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July is the hottest month in Cleveland OH, with an average high of 83°F / 28°C; January is the coldest (35°F / 2°C). September is the wettest month, averaging 3.9 in / 100 mm of precipitation.
| Month | High °F / °C | Low °F / °C | Precip in / mm | Wet days |
|---|---|---|---|---|
| Jan | 35 / 2 | 21 / -6 | 3.0 / 76 | 13 |
| Feb | 38 / 3 | 23 / -5 | 2.5 / 63 | 10 |
| Mar | 46 / 8 | 30 / -1 | 3.1 / 78 | 11 |
| Apr | 59 / 15 | 40 / 4 | 3.7 / 95 | 11 |
| May | 70 / 21 | 50 / 10 | 3.8 / 96 | 11 |
| Jun | 79 / 26 | 60 / 16 | 3.8 / 97 | 9 |
| Jul | 83 / 28 | 64 / 18 | 3.7 / 93 | 9 |
| Aug | 81 / 27 | 63 / 17 | 3.5 / 90 | 8 |
| Sep | 75 / 24 | 56 / 13 | 3.9 / 100 | 8 |
| Oct | 63 / 17 | 46 / 8 | 3.6 / 91 | 10 |
| Nov | 50 / 10 | 36 / 2 | 3.4 / 86 | 10 |
| Dec | 40 / 4 | 27 / -3 | 3.0 / 76 | 11 |
Extremes since 1938: highest 104°F / 40°C (June 25, 1988), lowest -20°F / -29°C (January 19, 1994).
Daylight lasts about 15.0 hours in June and 9.0 hours in December.
Data: Meteostat — Cleveland-Hopkins International, 1991–2020 averages.
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