Ohio weather in September: Statewide normals and every place, NOAA 1991-2020

In September, Ohio's statewide normal high is 77°F and normal low 54°F; normal highs run from 73°F in Ashtabula to 81°F in Chilo (NOAA 1991-2020 normals).

Statewide normal high
77°FSeptember, 1991-2020
Statewide normal low
54°FSeptember, 1991-2020
Statewide normal precipitation
3.30 inSeptember
Warmest place
81°Fnormal high, Chilo
Coolest place
73°Fnormal high, Ashtabula

Where is Ohio warmest and wettest in September?

Chilo has the warmest September afternoons (81°F) and Ashtabula the coolest (73°F). Kirtland gets the most precipitation (4.55 in) and Findlay the least (2.63 in).

Statewide, September averaged 66.9°F in 2021, 65.2°F in 2022, 65.9°F in 2023, 68.2°F in 2024, 66.7°F in 2025, against a 1991-2020 normal of 65.1°F.

Ohio in September: normal high, low, precipitation and snow by place (largest first)
PlaceHighLowPrecip.Snow
Columbus78°F57°F3.140.0
Cleveland76°F57°F3.930.0
Cincinnati79°F57°F3.110.0
Toledo78°F55°F2.930.0
Akron76°F55°F3.500.0
Dayton79°F57°F3.310.0
Hamilton80°F54°F3.04–
Youngstown74°F52°F3.840.0
Springfield78°F52°F3.39–
Elyria75°F53°F3.74–
Newark79°F53°F2.83–
Mansfield75°F54°F3.360.0
Fairfield80°F55°F3.27–
Lancaster78°F52°F3.21–
Findlay78°F55°F2.63–
Warren75°F50°F3.670.0
Westerville79°F56°F3.290.0
North Ridgeville77°F56°F4.050.0
Marion76°F53°F3.51–
Lima76°F54°F2.85–
Stow74°F52°F3.79–
Bowling Green76°F54°F2.910.0
Marysville78°F55°F3.200.0
Wooster74°F53°F3.34–
Xenia77°F56°F2.720.0
Zanesville78°F54°F3.12–
Athens76°F54°F3.180.0
Sandusky75°F59°F3.07–
Chillicothe79°F54°F––
Piqua78°F55°F2.98–
Painesville76°F59°F3.91–
Sidney78°F53°F3.11–
Ashland76°F51°F––
Steubenville76°F54°F3.81–
Ashtabula73°F52°F3.85–
Tiffin77°F54°F3.320.0
Portsmouth80°F56°F3.30–
New Philadelphia76°F53°F2.97–
Defiance75°F53°F2.67–
Norwalk76°F55°F3.550.0
Fremont77°F54°F3.230.0
Washington Court House77°F54°F2.690.0
Circleville80°F57°F2.960.0
Bellefontaine76°F54°F3.18–
Marietta79°F56°F3.390.0
Greenville78°F53°F2.75–
Wilmington77°F54°F2.93–
Franklin79°F53°F2.87–
Bucyrus78°F55°F3.360.0
Mack79°F55°F––
Ravenna75°F51°F4.190.0
Urbana77°F53°F3.34–
Van Wert77°F55°F3.150.0
Coshocton76°F53°F3.170.0
Celina77°F54°F2.750.0
London76°F53°F2.91–
Galion76°F53°F3.490.0
Cambridge78°F54°F3.470.0
Napoleon76°F53°F3.310.0
Cheviot78°F57°F3.320.0
Bryan76°F52°F3.29–
Oberlin75°F52°F3.700.0
Eaton79°F53°F3.04–
Kenton77°F54°F3.110.0
Wauseon76°F52°F3.030.0
Logan78°F52°F2.94–
Kirtland74°F55°F4.55–
Upper Sandusky77°F52°F3.34–
Hillsboro78°F53°F3.170.0
Milford80°F54°F––
Jackson75°F54°F3.480.0
New Carlisle78°F54°F3.210.0
Chardon73°F51°F4.520.0
New Lexington77°F52°F3.200.0
Waverly80°F55°F2.950.0
Barnesville76°F54°F––
Montpelier75°F52°F3.110.0
Paulding78°F53°F2.920.0
Hicksville77°F51°F2.94–
Gallipolis80°F57°F3.75–
Millersburg76°F51°F3.290.0
Cadiz75°F55°F3.950.0
Fredericktown74°F49°F––
Dennison77°F52°F3.39–
Caldwell77°F52°F––
Lucasville81°F55°F––
Centerburg75°F52°F3.58–
Ripley79°F50°F3.020.0
Newport78°F55°F3.300.0
Beverly78°F54°F3.640.0
Pandora76°F54°F3.090.0
Danville75°F49°F3.230.0
Hiram73°F52°F4.040.0
Philo77°F56°F3.40–
Chippewa Lake74°F52°F3.380.0
Huntsville79°F54°F3.12–
Hoytville77°F53°F2.900.0
Hannibal77°F54°F3.70–
Chilo81°F57°F2.79–
Akron Fulton International Airport77°F55°F3.18–
Carpenter (2 mi S)79°F52°F3.130.0
Cincinnati-Fernbank79°F57°F3.310.0
Columbus Ohio State University Airport77°F55°F3.00–
Columbus WCMH78°F55°F3.78–
Dorset73°F50°F4.520.0
McConnellsville Lake 778°F53°F3.410.0
Millport (4 mi NE)74°F52°F––
Mosquito Creek Lake75°F51°F4.270.0
Newark Water Works76°F52°F3.240.0
South Point80°F58°F3.880.0
Waterloo79°F52°F3.880.0
Weather Office Wilmington79°F55°F3.030.0

Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.

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