Weather Forecast Accuracy Last Month (December)

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Weather Forecast Accuracy Last Year (2025)

Weather Changeability for Hammond, Illinois

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

9.9°

Last Year:

5.9°

Average change in low temperature day-to-day

Last Month:

14.3°

Last Year:

8.2°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

100%

Last Year:

63%

Chance of precip day after a dry day

Last Month:

11%

Last Year:

18%

ForecastAdvisor Fact

On average, Wetter.com's low temperature forecasts for Hammond were off by 7.96 degrees last month.

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