Mason City, NE Climate

Climate Insight: Mason City, NE

Based on station USC00255250 feeding NOAA's 1991–2020 climate normals, Mason City, Nebraska averages 50°F a year, ranging from a mean daily high of 62°F to a mean daily low of 37°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

Mason City averages 26.3 inches of precipitation a year, with 25.9 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 155 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 3 and the first fall freeze near October 5. As for energy demand, 6,477 heating degree days and 875 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Mason City scores 59/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.