ValueAnomalyRankMean

Divisional Palmer Z-Index

November 1977 - January 1978

-4-3-2-11234

Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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November 1977 - January 1978 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	0.75	0.96	102	-0.21
2. North Central Prairies	2.20	2.16	121	0.05
3. North Central Canyons	2.30	2.14	120	0.16
4. Central Mountains	2.01	1.99	120	0.01
5. Southwestern Valleys	1.90	1.91	117	-0.01
6. Southwestern Highlands	1.24	1.23	108	0.01
7. Central Plains	1.62	1.61	114	0.01
8. Northeastern Valleys	1.91	1.74	114	0.17
9. Upper Snake River Plains	0.88	0.89	103	-0.01
10. Eastern Highlands	1.71	1.79	114	-0.07

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping