Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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286 CDUS41 KLWX 210522 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 122 AM EDT SAT SEP 21 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 20 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 86 3:12 PM 91 1965 78 8 80 MINIMUM 59 4:26 AM 40 1979 56 3 49 AVERAGE 73 67 6 65 PRECIPITATION (IN) YESTERDAY 0.00 0.87 1966 0.14 -0.14 0.00 MONTH TO DATE 0.61 2.61 -2.00 3.61 SINCE SEP 1 0.61 2.61 -2.00 3.61 SINCE JAN 1 26.39 31.83 -5.44 22.83 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 0 2 -2 0 MONTH TO DATE 11 14 -3 1 SINCE SEP 1 11 14 -3 1 SINCE JUL 1 13 15 -2 1 COOLING YESTERDAY 8 4 4 0 MONTH TO DATE 84 124 -40 205 SINCE SEP 1 84 124 -40 205 SINCE JAN 1 1498 1180 318 1320 ................................................................... WIND (MPH) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 4.0 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 4:00 AM LOWEST 43 3:00 PM AVERAGE 68 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 92 1965 1998 MINIMUM TEMPERATURE (F) 56 33 1962 SUNRISE AND SUNSET SEPTEMBER 21 2024.....SUNRISE 6:57 AM EDT SUNSET 7:08 PM EDT SEPTEMBER 22 2024.....SUNRISE 6:58 AM EDT SUNSET 7:06 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$