West Lafayette, IN Weather & Climate Normals
West Lafayette's real weather, in one number
West Lafayette, IN scores 49/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
West Lafayette's hottest and coldest months
West Lafayette's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 26°F, a 47.8°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in West Lafayette
Over a typical year, West Lafayette sees about 37in of precipitation a year across roughly 126 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where West Lafayette ranks
West Lafayette ranks 2062 of 4876 US cities in this dataset for comfort score, and 24 of 126 within IN. About 46,338 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from LAFAYETTE PURDUE UNIV AP, IN US, 2.3 miles from West Lafayette, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is