ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1919

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Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 0.53

Anomaly: 0.54

Rank: 48th Wettest

Mean: -0.01

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October - December 1919 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	-1.99	-1.76	10	-0.24
2. North Central Prairies	0.53	0.54	86	-0.01
3. North Central Canyons	1.02	0.95	99	0.06
4. Central Mountains	0.41	0.43	87	-0.02
5. Southwestern Valleys	0.92	0.96	107	-0.03
6. Southwestern Highlands	0.30	0.29	77	0.01
7. Central Plains	0.05	-0.01	69	0.06
8. Northeastern Valleys	1.26	1.10	106	0.17
9. Upper Snake River Plains	-0.05	-0.07	68	0.02
10. Eastern Highlands	0.57	0.62	90	-0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 17, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping