ValueAnomalyRankMean

Divisional Palmer Z-Index

November 1922 - January 1923

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.24

Anomaly: -1.25

Rank: 14th Driest

Mean: 0.01

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November 1922 - January 1923 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-0.40	-0.36	58	-0.04
2. East Central Mountains	-1.22	-1.22	16	0.00
3. Southeastern Piedmont	-1.74	-1.72	10	-0.03
4. Lower Susquehanna	-1.62	-1.63	14	0.01
5. Middle Susquehanna	-0.95	-0.98	25	0.03
6. Upper Susquehanna	-1.30	-1.28	13	-0.02
7. Central Mountains	-0.86	-0.88	28	0.02
8. South Central Mountains	-1.69	-1.70	9	0.02
9. Southwest Plateau	-1.39	-1.46	9	0.07
10. Northwest Plateau	0.10	0.05	63	0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on April 6, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping