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 1

December 1934 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1934 1-Month	0.47	0.04	0.43	80th Driest	Driest since: 1933	1998
December 1934 1-Month	0.47	0.04	0.43	51st Wettest	Wettest since: 1927	1973
Nov–Dec 1934 2-Month	0.36	-0.11	0.47	86th Driest	Driest since: 1933	1931
Nov–Dec 1934 2-Month	0.36	-0.11	0.47	45th Wettest	Wettest since: 1932	1972
Oct–Dec 1934 3-Month	-0.13	-0.05	-0.08	57th Driest	Driest since: 1933	1931
	-0.13	-0.05	-0.08	74th Wettest	Wettest since: 1932	1927
	Ties: 1895
Sep–Dec 1934 4-Month	0.71	-0.02	0.73	93rd Driest	Driest since: 1933	1931
Sep–Dec 1934 4-Month	0.71	-0.02	0.73	38th Wettest	Wettest since: 1927	2018
Aug–Dec 1934 5-Month	0.46	-0.02	0.48	83rd Driest	Driest since: 1932	1964
Aug–Dec 1934 5-Month	0.46	-0.02	0.48	48th Wettest	Wettest since: 1933	2011
Jul–Dec 1934 6-Month	0.63	-0.03	0.66	96th Driest	Driest since: 1932	1964
Jul–Dec 1934 6-Month	0.63	-0.03	0.66	35th Wettest	Wettest since: 1933	2018
Jun–Dec 1934 7-Month	0.40	-0.01	0.41	85th Driest	Driest since: 1932	1964
Jun–Dec 1934 7-Month	0.40	-0.01	0.41	46th Wettest	Wettest since: 1933	2011
May–Dec 1934 8-Month	0.24	-0.04	0.28	79th Driest	Driest since: 1932	1964
May–Dec 1934 8-Month	0.24	-0.04	0.28	52nd Wettest	Wettest since: 1933	2011
Apr–Dec 1934 9-Month	0.22	-0.04	0.26	74th Driest	Driest since: 1932	1964
Apr–Dec 1934 9-Month	0.22	-0.04	0.26	57th Wettest	Wettest since: 1933	2011
Mar–Dec 1934 10-Month	0.13	-0.03	0.16	68th Driest	Driest since: 1932	1964
Mar–Dec 1934 10-Month	0.13	-0.03	0.16	63rd Wettest	Wettest since: 1933	2011
Feb–Dec 1934 11-Month	-0.06	-0.02	-0.04	58th Driest	Driest since: 1931	1964
Feb–Dec 1934 11-Month	-0.06	-0.02	-0.04	73rd Wettest	Wettest since: 1933	2011
Jan–Dec 1934 12-Month	-0.09	-0.01	-0.08	54th Driest	Driest since: 1931	1964
Jan–Dec 1934 12-Month	-0.09	-0.01	-0.08	77th Wettest	Wettest since: 1933	2011
Jul 1933–Dec 1934 18-Month	0.45	-0.02	0.47	101st Driest	Driest since: 1933	1965
Jul 1933–Dec 1934 18-Month	0.45	-0.02	0.47	29th Wettest	Wettest since: 1928	2011
Jan 1933–Dec 1934 24-Month	0.24	-0.02	0.26	83rd Driest	Driest since: 1932	1964, 1965
Jan 1933–Dec 1934 24-Month	0.24	-0.02	0.26	47th Wettest	Wettest since: 1933	2019
Jan 1932–Dec 1934 36-Month	0.19	-0.02	0.21	82nd Driest	Driest since: 1933	1965
Jan 1932–Dec 1934 36-Month	0.19	-0.02	0.21	47th Wettest	Wettest since: 1929	2019
Jan 1931–Dec 1934 48-Month	-0.11	-0.01	-0.10	41st Driest	Driest since: 1933	1966
Jan 1931–Dec 1934 48-Month	-0.11	-0.01	-0.10	87th Wettest	Wettest since: 1930	2021
Jan 1930–Dec 1934 60-Month	-0.32	-0.01	-0.31	16th Driest	Driest since: 1933	1966
	-0.32	-0.01	-0.31	111th Wettest	Wettest since: 1933	1976, 2022
	Ties: 1913, 1933

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 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 1

December 1934 Palmer Z-Index Rankings

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