Weather Forecast Accuracy Last Month (December)

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Weather Forecast Accuracy Last Year (2025)

Weather Changeability for Topsham, Maine

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

8.6°

Last Year:

5.7°

Average change in low temperature day-to-day

Last Month:

9.2°

Last Year:

7.6°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

60%

Last Year:

59%

Chance of precip day after a dry day

Last Month:

32%

Last Year:

30%

ForecastAdvisor Fact

1.2% of Open-Meteo's low temperature forecasts for Topsham were exactly right last month.

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