South Milwaukee Wwtp, WI Climate

Climate Insight: South Milwaukee Wwtp, WI

The NOAA 1991–2020 climate normals describe South Milwaukee Wwtp, Wisconsin as a location with an annual average temperature of 48°F, ranging from a mean daily high of 56°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00477964, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. South Milwaukee Wwtp receives roughly 36.6 inches of precipitation each year, predominantly as rainfall. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 22 and the first fall freeze near October 26. For energy use, 6,679 heating degree days and 661 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, South Milwaukee Wwtp scores 67/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.