268 CDUS41 KLWX 280523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT WED OCT 28 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 27 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 63 4:13 PM 84 1963 65 -2 79 MINIMUM 55 2:32 AM 21 1988 40 15 57 AVERAGE 59 52 7 68 PRECIPITATION (IN) YESTERDAY 0.00 1.89 2003 0.10 -0.10 1.29 MONTH TO DATE 1.70 2.81 -1.11 4.25 SINCE SEP 1 3.98 6.73 -2.75 4.66 SINCE JAN 1 38.20 34.73 3.47 34.50 SNOWFALL (IN) YESTERDAY 0.0 MM MM 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 6 13 -7 0 MONTH TO DATE 159 244 -85 164 SINCE SEP 1 220 300 -80 169 SINCE JUL 1 220 302 -82 169 COOLING YESTERDAY 0 0 0 3 MONTH TO DATE 17 16 1 51 SINCE SEP 1 152 157 -5 289 SINCE JAN 1 1404 1173 231 1524 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (360) AVERAGE WIND SPEED 3.2 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 97 1:00 AM LOWEST 62 12:00 PM AVERAGE 80 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 64 83 1984 MINIMUM TEMPERATURE (F) 40 22 1976 SUNRISE AND SUNSET OCTOBER 28 2020.......SUNRISE 7:33 AM EDT SUNSET 6:13 PM EDT OCTOBER 29 2020.......SUNRISE 7:34 AM EDT SUNSET 6:12 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$