000 CDUS41 KLWX 210519 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 119 AM EDT FRI SEP 21 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR SEPTEMBER 20 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 77 305 PM 91 1965 78 -1 66 MINIMUM 51 633 AM 40 1979 54 -3 48 AVERAGE 64 66 -2 57 PRECIPITATION (IN) YESTERDAY 0.00 0.87 1966 0.13 -0.13 0.00 MONTH TO DATE 0.81 2.60 -1.79 6.42 SINCE SEP 1 0.81 2.60 -1.79 6.42 SINCE JAN 1 18.45 30.83 -12.38 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 1 3 -2 8 MONTH TO DATE 26 21 5 13 SINCE SEP 1 26 21 5 13 SINCE JUL 1 26 26 0 13 COOLING YESTERDAY 0 4 -4 0 MONTH TO DATE 146 106 40 62 SINCE SEP 1 146 106 40 62 SINCE JAN 1 1411 1031 380 1223 .................................................................. WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (170) HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (170) AVERAGE WIND SPEED 2.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 700 AM LOWEST 50 100 PM AVERAGE 72 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 92 1998 1965 MINIMUM TEMPERATURE (F) 54 42 1991 SUNRISE AND SUNSET SEPTEMBER 21 2007.....SUNRISE 656 AM EDT SUNSET 709 PM EDT SEPTEMBER 22 2007.....SUNRISE 657 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. $$