ValueAnomalyRankMean

Divisional Palmer Z-Index

August - October 1974

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Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 0.75

Anomaly: 0.68

Rank: 41st Wettest

Mean: 0.07

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August - October 1974 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	0.96	0.92	97	0.04
2. East Central Mountains	1.01	0.92	97	0.09
3. Southeastern Piedmont	0.77	0.67	88	0.10
4. Lower Susquehanna	-0.43	-0.55	47	0.11
5. Middle Susquehanna	0.23	0.13	76	0.10
6. Upper Susquehanna	0.21	0.13	66	0.08
7. Central Mountains	0.77	0.73	92	0.04
8. South Central Mountains	-0.68	-0.69	41	0.01
9. Southwest Plateau	1.21	1.19	106	0.02
10. Northwest Plateau	1.02	0.99	96	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping