The potential for above average temperatures becomes more expansive in November. Record heat was observed across parts of the central and southern Rocky Mountains, the southern Plains, and portions … The average sea temperature around Cleveland in September is 21°C. To get the accurate Ohio weather in September 2021, check the Ohio 14 days weather forecast just before September 2021 comes. The tables give daily averages along with highest and lowest relative humidity levels. Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. The average humidity in September is listed below for places in Ohio. Place. Temperature In September, the average high-temperature slightly decreases, from a warm 84.2°F (29°C) in August, to a still moderately hot 78.8°F (26°C).In Chillicothe, Ohio, the average low-temperature is 53.6°F (12°C). Does it rain in Cleveland in September? You can jump to a separate table for Northern Ohio and Southern Ohio. The wettest month is June with an average of 93mm of rain. Home | Privacy & Cookies | Contact | About. Monthly: 1981-2010 normals How sunny is it in Ohio in September? Includes Daily Risk of Precipitation, High/Low/Average Temperatures, Heating/Cooling Degree Days and Growing Degree Days United States Columbus, Ohio Long Range Weather Forecast Weather is far too cold this time of year in Ohio to be enjoyable for warm weather travelers. Either way, it is recommended to check the exact weather forecast for Ohio before arriving, as the weather forecast becomes more accurate closer to the checked date. Average Weather in September in Columbus Ohio, United States. January February March April May June July August September October November December; Average Monthly high in °F: 37° 41° 51° 63° 72° 81° 84° 83° 76° 65° 53° ... Ohio … Precipitation: 1.48". High Temp: 85 °F. Much of … The warmest September on record occurred in 1998 and was 0.5°F warmer than in 2019. Ohio is a big country, for a more accurate weather forecast please select a city. The average relative humidity in September is 72.8%. The average minimum temperature (usually the minimum temperature is noted during the night) in Columbus in September is 14.0°C (57.2°F). Station Data. The climate in Cincinnati during September can be summarized as warm and reasonably dry. Southern Ohio. There are usually 10 days with some rain in Cleveland in September and the average monthly rainfall is 87mm. September is in the fall / autumn in Cincinnati and is typically the 4th warmest month of the year. On average, it rains or snows a fair amount: 3 to 5 times per month. Low °F. For September, the average contiguous U.S. temperature was 68.5°F, 3.7°F above the 20th century average, tying with 2015 as the second warmest September in the 125-year period of record. Station Data. NOAA's 1981-2010 Climate Normals. The amount of rain in September is normal with an average of 75mm (3.0in). Average Weather during September in Wadsworth (Ohio), United States of America The average minimum temperature (usually the minimum temperature is noted during the night) in Wadsworth in September is 11.0°C (51.8°F). High Temp: 85 °F. With an average of 22.4 °C | 72.3 °F, July is the warmest month. These times of year are fairly slow with tourists. The hottest day on record was September 9, 1978 when the temperature hit 95.0°F. Average daily temperatures in September. National Climatic Data Center. At -3.7 °C | 25.3 °F on average, January is the coldest month of the year. Delaware average temperature. Low Temp: 21 °F. For the year-to-date, the national temperature was 56.3°F, 2.4°F above average, ranking seventh warmest in the historical record. The average high during this season is between 43°F (6.1°C) and 31.4°F (-0.3°C). See Historical Weather Data for a Location and Date. ; Above- to much-above-average year-to-date temperatures were observed across nearly the entire Lower 48. Averages are for Dayton / Wright-Patterson Air Force Base, which is 9 miles from Dayton. Low °C. Daily low temperatures decrease by 10°F, from 61°F to 51°F, rarely falling below 40°F or exceeding 70°F. Daytime temperatures usually reach 25°C in Columbus, Ohio in September with no heat and humidity, falling to 12°C at night. Copyright © 2020 Current Results Publishing Ltd. Precipitation Averages for Ohio in September. The amount of rain in September is normal with an average of 72mm (2.8in). In September sea water temperature throughout warms above 20°C/68°F and it is enough for a comfortable bath. The nationally averaged minimum temperature (overnight lows) during September was 53.0°F, 1.1°F above average, also ranking in the warmest one-third of the 126-year record. 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