Monthly Temperature Averages and Climate for Ottumwa, IA

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Ottumwa, IA has a longitude of -92.5 degrees and a latitude of 41.1 degrees.

Ottumwa, IA has temperatures that can go as high as 80.6 °F in June, 86.0 °F in July, and 84.2 °F in August. The hottest month is typically July.

Ottumwa, IA also has temperatures that can go as low as 17.7 °F in December, 14.0 °F in January, and 17.7 °F in February. The coldest month is typically January.

The wettest month for Ottumwa, IA is August with 16.0 inches of rain.

The annual weather and monthly temperature averages for highs and lows are presented in the table below. The weather values used to interpolate these values are provided by the US NAOO weather station values from the last 10 years.

JanFebMarAprMayJunJulAugSepOctNovDec
Average High (°F)32.035.750.062.671.680.686.084.275.262.650.035.6
Average Low (°F)14.017.728.439.350.060.864.462.653.641.030.217.7
Average Precipitation (in)2.04.06.010.012.015.010.016.08.07.04.04.0
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Iowa has a humid continental climate throughout the state with extremes of both heat and cold. Snowfall is common, with Des Moines getting about 26 days of snowfall a year, and other places, such as Shenandoah getting about 11 days of snowfall in a year. Iowa summers are known for heat and humidity and winters in the state have been known to drop well below freezing. Spring ushers in the beginning of the severe weather season. Iowa averages about 50 days of thunderstorm activity per year.

In reality, each climate is unique and finding one that is suitable can be a real challenge! We hope that the information here can be the starting point of your weather and climate research for your next vacation or potentially next home.

We hope you use this information to make your travel plans to Ottumwa, IA or decide if living in the Ottumwa climate is the right choice for you!

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