000 CDUS41 KLWX 200526 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 126 AM EDT THU SEP 20 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 19 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 80 401 PM 93 1978 78 2 78 1977 MINIMUM 50 204 AM 36 1984 55 -5 59 AVERAGE 65 66 -1 69 PRECIPITATION (IN) YESTERDAY 0.00 1.26 2000 0.13 -0.13 0.00 MONTH TO DATE 0.81 2.47 -1.66 6.42 SINCE SEP 1 0.81 2.47 -1.66 6.42 SINCE JAN 1 18.45 30.70 -12.25 33.41 SNOWFALL (IN) YESTERDAY 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 25 18 7 5 SINCE SEP 1 25 18 7 5 SINCE JUL 1 25 23 2 5 COOLING YESTERDAY 0 4 -4 4 MONTH TO DATE 146 102 44 62 SINCE SEP 1 146 102 44 62 SINCE JAN 1 1411 1027 384 1223 .................................................................. WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150) HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 3.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 89 100 AM LOWEST 40 200 PM AVERAGE 65 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 91 1965 MINIMUM TEMPERATURE (F) 54 40 1979 SUNRISE AND SUNSET SEPTEMBER 20 2007.....SUNRISE 655 AM EDT SUNSET 711 PM EDT SEPTEMBER 21 2007.....SUNRISE 656 AM EDT SUNSET 709 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$