ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1979

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Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.15

Anomaly: -1.14

Rank: 33rd Driest

Mean: -0.01

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October - December 1979 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	-0.95	-0.71	42	-0.24
2. North Central Prairies	-0.85	-0.84	43	-0.01
3. North Central Canyons	-0.72	-0.78	46	0.06
4. Central Mountains	-1.12	-1.10	33	-0.02
5. Southwestern Valleys	0.02	0.06	68	-0.03
6. Southwestern Highlands	-0.33	-0.34	52	0.01
7. Central Plains	-0.53	-0.58	40	0.06
8. Northeastern Valleys	-1.18	-1.34	20	0.17
9. Upper Snake River Plains	-0.61	-0.63	37	0.02
10. Eastern Highlands	-1.26	-1.21	25	-0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 20, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping