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

January 1946 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1946 1-Month	-1.67	0.21	-1.88	17th Driest	Driest since: 1940	1970
	-1.67	0.21	-1.88	115th Wettest	Wettest since: 1945	1979
	Ties: 1931
Dec 1945–Jan 1946 2-Month	-0.65	0.14	-0.79	40th Driest	Driest since: 1944	1981
Dec 1945–Jan 1946 2-Month	-0.65	0.14	-0.79	91st Wettest	Wettest since: 1945	1978
Nov 1945–Jan 1946 3-Month	0.16	0.00	0.16	76th Driest	Driest since: 1945	1981
Nov 1945–Jan 1946 3-Month	0.16	0.00	0.16	55th Wettest	Wettest since: 1943	1978
Oct 1945–Jan 1946 4-Month	0.01	0.03	-0.02	60th Driest	Driest since: 1945	2025
Oct 1945–Jan 1946 4-Month	0.01	0.03	-0.02	71st Wettest	Wettest since: 1944	1978
Sep 1945–Jan 1946 5-Month	0.39	0.03	0.36	84th Driest	Driest since: 1945	2025
	0.39	0.03	0.36	47th Wettest	Wettest since: 1943	1978
	Ties: 1904, 1914
Aug 1945–Jan 1946 6-Month	0.44	0.04	0.40	83rd Driest	Driest since: 1945	1931
	0.44	0.04	0.40	48th Wettest	Wettest since: 1943	2019
	Ties: 1898
Jul 1945–Jan 1946 7-Month	1.13	0.02	1.11	117th Driest	Driest since: 1945	1931
Jul 1945–Jan 1946 7-Month	1.13	0.02	1.11	14th Wettest	Wettest since: 1943	2019
Jun 1945–Jan 1946 8-Month	1.08	0.03	1.05	112th Driest	Driest since: 1945	1931
Jun 1945–Jan 1946 8-Month	1.08	0.03	1.05	19th Wettest	Wettest since: 1943	2019
May 1945–Jan 1946 9-Month	1.11	-0.01	1.12	116th Driest	Driest since: 1945	1981
May 1945–Jan 1946 9-Month	1.11	-0.01	1.12	15th Wettest	Wettest since: 1943	2019
Apr 1945–Jan 1946 10-Month	1.02	0.00	1.02	118th Driest	Driest since: 1945	1931
Apr 1945–Jan 1946 10-Month	1.02	0.00	1.02	13th Wettest	Wettest since: 1943	2019
Mar 1945–Jan 1946 11-Month	0.72	0.01	0.71	109th Driest	Driest since: 1945	1931
	0.72	0.01	0.71	22nd Wettest	Wettest since: 1943	2019
	Ties: 1905
Feb 1945–Jan 1946 12-Month	0.61	0.02	0.59	106th Driest	Driest since: 1945	1931
	0.61	0.02	0.59	25th Wettest	Wettest since: 1943	2019
	Ties: 1905
Aug 1944–Jan 1946 18-Month	0.17	0.03	0.14	75th Driest	Driest since: 1945	1966
Aug 1944–Jan 1946 18-Month	0.17	0.03	0.14	55th Wettest	Wettest since: 1944	2019
Feb 1944–Jan 1946 24-Month	0.03	0.03	0.00	61st Driest	Driest since: 1945	1966
Feb 1944–Jan 1946 24-Month	0.03	0.03	0.00	69th Wettest	Wettest since: 1944	2020
Feb 1943–Jan 1946 36-Month	-0.11	0.03	-0.14	41st Driest	Driest since: 1944	1967
Feb 1943–Jan 1946 36-Month	-0.11	0.03	-0.14	88th Wettest	Wettest since: 1945	2021
Feb 1942–Jan 1946 48-Month	0.16	0.03	0.13	75th Driest	Driest since: 1945	1967
Feb 1942–Jan 1946 48-Month	0.16	0.03	0.13	53rd Wettest	Wettest since: 1939	1976, 2022
Feb 1941–Jan 1946 60-Month	-0.15	0.03	-0.18	24th Driest	Driest since: 1944	1967
Feb 1941–Jan 1946 60-Month	-0.15	0.03	-0.18	103rd Wettest	Wettest since: 1945	1976

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 2

January 1946 Palmer Z-Index Rankings

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