000 CDUS41 KLWX 180518 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 117 AM EDT SAT AUG 18 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR AUGUST 17 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 95 233 PM 101 1988 86 9 89 MINIMUM 71 628 AM 44 1979 63 8 63 AVERAGE 83 74 9 76 PRECIPITATION (IN) YESTERDAY 0.05 3.32 1997 0.12 -0.07 0.00 MONTH TO DATE 0.42 2.02 -1.60 1.19 SINCE JUN 1 5.09 9.66 -4.57 15.43 SINCE JAN 1 16.39 26.47 -10.08 26.94 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 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 3 22 -19 4 SINCE JUL 1 0 1 -1 0 COOLING YESTERDAY 18 10 8 11 MONTH TO DATE 289 181 108 219 SINCE JUN 1 969 729 240 887 SINCE JAN 1 1120 804 316 969 .................................................................. WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 8.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 400 AM LOWEST 34 600 PM AVERAGE 62 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 86 97 2002 MINIMUM TEMPERATURE (F) 63 45 1981 SUNRISE AND SUNSET AUGUST 18 2007........SUNRISE 626 AM EDT SUNSET 801 PM EDT AUGUST 19 2007........SUNRISE 627 AM EDT SUNSET 800 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$