Weather Forecast Accuracy Last Month (August)

Weather Forecast Accuracy Last Year (2021)

Weather Changeability for Portland, Oregon

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

6.2°

Last Year:

4.6°

Average change in low temperature day-to-day

Last Month:

4.1°

Last Year:

4.5°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

100%

Last Year:

34%

Chance of precip day after a dry day

Last Month:

0%

Last Year:

15%

ForecastAdvisor Fact

On average, Persistence's low temperature forecasts for Portland were off by 4.39 degrees last month.

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