529 CDUS41 KLWX 180523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT SUN SEP 18 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 17 2022... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2022 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 81 2:58 PM 97 1991 79 2 82 MINIMUM 55 6:14 AM 35 1986 58 -3 70 AVERAGE 68 68 0 76 PRECIPITATION (IN) YESTERDAY 0.00 1.71 2004 0.14 -0.14 T MONTH TO DATE 2.78 2.18 0.60 3.04 SINCE SEP 1 2.78 2.18 0.60 3.04 SINCE JAN 1 30.28 31.40 -1.12 27.63 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 0 1 -1 0 MONTH TO DATE 0 8 -8 0 SINCE SEP 1 0 8 -8 0 SINCE JUL 1 0 9 -9 0 COOLING YESTERDAY 3 5 -2 11 MONTH TO DATE 144 112 32 128 SINCE SEP 1 144 112 32 128 SINCE JAN 1 1322 1168 154 1380 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 2.9 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 4:00 AM LOWEST 44 1:00 PM AVERAGE 71 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 91 1978 MINIMUM TEMPERATURE (F) 57 37 1990 SUNRISE AND SUNSET SEPTEMBER 18 2022.....SUNRISE 6:54 AM EDT SUNSET 7:13 PM EDT SEPTEMBER 19 2022.....SUNRISE 6:55 AM EDT SUNSET 7:12 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$