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30-Year Averages

30-Year Normals based on 1981-2010 Period

The operational use of the new normals started October of 2012.
For more background information please read about their implementation.

The following links summarize the affects of changing normals.

Monthly 1981 - 2010 Normals, Idaho Data Collection Area Only

Monthly 1981 - 2010 Normals, West-wide using Report Generator

Daily 1981 - 2010 Normals, Idaho Data Collection Area Only

 

Previous 30-Year Averages (1971-2000)

Monthly Snow Averages