Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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693 CDUS41 KLWX 182128 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 528 PM EDT WED SEP 18 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 18 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 75 3:03 PM 91 1978 79 -4 79 MINIMUM 67 4:12 AM 37 1990 57 10 61 AVERAGE 71 68 3 70 PRECIPITATION (IN) TODAY 0.53 1.76 2003 0.15 0.38 0.00 MONTH TO DATE 0.61 2.33 -1.72 3.61 SINCE SEP 1 0.61 2.33 -1.72 3.61 SINCE JAN 1 26.39 31.55 -5.16 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 10 1 1 SINCE SEP 1 11 10 1 1 SINCE JUL 1 13 11 2 1 COOLING TODAY 6 4 2 5 MONTH TO DATE 67 116 -49 204 SINCE SEP 1 67 116 -49 204 SINCE JAN 1 1481 1172 309 1319 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60) AVERAGE WIND SPEED 8.1 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. HEAVY RAIN RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 97 4:00 AM LOWEST 79 12:00 PM AVERAGE 88 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 93 1977 1978 MINIMUM TEMPERATURE (F) 57 36 1984 SUNRISE AND SUNSET SEPTEMBER 18 2024.....SUNRISE 6:54 AM EDT SUNSET 7:12 PM EDT SEPTEMBER 19 2024.....SUNRISE 6:55 AM EDT SUNSET 7:11 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$