Grafton

What is the climate like in Grafton?

The best time to visit Grafton is typically September, the year's most comfortable month (6.5/10). Grafton is warmest in July, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically May and the driest is November; the year sees roughly 58 in (1463 mm) of precipitation.

• Best time to visitSeptember — the year's comfort peak (6.5/10)
• Warmest monthJuly — average high 82°F (28°C)
• Coolest monthJanuary — average low 26°F (-3°C)
• Wettest monthMay (6.3 in (161 mm))
• Driest monthNovember (3.7 in (94 mm))
• Annual precipitation58 in (1463 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromFairmont, 16 km away (1905-2026)