Decatur, IN Weather & Climate Normals
What a normal year in Decatur actually looks like
On the 30-year record NOAA keeps for Decatur, IN, the comfort score comes out to 46/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Decatur's weather actually swings
Average temperatures in Decatur run from 26°F in Jan up to 73°F in Jul, a 47.6°F seasonal swing, one of the widest gaps in this dataset.
How wet Decatur actually gets
Over a typical year, Decatur sees about 40.62in of precipitation a year across roughly 127 days with measurable rain or snow, with 28.1in of snow a year.
Decatur against the rest of the country
Out of 4876 cities scored here, Decatur comes in at 3102; within IN alone it ranks 76 of 126. Population is about 10,072.
Checking the actual forecast
These figures come from DECATUR 1 N, IN US, the NOAA station 1.3 miles from Decatur, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated