Princeton, KY Climate

Climate Insight: Princeton, KY

Based on station USC00156580 feeding NOAA's 1991–2020 climate normals, Princeton, Kentucky averages 59°F a year, ranging from a mean daily high of 70°F to a mean daily low of 47°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.

Princeton averages 50.9 inches of precipitation a year, with 8.5 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 196 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 11 and the first fall freeze near October 24. As for energy demand, 3,853 heating degree days and 1,551 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Princeton scores 68/100 (Good), 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.