Chillicothe (OH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chillicothe.
Climate overview of Chillicothe
Temperatures in Chillicothe, Ohio, United States of America, vary greatly throughout the year. August is the hottest month at 29°C (84°F), while January is the coldest at 3°C (37°F).
The city has a wet climate, receiving around 1074 mm (42 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. June is the wettest month. Sunshine peaks in July, when the city sees around 8.7 hours of sunshine per day.
Chillicothe Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chillicothe - and find the best time to visit.
Monthly Temperature in Chillicothe
The climate in Chillicothe is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 29°C (84°F) in August to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 18°C (64°F) in August to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Chillicothe
Chillicothe has a notably wet climate with abundant precipitation, recording 1074 mm (42 in) of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 122 mm (4.8 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 67 mm (2.6 in) of rainfall. For more details, please visit our Chillicothe Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Chillicothe
In Chillicothe, summer days are longer and more sunny, with daily sunshine hours peaking at 8.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.8 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Chillicothe by Month
The relative humidity is high throughout the year in Chillicothe.
The city experiences its highest humidity in December, reaching 74%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Chillicothe
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July, August and September
- Warmest weather: June, July and August
- Most sunshine: June and July
- Fewest rainy days: August, September, October and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Chillicothe
What is the best time to visit Chillicothe?
July, August and September typically offer the most optimal weather in Chillicothe. In contrast, January, February and December tend to have less optimal conditions. Chillicothe has warm summers and cold winters.
What temperatures can I expect in Chillicothe?
Daytime highs range from 3°C (37°F) in January to 29°C (84°F) in August. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Chillicothe get?
Annual rainfall is around 1074 mm (42 in). June is the wettest month with 122 mm (4.8 in), while November is the driest with 67 mm (2.6 in).
How sunny is Chillicothe?
Chillicothe receives around 2,178 hours of sunshine per year. July is the sunniest month with 260 hours, while December is the cloudiest with just 84 hours. Overall, Chillicothe enjoys abundant sunshine.
Chillicothe 3-Day Forecast
Chillicothe on the map
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