In the United States new 30-year normals are calculated every ten years. The most recent normals (using 1991-2020 data) are listed below, along with the previous set of normals (from 1981-2010), and the difference between the two normals packages. Click on the images to see larger versions.
Or, click here to see comparisons between the new normals and the previous (1981-2010) set of normals in graphical format for local cities (BWG, FFT, LEX, SDF, LOU).
TEMPERATURE
ANNUAL | ||||||||
1991-2020 | Difference Between Old and New | 1981-2010 | ||||||
Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum |
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SEASONAL | |||||||||
1991-2020 | Difference Between Old and New | 1981-2010 | |||||||
Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum | |
Spring | ![]() |
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Summer | ![]() |
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Autumn | ![]() |
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Winter | ![]() |
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PRECIPITATION
ANNUAL | |||
Difference Between Old and New | |||
1991-2020 | Percentage Change | Value Difference | 1981-2010 |
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SEASONAL | ||||
Difference Between Old and New | ||||
1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
Spring | ![]() |
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Summer | ![]() |
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Autumn | ![]() |
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Winter | ![]() |
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MONTHLY | ||||
Difference Between Old and New | ||||
1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
January | ![]() |
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February | ![]() |
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March | ![]() |
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April | ![]() |
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May | ![]() |
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June | ![]() |
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July | ![]() |
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August | ![]() |
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September | ![]() |
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October | ![]() |
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November | ![]() |
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December | ![]() |
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DEW POINT
The following maps are from the PRISM Climate Group at Oregon State University
January | February | March | April |
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May | June | July | August |
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September | October | November | December |
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