Charlestown

What is the climate like in Charlestown?

The best time to visit Charlestown is typically August – October, with trip comfort peaking in September (7.0/10). Charlestown is warmest in July, when daily highs average 87°F (30°C), and coolest in January, when lows fall to about 28°F (-2°C). The wettest month is typically April and the driest is October; the year sees roughly 50 in (1276 mm) of precipitation.

• Best time to visitAugust – October — comfort peaks in September (7.0/10)
• Warmest monthJuly — average high 87°F (30°C)
• Coolest monthJanuary — average low 28°F (-2°C)
• Wettest monthApril (5.2 in (131 mm))
• Driest monthOctober (3.0 in (77 mm))
• Annual precipitation50 in (1276 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromLouisville Mcalpine, 22 km away (1950-2026)