ValueAnomalyRankMean

Divisional Palmer Z-Index Rank (130 years)

October - December 1988

Driest⇣⅒⇣ ⅓Near Normal⇡ ⅓⇡⅒Wettest

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1988 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-0.63	-0.58	36	-0.05
2. East Central Mountains	-0.65	-0.64	36	-0.02
3. Southeastern Piedmont	-0.55	-0.51	41	-0.03
4. Lower Susquehanna	-1.49	-1.42	21	-0.07
5. Middle Susquehanna	-1.09	-1.01	30	-0.08
6. Upper Susquehanna	-1.37	-1.28	20	-0.09
7. Central Mountains	-0.98	-0.88	29	-0.10
8. South Central Mountains	-0.90	-0.80	32	-0.10
9. Southwest Plateau	-0.58	-0.55	38	-0.03
10. Northwest Plateau	0.10	0.14	68	-0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 21, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping