Weather Forecast Accuracy Last Month (September)

Weather Forecast Accuracy Last Year (2020)

Weather Changeability for Des Moines, Iowa

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

4.3°

Last Year:

6.8°

Average change in low temperature day-to-day

Last Month:

5.8°

Last Year:

6.7°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

86%

Last Year:

62%

Chance of precip day after a dry day

Last Month:

31%

Last Year:

21%

ForecastAdvisor Fact

70.0% of Wetter's low temperature forecasts for Des Moines were within 3 degrees of actual temperatures last month.

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