000 CDUS41 KLWX 200532 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 132 AM EDT SAT OCT 20 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR OCTOBER 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 78 910 AM 83 1991 67 11 67 1963 MINIMUM 56 1155 PM 25 1976 41 15 55 AVERAGE 67 54 13 61 PRECIPITATION (IN) YESTERDAY 0.35 1.36 1966 0.10 0.25 0.06 MONTH TO DATE 0.35 2.10 -1.75 3.23 SINCE SEP 1 1.75 5.92 -4.17 10.35 SINCE JAN 1 19.39 34.15 -14.76 37.34 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 11 -11 4 MONTH TO DATE 39 163 -124 137 SINCE SEP 1 67 223 -156 191 SINCE JUL 1 67 228 -161 191 COOLING YESTERDAY 2 0 2 0 MONTH TO DATE 100 15 85 14 SINCE SEP 1 320 147 173 94 SINCE JAN 1 1585 1072 513 1255 .................................................................. WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 8.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 1100 PM LOWEST 57 800 PM AVERAGE 75 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 83 1969 MINIMUM TEMPERATURE (F) 40 20 1972 SUNRISE AND SUNSET OCTOBER 20 2007.......SUNRISE 724 AM EDT SUNSET 625 PM EDT OCTOBER 21 2007.......SUNRISE 725 AM EDT SUNSET 623 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$