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July is the hottest month in Cincinnati OH, with an average high of 86°F / 30°C; January is the coldest (39°F / 4°C). June is the wettest month, averaging 4.8 in / 121 mm of precipitation.
| Month | High °F / °C | Low °F / °C | Precip in / mm | Wet days |
|---|---|---|---|---|
| Jan | 39 / 4 | 23 / -5 | 3.3 / 84 | 10 |
| Feb | 43 / 6 | 26 / -3 | 3.2 / 81 | 9 |
| Mar | 53 / 12 | 34 / 1 | 4.2 / 106 | 10 |
| Apr | 65 / 19 | 44 / 7 | 4.5 / 115 | 11 |
| May | 74 / 24 | 54 / 12 | 4.7 / 119 | 11 |
| Jun | 82 / 28 | 62 / 17 | 4.8 / 121 | 9 |
| Jul | 86 / 30 | 66 / 19 | 3.8 / 97 | 9 |
| Aug | 85 / 30 | 65 / 18 | 3.4 / 87 | 7 |
| Sep | 79 / 26 | 57 / 14 | 3.1 / 79 | 6 |
| Oct | 67 / 19 | 46 / 8 | 3.3 / 85 | 7 |
| Nov | 54 / 12 | 35 / 2 | 3.2 / 82 | 8 |
| Dec | 43 / 6 | 28 / -2 | 3.7 / 95 | 9 |
Extremes since 1948: highest 104°F / 40°C (July 6, 2012), lowest -25°F / -32°C (January 18, 1977).
Daylight lasts about 14.8 hours in June and 9.2 hours in December.
Data: Meteostat — Cincinnati/Northern Ky International, 1991–2020 averages.
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