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 2

November 1964 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 1964 1-Month	-2.75	-0.28	-2.47	8th Driest	Driest since: 1946	1931
November 1964 1-Month	-2.75	-0.28	-2.47	123rd Wettest	Wettest since: 1963	2018
Oct–Nov 1964 2-Month	-2.79	-0.07	-2.72	3rd Driest	Driest since: 1930	2024
Oct–Nov 1964 2-Month	-2.79	-0.07	-2.72	128th Wettest	Wettest since: 1963	1932
Sep–Nov 1964 3-Month	-2.52	-0.03	-2.49	3rd Driest	Driest since: 1930	2024
Sep–Nov 1964 3-Month	-2.52	-0.03	-2.49	128th Wettest	Wettest since: 1963	2011
Aug–Nov 1964 4-Month	-2.69	0.00	-2.69	2nd Driest	Driest since: 1930	1930
Aug–Nov 1964 4-Month	-2.69	0.00	-2.69	129th Wettest	Wettest since: 1963	2011
Jul–Nov 1964 5-Month	-2.57	-0.01	-2.56	1st Driest	Driest to Date	1964
Jul–Nov 1964 5-Month	-2.57	-0.01	-2.56	130th Wettest	Wettest since: 1963	2018
Jun–Nov 1964 6-Month	-2.22	0.01	-2.23	2nd Driest	Driest since: 1930	1930
Jun–Nov 1964 6-Month	-2.22	0.01	-2.23	129th Wettest	Wettest since: 1963	2018
May–Nov 1964 7-Month	-2.33	-0.04	-2.29	1st Driest	Driest to Date	1964
May–Nov 1964 7-Month	-2.33	-0.04	-2.29	130th Wettest	Wettest since: 1963	2018
Apr–Nov 1964 8-Month	-1.70	-0.02	-1.68	2nd Driest	Driest since: 1930	1930
Apr–Nov 1964 8-Month	-1.70	-0.02	-1.68	129th Wettest	Wettest since: 1963	2018
Mar–Nov 1964 9-Month	-1.66	-0.01	-1.65	2nd Driest	Driest since: 1930	1930
Mar–Nov 1964 9-Month	-1.66	-0.01	-1.65	129th Wettest	Wettest since: 1963	2011
Feb–Nov 1964 10-Month	-1.49	0.01	-1.50	3rd Driest	Driest since: 1941	1941
Feb–Nov 1964 10-Month	-1.49	0.01	-1.50	128th Wettest	Wettest since: 1963	2018
Jan–Nov 1964 11-Month	-1.20	0.03	-1.23	7th Driest	Driest since: 1963	1930
Jan–Nov 1964 11-Month	-1.20	0.03	-1.23	124th Wettest	Wettest since: 1962	2018
Dec 1963–Nov 1964 12-Month	-1.20	0.03	-1.23	4th Driest	Driest since: 1941	1930
Dec 1963–Nov 1964 12-Month	-1.20	0.03	-1.23	126th Wettest	Wettest since: 1963	2018
Jun 1963–Nov 1964 18-Month	-1.23	0.02	-1.25	3rd Driest	Driest since: 1931	1965
Jun 1963–Nov 1964 18-Month	-1.23	0.02	-1.25	127th Wettest	Wettest since: 1963	2019
Dec 1962–Nov 1964 24-Month	-1.19	0.03	-1.22	3rd Driest	Driest since: 1931	1931
Dec 1962–Nov 1964 24-Month	-1.19	0.03	-1.22	126th Wettest	Wettest since: 1963	2019
Dec 1961–Nov 1964 36-Month	-0.89	0.03	-0.92	4th Driest	Driest since: 1932	1965
Dec 1961–Nov 1964 36-Month	-0.89	0.03	-0.92	124th Wettest	Wettest since: 1963	2019
Dec 1960–Nov 1964 48-Month	-0.74	0.03	-0.77	4th Driest	Driest to Date	1966
Dec 1960–Nov 1964 48-Month	-0.74	0.03	-0.77	123rd Wettest	Wettest since: 1963	2021
Dec 1959–Nov 1964 60-Month	-0.49	0.03	-0.52	6th Driest	Driest to Date	1966
Dec 1959–Nov 1964 60-Month	-0.49	0.03	-0.52	120th Wettest	Wettest since: 1963	1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 26, 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 2

November 1964 Palmer Z-Index Rankings

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