Delphi, IN Climate

Climate Insight: Delphi, IN

Based on station USC00122149 feeding NOAA's 1991–2020 climate normals, Delphi, Indiana averages 52°F a year, ranging from a mean daily high of 62°F to a mean daily low of 42°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.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Delphi sees about 39.0 inches of precipitation a year, with 17.2 inches typically falling as snow. The frost-free season averages 178 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 22 and the first fall freeze near October 17. On the energy side, 5,570 heating degree days and 928 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Delphi scores 64/100 (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.