ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 2005

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Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 0.67

Anomaly: 0.68

Rank: 41st Wettest

Mean: -0.01

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October - December 2005 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	-0.35	-0.11	63	-0.24
2. North Central Prairies	-0.56	-0.55	48	-0.01
3. North Central Canyons	-0.26	-0.32	56	0.06
4. Central Mountains	0.57	0.59	93	-0.02
5. Southwestern Valleys	1.93	1.97	121	-0.03
6. Southwestern Highlands	1.32	1.31	113	0.01
7. Central Plains	1.20	1.14	111	0.06
8. Northeastern Valleys	0.49	0.32	85	0.17
9. Upper Snake River Plains	1.29	1.27	112	0.02
10. Eastern Highlands	1.15	1.20	105	-0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping