Alton

What is the climate like in Alton?

The best time to visit Alton is typically June – August, with trip comfort peaking in July (7.0/10). Alton is warmest in July, when daily highs average 72°F (22°C), and coolest in January, when lows fall to about 36°F (2°C). The wettest month is typically October and the driest is April; the year sees roughly 31 in of precipitation.

• Best time to visitJune – August — comfort peaks in July (7.0/10)
• Warmest monthJuly — average high 72°F (22°C)
• Coolest monthJanuary — average low 36°F (2°C)
• Wettest monthOctober (3.5 in)
• Driest monthApril (1.9 in)
• Annual precipitation31 in