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 5

November 2017 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 2017 1-Month	-1.47	-0.27	-1.20	40th Driest	Driest since: 2016	1930
	-1.47	-0.27	-1.20	91st Wettest	Wettest since: 2014	2018
	Ties: 1960
Oct–Nov 2017 2-Month	0.57	-0.12	0.69	83rd Driest	Driest since: 2016	1930
Oct–Nov 2017 2-Month	0.57	-0.12	0.69	48th Wettest	Wettest since: 2011	1995
Sep–Nov 2017 3-Month	-0.17	-0.03	-0.14	53rd Driest	Driest since: 2016	1930
Sep–Nov 2017 3-Month	-0.17	-0.03	-0.14	78th Wettest	Wettest since: 2012	2011
Aug–Nov 2017 4-Month	0.24	0.01	0.23	75th Driest	Driest since: 2016	1930
Aug–Nov 2017 4-Month	0.24	0.01	0.23	56th Wettest	Wettest since: 2012	2011
Jul–Nov 2017 5-Month	1.06	0.01	1.05	99th Driest	Driest since: 2016	1930
Jul–Nov 2017 5-Month	1.06	0.01	1.05	32nd Wettest	Wettest since: 2011	2018
Jun–Nov 2017 6-Month	0.79	0.04	0.75	96th Driest	Driest since: 2016	1930
Jun–Nov 2017 6-Month	0.79	0.04	0.75	35th Wettest	Wettest since: 2011	2018
May–Nov 2017 7-Month	0.94	0.00	0.94	108th Driest	Driest since: 2016	1930
May–Nov 2017 7-Month	0.94	0.00	0.94	23rd Wettest	Wettest since: 2011	2018
Apr–Nov 2017 8-Month	0.78	0.03	0.75	108th Driest	Driest since: 2016	1930
Apr–Nov 2017 8-Month	0.78	0.03	0.75	23rd Wettest	Wettest since: 2011	2018
Mar–Nov 2017 9-Month	0.79	0.03	0.76	112th Driest	Driest since: 2016	1930
Mar–Nov 2017 9-Month	0.79	0.03	0.76	19th Wettest	Wettest since: 2011	2011
Feb–Nov 2017 10-Month	0.57	0.03	0.54	102nd Driest	Driest since: 2016	1930
Feb–Nov 2017 10-Month	0.57	0.03	0.54	29th Wettest	Wettest since: 2011	2011
Jan–Nov 2017 11-Month	0.57	0.06	0.51	102nd Driest	Driest since: 2016	1930
Jan–Nov 2017 11-Month	0.57	0.06	0.51	29th Wettest	Wettest since: 2011	2011
Dec 2016–Nov 2017 12-Month	0.40	0.06	0.34	90th Driest	Driest since: 2016	1930
Dec 2016–Nov 2017 12-Month	0.40	0.06	0.34	40th Wettest	Wettest since: 2011	2011
Jun 2016–Nov 2017 18-Month	-0.30	0.05	-0.35	33rd Driest	Driest since: 2016	1931
Jun 2016–Nov 2017 18-Month	-0.30	0.05	-0.35	97th Wettest	Wettest since: 2015	2019
Dec 2015–Nov 2017 24-Month	-0.33	0.05	-0.38	26th Driest	Driest since: 2016	1931
Dec 2015–Nov 2017 24-Month	-0.33	0.05	-0.38	103rd Wettest	Wettest since: 2015	2019
Dec 2014–Nov 2017 36-Month	-0.32	0.05	-0.37	16th Driest	Driest since: 2016	1932
	-0.32	0.05	-0.37	112th Wettest	Wettest since: 2015	2019
	Ties: 1969
Dec 2013–Nov 2017 48-Month	-0.20	0.05	-0.25	24th Driest	Driest since: 2016	1966
	-0.20	0.05	-0.25	103rd Wettest	Wettest since: 2015	2006
	Ties: 1924
Dec 2012–Nov 2017 60-Month	-0.22	0.05	-0.27	21st Driest	Driest since: 2016	1966
	-0.22	0.05	-0.27	105th Wettest	Wettest since: 2015	1976
	Ties: 1925, 1989

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 5

November 2017 Palmer Z-Index Rankings

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