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 3

October 1933 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1933 1-Month	-0.41	0.11	-0.52	58th Driest	Driest since: 1931	2024
October 1933 1-Month	-0.41	0.11	-0.52	73rd Wettest	Wettest since: 1932	2005
Sep–Oct 1933 2-Month	0.36	0.10	0.26	72nd Driest	Driest since: 1932	2024
Sep–Oct 1933 2-Month	0.36	0.10	0.26	59th Wettest	Wettest since: 1929	2011
Aug–Oct 1933 3-Month	2.80	0.10	2.70	125th Driest	Driest since: 1932	1930
Aug–Oct 1933 3-Month	2.80	0.10	2.70	6th Wettest	Wettest to Date	2011
Jul–Oct 1933 4-Month	2.39	0.07	2.32	126th Driest	Driest since: 1932	1930
Jul–Oct 1933 4-Month	2.39	0.07	2.32	5th Wettest	Wettest to Date	2011
Jun–Oct 1933 5-Month	1.57	0.07	1.50	111th Driest	Driest since: 1932	2024
Jun–Oct 1933 5-Month	1.57	0.07	1.50	20th Wettest	Wettest since: 1911	2018
May–Oct 1933 6-Month	1.55	0.00	1.55	120th Driest	Driest since: 1932	1964
May–Oct 1933 6-Month	1.55	0.00	1.55	11th Wettest	Wettest to Date	2018
Apr–Oct 1933 7-Month	1.56	0.01	1.55	122nd Driest	Driest since: 1932	1963
Apr–Oct 1933 7-Month	1.56	0.01	1.55	9th Wettest	Wettest to Date	2018
Mar–Oct 1933 8-Month	1.66	0.01	1.65	126th Driest	Driest since: 1932	1930
Mar–Oct 1933 8-Month	1.66	0.01	1.65	5th Wettest	Wettest to Date	2011
Feb–Oct 1933 9-Month	1.52	0.03	1.49	126th Driest	Driest since: 1932	1963
Feb–Oct 1933 9-Month	1.52	0.03	1.49	5th Wettest	Wettest to Date	2018
Jan–Oct 1933 10-Month	1.20	0.04	1.16	123rd Driest	Driest since: 1932	1963
Jan–Oct 1933 10-Month	1.20	0.04	1.16	8th Wettest	Wettest since: 1902	2018
Dec 1932–Oct 1933 11-Month	1.05	0.04	1.01	119th Driest	Driest since: 1932	1963
Dec 1932–Oct 1933 11-Month	1.05	0.04	1.01	11th Wettest	Wettest since: 1903	1975
Nov 1932–Oct 1933 12-Month	1.25	0.01	1.24	121st Driest	Driest since: 1932	2002
Nov 1932–Oct 1933 12-Month	1.25	0.01	1.24	9th Wettest	Wettest since: 1902	2003
May 1932–Oct 1933 18-Month	0.69	0.01	0.68	110th Driest	Driest since: 1932	1965
May 1932–Oct 1933 18-Month	0.69	0.01	0.68	20th Wettest	Wettest since: 1928	2019
Nov 1931–Oct 1933 24-Month	0.29	0.01	0.28	86th Driest	Driest since: 1932	1966
	0.29	0.01	0.28	43rd Wettest	Wettest since: 1929	2019
	Ties: 1920
Nov 1930–Oct 1933 36-Month	-0.04	0.01	-0.05	54th Driest	Driest since: 1932	1965
Nov 1930–Oct 1933 36-Month	-0.04	0.01	-0.05	74th Wettest	Wettest since: 1929	1904
Nov 1929–Oct 1933 48-Month	-0.34	0.02	-0.36	14th Driest	Driest since: 1932	1966
Nov 1929–Oct 1933 48-Month	-0.34	0.02	-0.36	113th Wettest	Wettest since: 1931	2021
Nov 1928–Oct 1933 60-Month	-0.29	0.02	-0.31	14th Driest	Driest since: 1932	1966
	-0.29	0.02	-0.31	112th Wettest	Wettest since: 1931	1906
	Ties: 1924

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 1, 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 3

October 1933 Palmer Z-Index Rankings

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