National Czech & Slovak Museum & Library in Cedar Rapids

Weather · September

Cedar Rapids weather in September

Average highs of 75°F, lows of 52°F and 3.4 in of rain, from 30 years of weather records.

September is Cedar Rapids’s 4th warmest month, with average highs of 75°F and lows of 52°F. That is 6° cooler than August, and 17° above the yearly average high.

Average high
75°F
Average low
52°F
Precipitation
3.4 in
Wet days
9
Sunrise · sunset
6:46 AM · 7:17 PM

September across the year

  1. 28°11°Jan
  2. 33°16°Feb
  3. 46°27°Mar
  4. 60°38°Apr
  5. 71°50°May
  6. 80°60°Jun
  7. 83°63°Jul
  8. 81°60°Aug
  9. 75°52°Sep
  10. 62°40°Oct
  11. 46°28°Nov
  12. 33°17°Dec

High and low Rain

What to wear in September

  • Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 9 days this month.

September is good for

What’s on in Cedar Rapids in September

See all upcoming events and school days off.

See Cedar Rapids

A look around town before you go.

September compared with the months around it

MonthHighLowRain
August81°F60°F4.1 in
September75°F52°F3.4 in
October62°F40°F2.9 in

Planning a trip? See the best time to visit Cedar Rapids and today’s forecast.

Questions

How hot does it get in Cedar Rapids in September?

Average highs are 75°F and average lows 52°F, for a daily mean of 63°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Cedar Rapids in September?

September averages 3.4 in of precipitation over about 9 days with at least 0.01 in. It is the 6th wettest month of the year.

What time is sunset in Cedar Rapids in September?

Around mid-September the sun rises about 6:46 AM and sets about 7:17 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Cedar Rapids?

Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Cedar Rapids Muni Ap station (5.9 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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