ValueAnomalyRankMean

Divisional Palmer Z-Index

November 1998 - January 1999

-4-3-2-11234

Idaho (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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November 1998 - January 1999 Idaho Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Panhandle	1.21	1.42	116	-0.21
2. North Central Prairies	1.49	1.44	114	0.05
3. North Central Canyons	1.80	1.65	113	0.16
4. Central Mountains	1.21	1.19	112	0.01
5. Southwestern Valleys	0.35	0.36	89	-0.01
6. Southwestern Highlands	-0.19	-0.20	59	0.01
7. Central Plains	0.69	0.68	95	0.01
8. Northeastern Valleys	1.08	0.91	104	0.17
9. Upper Snake River Plains	0.55	0.56	95	-0.01
10. Eastern Highlands	-0.37	-0.29	57	-0.07

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published May 2025, retrieved on June 6, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping