Decorah Weather in September
In Decorah, September brings high daytime temperatures around 24°C (75°F), with nights cooling to 11°C (52°F). Expect quite a bit of rainfall this month.
Rainfall in Decorah in September
Typically, about 10 days will experience rainfall, with an average of 91 mm (3.6 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Decorah in September
September is one of the better months to visit Decorah. Expect 24°C (75°F) during the day and 11°C (52°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Decorah's climate page.
Decorah Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
24°C (75°F)
Chance of Rain
33%
Precipitation
91 mm (3.6 in)
Rainy days
10 days
Humidity
76% *
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Decorah in September
For Decorah in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Decorah in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Decorah's climate page.
See the full Decorah climate overview or explore weather in the United States of America.
