| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.9° | -4.5° | 71.9mm | 10.7 | 21 |
| February | 7.4° | -3.4° | 72.7mm | 9.7 | 32 |
| March | 12.9° | 0.9° | 98mm | 11.3 | 53 |
| April | 19.2° | 5.7° | 110.8mm | 12.4 | 73 |
| May | 24.2° | 11.5° | 125.4mm | 13.7 | 73 |
| June | 28.5° | 16.2° | 116.7mm | 12.3 | 69 |
| July | 30.3° | 18.4° | 109.6mm | 12 | 63 |
| August | 30.1° | 17.7° | 82.3mm | 9.4 | 69 |
| September | 26.8° | 13.4° | 82mm | 8.7 | 83 |
| October | 20.1° | 6.9° | 79.6mm | 9.1 | 82 |
| November | 12.9° | 0.9° | 71.2mm | 9.8 | 56 |
| December | 7.3° | -2.2° | 88.4mm | 11.6 | 30 |
January in Cincinnati averages a daily high of 4.9°C with nights around -4.5°C. Expect roughly 10.7 wet days totalling 71.9mm. A hard month to visit for comfort alone.
February in Cincinnati averages a daily high of 7.4°C with nights around -3.4°C. Expect roughly 9.7 wet days totalling 72.7mm. A hard month to visit for comfort alone.
March in Cincinnati averages a daily high of 12.9°C with nights around 0.9°C. Expect roughly 11.3 wet days totalling 98mm. Demanding conditions — pack for it and plan indoor options.
April in Cincinnati averages a daily high of 19.2°C with nights around 5.7°C. Expect roughly 12.4 wet days totalling 110.8mm. Generally workable, with some weather to plan around.
May in Cincinnati averages a daily high of 24.2°C with nights around 11.5°C. Expect roughly 13.7 wet days totalling 125.4mm. Generally workable, with some weather to plan around.
June in Cincinnati averages a daily high of 28.5°C with nights around 16.2°C. Expect roughly 12.3 wet days totalling 116.7mm. Generally workable, with some weather to plan around.
July in Cincinnati averages a daily high of 30.3°C with nights around 18.4°C. Expect roughly 12 wet days totalling 109.6mm. Generally workable, with some weather to plan around.
August in Cincinnati averages a daily high of 30.1°C with nights around 17.7°C. Expect roughly 9.4 wet days totalling 82.3mm. Generally workable, with some weather to plan around.
September in Cincinnati averages a daily high of 26.8°C with nights around 13.4°C. Expect roughly 8.7 wet days totalling 82mm. Comfortable conditions for being outdoors all day.
October in Cincinnati averages a daily high of 20.1°C with nights around 6.9°C. Expect roughly 9.1 wet days totalling 79.6mm. Comfortable conditions for being outdoors all day.
November in Cincinnati averages a daily high of 12.9°C with nights around 0.9°C. Expect roughly 9.8 wet days totalling 71.2mm. Generally workable, with some weather to plan around.
December in Cincinnati averages a daily high of 7.3°C with nights around -2.2°C. Expect roughly 11.6 wet days totalling 88.4mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Cincinnati peaks at 83.
Based on 30 years of records, September–October scores highest for comfort in Cincinnati, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30.3°C.
May is the wettest, averaging 125.4mm of rain across roughly 13.7 wet days.
January is the coolest month, with average daily highs around 4.9°C.