ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1899

-4-3-2-11234

Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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September - November 1899 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	1.20	1.30	112	-0.10
2. North Central Prairies	0.85	0.81	104	0.04
3. North Central Canyons	0.72	0.65	101	0.07
4. Central Mountains	0.69	0.68	100	0.01
5. Southwestern Valleys	0.94	0.97	115	-0.03
6. Southwestern Highlands	0.02	-0.02	72	0.03
7. Central Plains	0.22	0.13	74	0.10
8. Northeastern Valleys	0.02	-0.10	68	0.12
9. Upper Snake River Plains	0.22	0.16	78	0.06
10. Eastern Highlands	0.07	0.05	75	0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 9, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping