Average temperature in Decorah (IA)
The mean minimum and maximum temperatures over the year in Decorah (Iowa), the United States of America.
- The months of May, June, July, August and September have nice average temperatures.
- Cold season / winter is in the months January, February and December.
- On average, the warmest month is July with 28°C.
- On average, the coolest month is January with -3°C.
- The average annual maximum temperature is 14°C.
- The average annual minimum temperature is 3°C.
Forecast for Decorah (IA)
partly cloudy and thunder
partly cloudy and thunder
broken clouds and no rain