Cincinnati weather in December
December in Cincinnati: cold, rainy, with clean air — a good time to visit.
#10 of 12 months in Cincinnati · #616 of 897 destinations to visit in December · comfort 61/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cincinnati in December
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Cincinnati climate normals — December
| Daytime high | 8°C / 47°F | 🧥 cold |
|---|---|---|
| Nighttime low | 0°C / 33°F | |
| Rainfall | 93 mm / 3.6 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 73% | 💧 humid |
| Dew point | -1°C / 29°F | |
| Sunshine | 5 h/day | |
| Daylight | 9.5 h | |
| Wind | 17 km/h / 10 mph | |
| Snowfall | 4.3 cm / 1.7 in | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cincinnati in December — FAQ
- Is December a good time to visit Cincinnati?
- December in Cincinnati: cold, rainy, with clean air — a good time to visit. It ranks #10 of 12 months for Cincinnati on SeasonMap's comfort score (61/100).
- What is the weather like in Cincinnati in December?
- In December, Cincinnati averages a daily high of 8.3°C and a low of 0.4°C, with about 92.6 mm of rain over roughly 9.8 rainy days.
- What is the air quality in Cincinnati in December?
- Cincinnati has a mean US Air Quality Index of about 37 in December.
- Does it snow in Cincinnati in December?
- Cincinnati sees roughly 4.3 cm of snowfall in December.