827 CDUS41 KLWX 110523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT SUN OCT 11 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 10 2020... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1960 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 74 12:25 PM 87 2017 70 4 75 MINIMUM 55 5:41 AM 31 1972 46 9 52 1978 AVERAGE 65 58 7 64 PRECIPITATION (IN) YESTERDAY 0.00 2.22 2013 0.11 -0.11 0.00 MONTH TO DATE 0.15 1.06 -0.91 0.10 SINCE SEP 1 2.43 4.98 -2.55 0.51 SINCE JAN 1 36.65 32.98 3.67 30.35 SNOWFALL (IN) YESTERDAY 0.0 1.3 1979 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 8 -8 1 MONTH TO DATE 66 66 0 15 SINCE SEP 1 127 122 5 20 SINCE JUL 1 127 124 3 20 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 1 12 -11 48 SINCE SEP 1 136 153 -17 286 SINCE JAN 1 1388 1169 219 1521 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 8.1 SKY COVER AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 6:00 AM LOWEST 68 12:00 PM AVERAGE 79 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 70 86 2010 MINIMUM TEMPERATURE (F) 45 28 1972 SUNRISE AND SUNSET OCTOBER 11 2020.......SUNRISE 7:16 AM EDT SUNSET 6:36 PM EDT OCTOBER 12 2020.......SUNRISE 7:17 AM EDT SUNSET 6:35 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$