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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 1984 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1984 1-Month	-1.83	0.21	-2.04	11th Driest	Driest since: 1981	1970
	-1.83	0.21	-2.04	121st Wettest	Wettest since: 1983	1979
	Ties: 1967
Dec 1983–Jan 1984 2-Month	1.51	0.14	1.37	109th Driest	Driest since: 1983	1981
Dec 1983–Jan 1984 2-Month	1.51	0.14	1.37	22nd Wettest	Wettest since: 1979	1978
Nov 1983–Jan 1984 3-Month	1.77	0.00	1.77	118th Driest	Driest since: 1983	1981
Nov 1983–Jan 1984 3-Month	1.77	0.00	1.77	13th Wettest	Wettest since: 1979	1978
Oct 1983–Jan 1984 4-Month	1.53	0.03	1.50	120th Driest	Driest since: 1983	2025
Oct 1983–Jan 1984 4-Month	1.53	0.03	1.50	11th Wettest	Wettest since: 1979	1978
Sep 1983–Jan 1984 5-Month	0.76	0.03	0.73	103rd Driest	Driest since: 1983	2025
Sep 1983–Jan 1984 5-Month	0.76	0.03	0.73	28th Wettest	Wettest since: 1979	1978
Aug 1983–Jan 1984 6-Month	0.27	0.04	0.23	73rd Driest	Driest since: 1983	1931
Aug 1983–Jan 1984 6-Month	0.27	0.04	0.23	58th Wettest	Wettest since: 1980	2019
Jul 1983–Jan 1984 7-Month	-0.15	0.02	-0.17	53rd Driest	Driest since: 1983	1931
Jul 1983–Jan 1984 7-Month	-0.15	0.02	-0.17	78th Wettest	Wettest since: 1980	2019
Jun 1983–Jan 1984 8-Month	0.00	0.03	-0.03	58th Driest	Driest since: 1983	1931
Jun 1983–Jan 1984 8-Month	0.00	0.03	-0.03	73rd Wettest	Wettest since: 1979	2019
May 1983–Jan 1984 9-Month	0.08	-0.01	0.09	65th Driest	Driest since: 1983	1981
May 1983–Jan 1984 9-Month	0.08	-0.01	0.09	66th Wettest	Wettest since: 1980	2019
Apr 1983–Jan 1984 10-Month	0.78	0.00	0.78	111th Driest	Driest since: 1983	1931
Apr 1983–Jan 1984 10-Month	0.78	0.00	0.78	20th Wettest	Wettest since: 1978	2019
Mar 1983–Jan 1984 11-Month	0.82	0.01	0.81	115th Driest	Driest since: 1983	1931
Mar 1983–Jan 1984 11-Month	0.82	0.01	0.81	16th Wettest	Wettest since: 1978	2019
Feb 1983–Jan 1984 12-Month	0.81	0.02	0.79	115th Driest	Driest since: 1983	1931
Feb 1983–Jan 1984 12-Month	0.81	0.02	0.79	16th Wettest	Wettest since: 1978	2019
Aug 1982–Jan 1984 18-Month	0.29	0.03	0.26	89th Driest	Driest since: 1983	1966
Aug 1982–Jan 1984 18-Month	0.29	0.03	0.26	41st Wettest	Wettest since: 1980	2019
Feb 1982–Jan 1984 24-Month	0.34	0.03	0.31	93rd Driest	Driest since: 1983	1966
	0.34	0.03	0.31	37th Wettest	Wettest since: 1979	2020
	Ties: 1899
Feb 1981–Jan 1984 36-Month	0.23	0.03	0.20	85th Driest	Driest since: 1983	1967
Feb 1981–Jan 1984 36-Month	0.23	0.03	0.20	44th Wettest	Wettest since: 1980	2021
Feb 1980–Jan 1984 48-Month	-0.18	0.03	-0.21	28th Driest	Driest since: 1983	1967
	-0.18	0.03	-0.21	100th Wettest	Wettest since: 1981	1976, 2022
	Ties: 1958
Feb 1979–Jan 1984 60-Month	-0.12	0.03	-0.15	31st Driest	Driest since: 1983	1967
Feb 1979–Jan 1984 60-Month	-0.12	0.03	-0.15	96th Wettest	Wettest since: 1982	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 1984 Palmer Z-Index Rankings

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