Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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874 CDUS41 KLWX 100521 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 121 AM EDT TUE SEP 10 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 9 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2024 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 78 3:22 PM 98 2016 82 -4 90 MINIMUM 43 5:57 AM 40 1986 61 -18 68 AVERAGE 61 71 -10 79 PRECIPITATION (IN) YESTERDAY 0.00 1.40 2018 0.13 -0.13 0.81 MONTH TO DATE T 1.10 -1.10 1.24 SINCE SEP 1 T 1.10 -1.10 1.24 SINCE JAN 1 25.78 30.32 -4.54 20.46 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 T SINCE SEP 1 0.0 0.0 0.0 T SINCE JUL 1 0.0 0.0 0.0 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 4 0 4 0 MONTH TO DATE 11 0 11 0 SINCE SEP 1 11 0 11 0 SINCE JUL 1 13 1 12 0 COOLING YESTERDAY 0 7 -7 14 MONTH TO DATE 21 68 -47 140 SINCE SEP 1 21 68 -47 140 SINCE JAN 1 1435 1124 311 1255 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 2.5 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 28 2:00 PM AVERAGE 61 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 99 1983 MINIMUM TEMPERATURE (F) 60 43 1981 SUNRISE AND SUNSET SEPTEMBER 10 2024.....SUNRISE 6:47 AM EDT SUNSET 7:25 PM EDT SEPTEMBER 11 2024.....SUNRISE 6:48 AM EDT SUNSET 7:24 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$