Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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443 CDUS41 KLWX 212126 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 526 PM EDT SAT SEP 21 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 21 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 83 3:02 PM 92 1965 77 6 81 1998 MINIMUM 65 5:35 AM 33 1962 56 9 54 AVERAGE 74 67 7 68 PRECIPITATION (IN) TODAY 0.00 2.59 1979 0.13 -0.13 0.00 MONTH TO DATE 0.61 2.74 -2.13 3.61 SINCE SEP 1 0.61 2.74 -2.13 3.61 SINCE JAN 1 26.39 31.96 -5.57 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 16 -5 1 SINCE SEP 1 11 16 -5 1 SINCE JUL 1 13 17 -4 1 COOLING TODAY 9 4 5 3 MONTH TO DATE 93 128 -35 208 SINCE SEP 1 93 128 -35 208 SINCE JAN 1 1507 1184 323 1323 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (200) AVERAGE WIND SPEED 6.6 SKY COVER AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 62 1:00 PM AVERAGE 78 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 94 1970 1980 2010 MINIMUM TEMPERATURE (F) 56 35 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. $$