Weather Forecast Accuracy Last Month (December)

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Weather Forecast Accuracy Last Year (2025)

Weather Changeability for Indianapolis, Indiana

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

9.1°

Last Year:

5.6°

Average change in low temperature day-to-day

Last Month:

11.7°

Last Year:

7.4°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

50%

Last Year:

56%

Chance of precip day after a dry day

Last Month:

33%

Last Year:

28%

ForecastAdvisor Fact

7.3% of Wetter.com's low temperature forecasts for Indianapolis were off by more than 10 degrees last year.

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