Hillsboro (OH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hillsboro.
Climate overview of Hillsboro
Hillsboro, Ohio, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and January dropping to 3°C (37°F).
Rain/snowfall is high, totalling around 1161 mm (46 in) per year. April is the wettest month and January the driest. The city also experiences warm summers and cold winters.
Hillsboro Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hillsboro - and find the best time to visit.
Monthly Temperature in Hillsboro
Visitors to Hillsboro can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a chilly 3°C (37°F) during cooler months like January.
At night, you can expect temperatures ranging from 17°C (63°F) in July to around -7°C (19°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hillsboro
Hillsboro is known for its substantial rain/snowfall, with annual precipitation reaching 1161 mm (46 in). While rainfall varies throughout the year, each season offers its own charm. April brings wetter days averaging 125 mm (4.9 in) of precipitation, spread over 13 rainy days.
In contrast, the driest month January experiences a drier climate, with about 70 mm (2.8 in) of snow/rainfall spread across 14 snowy/rainy days. For more details, please visit our Hillsboro Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Hillsboro
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: June, July and August
- Fewer rainy days: July, 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 Hillsboro
What is the best time to visit Hillsboro?
August and September typically offer the most optimal weather in Hillsboro. In contrast, January, February, March and December tend to have less optimal conditions. Hillsboro has warm summers and cold winters.
What temperatures can I expect in Hillsboro?
Daytime highs range from 3°C (37°F) in January to 29°C (84°F) in July. Nighttime lows range from -7°C (19°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Hillsboro get?
Annual rainfall is around 1161 mm (46 in). April is the wettest month with 125 mm (4.9 in), while January is the driest with 70 mm (2.8 in).
Hillsboro 3-Day Forecast
Hillsboro (OH) 3-Day Forecast
Hillsboro on the map
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