798 CDUS41 KLWX 170535 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 135 AM EDT TUE OCT 17 2023 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 16 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2023 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 63 3:11 PM 85 1989 68 -5 73 MINIMUM 43 6:22 AM 30 1986 45 -2 48 AVERAGE 53 56 -3 61 PRECIPITATION (IN) YESTERDAY T 1.10 2002 0.12 -0.12 T MONTH TO DATE 0.52 1.93 -1.41 2.03 SINCE SEP 1 7.17 5.87 1.30 5.31 SINCE JAN 1 26.39 35.09 -8.70 32.81 SNOWFALL (IN) YESTERDAY 0.0 T 1977 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 T 0.0 0.0 0.0 SINCE JUL 1 T 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 12 9 3 4 MONTH TO DATE 87 108 -21 130 SINCE SEP 1 103 153 -50 169 SINCE JUL 1 103 154 -51 169 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 32 19 13 0 SINCE SEP 1 248 171 77 176 SINCE JAN 1 1363 1227 136 1354 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 8.7 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 89 7:00 AM LOWEST 49 12:00 PM AVERAGE 69 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 84 2016 MINIMUM TEMPERATURE (F) 45 31 1981 1982 SUNRISE AND SUNSET OCTOBER 17 2023.......SUNRISE 7:21 AM EDT SUNSET 6:29 PM EDT OCTOBER 18 2023.......SUNRISE 7:22 AM EDT SUNSET 6:27 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$