Climate almanac
Harrison
Ohio, United States · 39.26°, -84.82°
What is the climate like in Harrison?
The best time to visit Harrison is typically August – October, with trip comfort peaking in September (7.3/10). Harrison is warmest in July, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 27°F (-3°C). The wettest month is typically July and the driest is September; the year sees roughly 46 in (1173 mm) of precipitation.
- Best time to visitAugust – October — comfort peaks in September (7.3/10)
- Warmest monthJuly — average high 86°F (30°C)
- Coolest monthJanuary — average low 27°F (-3°C)
- Wettest monthJuly (4.8 in (123 mm))
- Driest monthSeptember (2.8 in (71 mm))
- Annual precipitation46 in (1173 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromBrookville, 25 km away (1925-2026)