Tupper Lake Sunmount, NY Climate

Climate Insight: Tupper Lake Sunmount, NY

An annual average temperature of 42°F, ranging from a mean daily high of 52°F to a mean daily low of 31°F is what the NOAA 1991–2020 climate normals report for Tupper Lake Sunmount, New York. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00308631 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Tupper Lake Sunmount sees about 45.0 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 135 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 16 and the first fall freeze near September 28. On the energy side, 8,746 heating degree days and 222 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Tupper Lake Sunmount scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.