Weather Forecast Accuracy Last Month (December)

Weather Forecast Accuracy Last Year (2022)

Weather Changeability for Fullerton, California

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

3.9°

Last Year:

3.9°

Average change in low temperature day-to-day

Last Month:

3.1°

Last Year:

3.1°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

25%

Last Year:

59%

Chance of precip day after a dry day

Last Month:

14%

Last Year:

5%

ForecastAdvisor Fact

45.3% of Persistence's high temperature forecasts for Fullerton were within 3 degrees of actual temperatures last year.

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