ValueAnomalyRankMean

Divisional Palmer Z-Index

December 2017 - February 2018

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Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 1.09

Anomaly: 0.99

Rank: 22nd Wettest

Mean: 0.10

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December 2017 - February 2018 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	0.84	0.78	103	0.06
2. East Central Mountains	1.09	0.95	106	0.14
3. Southeastern Piedmont	0.74	0.62	93	0.12
4. Lower Susquehanna	0.34	0.22	86	0.11
5. Middle Susquehanna	0.75	0.61	97	0.14
6. Upper Susquehanna	0.29	0.27	73	0.02
7. Central Mountains	1.18	1.08	112	0.09
8. South Central Mountains	0.80	0.72	100	0.08
9. Southwest Plateau	2.07	1.96	124	0.11
10. Northwest Plateau	0.88	0.82	99	0.07

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