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 4

January 1928 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1928 1-Month	-0.88	0.23	-1.11	38th Driest	Driest since: 1927	1981
January 1928 1-Month	-0.88	0.23	-1.11	94th Wettest	Wettest since: 1926	1979
Dec 1927–Jan 1928 2-Month	-0.01	0.12	-0.13	64th Driest	Driest since: 1927	2002
Dec 1927–Jan 1928 2-Month	-0.01	0.12	-0.13	67th Wettest	Wettest since: 1925	1978
Nov 1927–Jan 1928 3-Month	0.17	0.01	0.16	69th Driest	Driest since: 1926	2002
Nov 1927–Jan 1928 3-Month	0.17	0.01	0.16	62nd Wettest	Wettest since: 1927	2019
Oct 1927–Jan 1928 4-Month	1.42	0.00	1.42	119th Driest	Driest since: 1927	2002
Oct 1927–Jan 1928 4-Month	1.42	0.00	1.42	12th Wettest	Wettest since: 1903	2019
Sep 1927–Jan 1928 5-Month	0.91	0.03	0.88	108th Driest	Driest since: 1927	1931
Sep 1927–Jan 1928 5-Month	0.91	0.03	0.88	23rd Wettest	Wettest since: 1918	2019
Aug 1927–Jan 1928 6-Month	0.97	0.06	0.91	105th Driest	Driest since: 1927	1931
Aug 1927–Jan 1928 6-Month	0.97	0.06	0.91	26th Wettest	Wettest since: 1918	2019
Jul 1927–Jan 1928 7-Month	1.13	0.08	1.05	115th Driest	Driest since: 1927	1931
Jul 1927–Jan 1928 7-Month	1.13	0.08	1.05	16th Wettest	Wettest since: 1918	2019
Jun 1927–Jan 1928 8-Month	1.08	0.09	0.99	115th Driest	Driest since: 1927	1931
	1.08	0.09	0.99	16th Wettest	Wettest since: 1918	2019
	Ties: 1904
May 1927–Jan 1928 9-Month	0.93	0.05	0.88	114th Driest	Driest since: 1927	1931
	0.93	0.05	0.88	17th Wettest	Wettest since: 1918	2019
	Ties: 1916
Apr 1927–Jan 1928 10-Month	1.00	0.04	0.96	115th Driest	Driest since: 1927	1931
Apr 1927–Jan 1928 10-Month	1.00	0.04	0.96	16th Wettest	Wettest since: 1908	2019
Mar 1927–Jan 1928 11-Month	0.72	0.04	0.68	108th Driest	Driest since: 1927	1931
Mar 1927–Jan 1928 11-Month	0.72	0.04	0.68	23rd Wettest	Wettest since: 1925	2019
Feb 1927–Jan 1928 12-Month	0.76	0.05	0.71	111th Driest	Driest since: 1927	1931
Feb 1927–Jan 1928 12-Month	0.76	0.05	0.71	20th Wettest	Wettest since: 1925	2019
Aug 1926–Jan 1928 18-Month	0.78	0.05	0.73	114th Driest	Driest since: 1927	1932
Aug 1926–Jan 1928 18-Month	0.78	0.05	0.73	16th Wettest	Wettest since: 1913	2019
Feb 1926–Jan 1928 24-Month	0.39	0.05	0.34	93rd Driest	Driest since: 1927	1932
	0.39	0.05	0.34	37th Wettest	Wettest since: 1925	2020
	Ties: 1906
Feb 1925–Jan 1928 36-Month	0.10	0.05	0.05	65th Driest	Driest since: 1925	1967
Feb 1925–Jan 1928 36-Month	0.10	0.05	0.05	64th Wettest	Wettest since: 1927	2020
Feb 1924–Jan 1928 48-Month	0.28	0.06	0.22	89th Driest	Driest since: 1927	1967
	0.28	0.06	0.22	39th Wettest	Wettest since: 1920	1997
	Ties: 1916
Feb 1923–Jan 1928 60-Month	0.23	0.05	0.18	84th Driest	Driest since: 1927	1967
	0.23	0.05	0.18	43rd Wettest	Wettest since: 1921	1997
	Ties: 1904

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 4

January 1928 Palmer Z-Index Rankings

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