Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Pennsylvania, Climate Division 4

November 1925 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 1925 1-Month	1.15	-0.21	1.36	96th Driest	Driest since: 1924	1930
November 1925 1-Month	1.15	-0.21	1.36	35th Wettest	Wettest since: 1919	2018
Oct–Nov 1925 2-Month	2.24	-0.12	2.36	123rd Driest	Driest since: 1924	1930
Oct–Nov 1925 2-Month	2.24	-0.12	2.36	8th Wettest	Wettest to Date	1932
Sep–Nov 1925 3-Month	0.84	-0.02	0.86	96th Driest	Driest since: 1924	1930
Sep–Nov 1925 3-Month	0.84	-0.02	0.86	35th Wettest	Wettest since: 1917	2018
Aug–Nov 1925 4-Month	0.22	0.03	0.19	75th Driest	Driest since: 1924	1930
Aug–Nov 1925 4-Month	0.22	0.03	0.19	56th Wettest	Wettest since: 1921	2018
Jul–Nov 1925 5-Month	0.43	0.07	0.36	82nd Driest	Driest since: 1924	1930
Jul–Nov 1925 5-Month	0.43	0.07	0.36	49th Wettest	Wettest since: 1920	2018
Jun–Nov 1925 6-Month	0.01	0.09	-0.08	61st Driest	Driest since: 1922	1930
Jun–Nov 1925 6-Month	0.01	0.09	-0.08	70th Wettest	Wettest since: 1924	2018
May–Nov 1925 7-Month	-0.14	0.04	-0.18	56th Driest	Driest since: 1922	1930
May–Nov 1925 7-Month	-0.14	0.04	-0.18	75th Wettest	Wettest since: 1924	2018
Apr–Nov 1925 8-Month	-0.29	0.04	-0.33	48th Driest	Driest since: 1922	1930
Apr–Nov 1925 8-Month	-0.29	0.04	-0.33	83rd Wettest	Wettest since: 1924	2018
Mar–Nov 1925 9-Month	-0.41	0.03	-0.44	38th Driest	Driest since: 1922	1930
Mar–Nov 1925 9-Month	-0.41	0.03	-0.44	93rd Wettest	Wettest since: 1924	2018
Feb–Nov 1925 10-Month	-0.50	0.04	-0.54	35th Driest	Driest since: 1922	1930
Feb–Nov 1925 10-Month	-0.50	0.04	-0.54	96th Wettest	Wettest since: 1924	2018
Jan–Nov 1925 11-Month	-0.33	0.06	-0.39	44th Driest	Driest since: 1922	1930
Jan–Nov 1925 11-Month	-0.33	0.06	-0.39	87th Wettest	Wettest since: 1924	2018
Dec 1924–Nov 1925 12-Month	-0.40	0.05	-0.45	37th Driest	Driest since: 1922	1930
Dec 1924–Nov 1925 12-Month	-0.40	0.05	-0.45	93rd Wettest	Wettest since: 1924	2018
Jun 1924–Nov 1925 18-Month	-0.11	0.06	-0.17	49th Driest	Driest since: 1923	1931
Jun 1924–Nov 1925 18-Month	-0.11	0.06	-0.17	81st Wettest	Wettest since: 1924	2019
Dec 1923–Nov 1925 24-Month	0.32	0.05	0.27	84th Driest	Driest since: 1923	1931
	0.32	0.05	0.27	45th Wettest	Wettest since: 1924	2019
	Ties: 1899
Dec 1922–Nov 1925 36-Month	0.11	0.05	0.06	69th Driest	Driest since: 1924	1966
Dec 1922–Nov 1925 36-Month	0.11	0.05	0.06	59th Wettest	Wettest since: 1921	2019
Dec 1921–Nov 1925 48-Month	-0.10	0.05	-0.15	37th Driest	Driest since: 1923	1966
Dec 1921–Nov 1925 48-Month	-0.10	0.05	-0.15	90th Wettest	Wettest since: 1924	1996
Dec 1920–Nov 1925 60-Month	-0.14	0.06	-0.20	27th Driest	Driest since: 1913	1966
Dec 1920–Nov 1925 60-Month	-0.14	0.06	-0.20	99th Wettest	Wettest since: 1924	1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Pennsylvania, Climate Division 4

November 1925 Palmer Z-Index Rankings

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