472 CDUS41 KLWX 210529 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 129 AM EDT WED OCT 21 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 20 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 76 3:24 PM 83 1969 67 9 57 2016 MINIMUM 50 5:50 AM 20 1972 42 8 52 AVERAGE 63 54 9 55 PRECIPITATION (IN) YESTERDAY 0.00 1.44 2019 0.10 -0.10 1.44 MONTH TO DATE 1.33 2.08 -0.75 2.58 SINCE SEP 1 3.61 6.00 -2.39 2.99 SINCE JAN 1 37.83 34.00 3.83 32.83 SNOWFALL (IN) YESTERDAY 0.0 T 1974 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 2 11 -9 10 MONTH TO DATE 128 161 -33 110 SINCE SEP 1 189 217 -28 115 SINCE JUL 1 189 219 -30 115 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 4 16 -12 48 SINCE SEP 1 139 157 -18 286 SINCE JAN 1 1391 1173 218 1521 ................................................................... WIND (MPH) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (120) AVERAGE WIND SPEED 4.6 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 3:00 AM LOWEST 54 2:00 PM AVERAGE 77 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 86 1979 MINIMUM TEMPERATURE (F) 42 22 1972 SUNRISE AND SUNSET OCTOBER 21 2020.......SUNRISE 7:26 AM EDT SUNSET 6:22 PM EDT OCTOBER 22 2020.......SUNRISE 7:27 AM EDT SUNSET 6:21 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$