910 CDUS41 KLWX 102132 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 532 PM EDT WED OCT 10 2018 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 10 2018... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1960 TO 2018 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) TODAY MAXIMUM 83 106 PM 87 2017 70 13 87 MINIMUM 69 529 AM 31 1978 46 23 64 1972 AVERAGE 76 58 18 76 PRECIPITATION (IN) TODAY 0.01 2.22 2013 0.11 -0.10 0.00 MONTH TO DATE 0.01 1.06 -1.05 0.61 SINCE SEP 1 7.37 4.98 2.39 2.36 SINCE JAN 1 50.63 32.98 17.65 35.36 SNOWFALL (IN) TODAY 0.0 1.3 1979 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 TODAY 0 8 -8 0 MONTH TO DATE 0 66 -66 25 SINCE SEP 1 13 122 -109 65 SINCE JUL 1 13 124 -111 66 COOLING TODAY 11 1 10 11 MONTH TO DATE 90 12 78 52 SINCE SEP 1 331 153 178 207 SINCE JAN 1 1515 1169 346 1268 .................................................................. WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 6.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 1200 AM LOWEST 65 200 PM AVERAGE 83 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 70 86 2010 MINIMUM TEMPERATURE (F) 45 28 1972 SUNRISE AND SUNSET OCTOBER 10 2018.......SUNRISE 714 AM EDT SUNSET 639 PM EDT OCTOBER 11 2018.......SUNRISE 715 AM EDT SUNSET 637 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$