Norwalk, IA Weather & Climate Normals
Norwalk's real weather, in one number
Norwalk, IA scores 43/100 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.
Norwalk's hottest and coldest months
Norwalk's hottest month is Jul, averaging 75°F; its coldest is Jan, averaging 22°F, a 53.1°F swing across the year, one of the widest gaps in this dataset.
Rain and snow in Norwalk
Norwalk averages 37.8in of precipitation a year across roughly 96 days with measurable rain or snow, and 30.8in of snow a year.
Where Norwalk ranks
Norwalk ranks 4030 of 4876 US cities in this dataset for comfort score, and 35 of 85 within IA. About 15,396 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from INDIANOLA 2W, IA US, 8.5 miles from Norwalk, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure