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 1902 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 1902 1-Month	-0.54	-0.21	-0.33	61st Driest	Driest since: 1901	1930
November 1902 1-Month	-0.54	-0.21	-0.33	70th Wettest	Wettest since: 1899	2018
Oct–Nov 1902 2-Month	0.88	-0.12	1.00	91st Driest	Driest since: 1901	1930
Oct–Nov 1902 2-Month	0.88	-0.12	1.00	40th Wettest	Wettest since: 1898	1932
Sep–Nov 1902 3-Month	0.71	-0.02	0.73	94th Driest	Driest since: 1901	1930
Sep–Nov 1902 3-Month	0.71	-0.02	0.73	37th Wettest	Wettest to Date	2018
Aug–Nov 1902 4-Month	0.37	0.03	0.34	84th Driest	Driest since: 1901	1930
Aug–Nov 1902 4-Month	0.37	0.03	0.34	47th Wettest	Wettest since: 1899	2018
Jul–Nov 1902 5-Month	0.40	0.07	0.33	80th Driest	Driest since: 1901	1930
Jul–Nov 1902 5-Month	0.40	0.07	0.33	51st Wettest	Wettest since: 1898	2018
Jun–Nov 1902 6-Month	0.53	0.09	0.44	85th Driest	Driest since: 1901	1930
Jun–Nov 1902 6-Month	0.53	0.09	0.44	46th Wettest	Wettest to Date	2018
May–Nov 1902 7-Month	0.04	0.04	0.00	63rd Driest	Driest since: 1901	1930
May–Nov 1902 7-Month	0.04	0.04	0.00	68th Wettest	Wettest since: 1899	2018
Apr–Nov 1902 8-Month	0.01	0.04	-0.03	66th Driest	Driest since: 1901	1930
Apr–Nov 1902 8-Month	0.01	0.04	-0.03	65th Wettest	Wettest since: 1898	2018
Mar–Nov 1902 9-Month	0.12	0.03	0.09	70th Driest	Driest since: 1901	1930
Mar–Nov 1902 9-Month	0.12	0.03	0.09	61st Wettest	Wettest since: 1898	2018
Feb–Nov 1902 10-Month	0.47	0.04	0.43	91st Driest	Driest since: 1901	1930
Feb–Nov 1902 10-Month	0.47	0.04	0.43	40th Wettest	Wettest to Date	2018
Jan–Nov 1902 11-Month	0.48	0.06	0.42	94th Driest	Driest since: 1901	1930
Jan–Nov 1902 11-Month	0.48	0.06	0.42	37th Wettest	Wettest to Date	2018
Dec 1901–Nov 1902 12-Month	0.72	0.05	0.67	104th Driest	Driest since: 1901	1930
Dec 1901–Nov 1902 12-Month	0.72	0.05	0.67	26th Wettest	Wettest to Date	2018
Jun 1901–Nov 1902 18-Month	0.32	0.06	0.26	84th Driest	Driest since: 1901	1931
Jun 1901–Nov 1902 18-Month	0.32	0.06	0.26	46th Wettest	Wettest since: 1899	2019
Dec 1900–Nov 1902 24-Month	0.13	0.05	0.08	70th Driest	Driest since: 1901	1931
Dec 1900–Nov 1902 24-Month	0.13	0.05	0.08	59th Wettest	Wettest since: 1899	2019
Dec 1899–Nov 1902 36-Month	-0.15	0.05	-0.20	39th Driest	Driest since: 1901	1966
Dec 1899–Nov 1902 36-Month	-0.15	0.05	-0.20	89th Wettest	Wettest since: 1900	2019
Dec 1898–Nov 1902 48-Month	0.00	0.05	-0.05	50th Driest	Driest since: 1901	1966
Dec 1898–Nov 1902 48-Month	0.00	0.05	-0.05	77th Wettest	Wettest to Date	1996
Dec 1897–Nov 1902 60-Month	0.04	0.06	-0.02	59th Driest	Driest since: 1901	1966
Dec 1897–Nov 1902 60-Month	0.04	0.06	-0.02	67th Wettest	Wettest to Date	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 1902 Palmer Z-Index Rankings

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