PM EDT SEPTEMBER 22 2005.....SUNRISE 658 AM EDT SUNSET 707 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$