ValueAnomalyRankMean

Divisional Palmer Z-Index

July - September 1921

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Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 0.04

Anomaly: -0.01

Rank: 65th

Mean: 0.05

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July - September 1921 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-0.60	-0.59	44	-0.01
2. East Central Mountains	-0.39	-0.42	50	0.03
3. Southeastern Piedmont	-1.23	-1.29	24	0.06
4. Lower Susquehanna	0.39	0.19	77	0.20
5. Middle Susquehanna	-0.59	-0.69	44	0.10
6. Upper Susquehanna	-0.50	-0.60	46	0.10
7. Central Mountains	0.86	0.84	95	0.01
8. South Central Mountains	0.96	0.94	99	0.02
9. Southwest Plateau	1.04	1.06	101	-0.01
10. Northwest Plateau	0.42	0.42	87	0.00

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping