Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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792 CDUS41 KLWX 202123 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 523 PM EDT FRI SEP 20 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 20 2024... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY 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) TODAY 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) TODAY 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 TODAY 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 TODAY 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 4.5 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. 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 TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 92 1965 1998 MINIMUM TEMPERATURE (F) 56 33 1962 SUNRISE AND SUNSET SEPTEMBER 20 2024.....SUNRISE 6:56 AM EDT SUNSET 7:09 PM EDT SEPTEMBER 21 2024.....SUNRISE 6:57 AM EDT SUNSET 7:08 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$