ValueAnomalyRankMean

Divisional Palmer Z-Index Anomaly

August - October 1920

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Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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August - October 1920 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	0.77	0.72	92	0.04
2. East Central Mountains	0.41	0.32	77	0.09
3. Southeastern Piedmont	0.18	0.08	73	0.10
4. Lower Susquehanna	0.55	0.44	87	0.11
5. Middle Susquehanna	0.91	0.81	92	0.10
6. Upper Susquehanna	0.45	0.37	78	0.08
7. Central Mountains	0.06	0.02	63	0.04
8. South Central Mountains	0.50	0.49	82	0.01
9. Southwest Plateau	-0.14	-0.16	55	0.02
10. Northwest Plateau	-1.26	-1.30	22	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 18, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping