Weather Forecast Accuracy Last Month (December)

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Weather Forecast Accuracy Last Year (2025)

Weather Changeability for Lancaster, Ohio

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

8.8°

Last Year:

6.1°

Average change in low temperature day-to-day

Last Month:

12.3°

Last Year:

8.6°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

73%

Last Year:

55%

Chance of precip day after a dry day

Last Month:

37%

Last Year:

25%

ForecastAdvisor Fact

75.2% of NWS Digital Forecast's high temperature forecasts for Lancaster were within 3 degrees of actual temperatures last year.

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