Weather Forecast Accuracy Last Month (August)

Weather Forecast Accuracy Last Year (2020)

Weather Changeability for Portland, Maine

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

5.5°

Last Year:

6.2°

Average change in low temperature day-to-day

Last Month:

4.1°

Last Year:

7.6°

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:

27%

Last Year:

27%

ForecastAdvisor Fact

42.2% of Persistence's high temperature forecasts for Portland were within 3 degrees of actual temperatures last month.

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