Sumner Lake Wind Forecast
Sumner Lake Wind Statistics
August Wind
Copper Harbor (53.4 miles)
Strongest 3 August, 2026
11.4mph SWAverage August
6.3mph
Climate (2021–2026)
Copper Harbor (53.4 miles)
Strongest 11 November, 2024
62mph NNEAverage 2021–2026
9.2mph