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.

Kentucky, Climate Division 4

October 2011 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 2011 1-Month	2.41	0.09	2.32	111th Driest	Driest since: 2010	1963
October 2011 1-Month	2.41	0.09	2.32	20th Wettest	Wettest since: 2009	1925
Sep–Oct 2011 2-Month	2.70	0.00	2.70	123rd Driest	Driest since: 2010	1897
Sep–Oct 2011 2-Month	2.70	0.00	2.70	8th Wettest	Wettest since: 2006	2006
Aug–Oct 2011 3-Month	1.38	0.02	1.36	104th Driest	Driest since: 2010	1953
	1.38	0.02	1.36	27th Wettest	Wettest since: 2009	1989
	Ties: 1907
Jul–Oct 2011 4-Month	1.00	-0.03	1.03	101st Driest	Driest since: 2010	1930
	1.00	-0.03	1.03	30th Wettest	Wettest since: 2009	1979
	Ties: 1975, 1992
Jun–Oct 2011 5-Month	0.91	0.03	0.88	98th Driest	Driest since: 2010	1930
Jun–Oct 2011 5-Month	0.91	0.03	0.88	33rd Wettest	Wettest since: 2009	1989
May–Oct 2011 6-Month	1.03	0.02	1.01	105th Driest	Driest since: 2010	1930
May–Oct 2011 6-Month	1.03	0.02	1.01	26th Wettest	Wettest since: 2009	1989
Apr–Oct 2011 7-Month	1.75	0.03	1.72	125th Driest	Driest since: 2010	1930
Apr–Oct 2011 7-Month	1.75	0.03	1.72	6th Wettest	Wettest since: 2009	1989
Mar–Oct 2011 8-Month	1.70	0.03	1.67	126th Driest	Driest since: 2010	1930
Mar–Oct 2011 8-Month	1.70	0.03	1.67	5th Wettest	Wettest since: 2004	1989
Feb–Oct 2011 9-Month	1.47	0.02	1.45	124th Driest	Driest since: 2010	1930
Feb–Oct 2011 9-Month	1.47	0.02	1.45	7th Wettest	Wettest since: 2004	1989
Jan–Oct 2011 10-Month	1.19	0.03	1.16	119th Driest	Driest since: 2010	1930
Jan–Oct 2011 10-Month	1.19	0.03	1.16	12th Wettest	Wettest since: 2009	1989
Dec 2010–Oct 2011 11-Month	1.19	0.04	1.15	120th Driest	Driest since: 2010	1930
Dec 2010–Oct 2011 11-Month	1.19	0.04	1.15	10th Wettest	Wettest since: 2009	1979
Nov 2010–Oct 2011 12-Month	1.10	0.03	1.07	118th Driest	Driest since: 2010	1930
Nov 2010–Oct 2011 12-Month	1.10	0.03	1.07	12th Wettest	Wettest since: 2004	2020
May 2010–Oct 2011 18-Month	0.87	0.02	0.85	113th Driest	Driest since: 2010	1931
May 2010–Oct 2011 18-Month	0.87	0.02	0.85	17th Wettest	Wettest since: 2004	2004
Nov 2009–Oct 2011 24-Month	0.45	0.03	0.42	97th Driest	Driest since: 2010	1931
	0.45	0.03	0.42	32nd Wettest	Wettest since: 2004	2020
	Ties: 1989
Nov 2008–Oct 2011 36-Month	0.66	0.03	0.63	114th Driest	Driest since: 2010	1932
Nov 2008–Oct 2011 36-Month	0.66	0.03	0.63	14th Wettest	Wettest since: 2005	2020
Nov 2007–Oct 2011 48-Month	0.31	0.03	0.28	90th Driest	Driest since: 2010	1933, 2008
	0.31	0.03	0.28	37th Wettest	Wettest since: 2006	2021
	Ties: 1909
Nov 2006–Oct 2011 60-Month	-0.08	0.03	-0.11	45th Driest	Driest since: 2010	1934
Nov 2006–Oct 2011 60-Month	-0.08	0.03	-0.11	81st Wettest	Wettest since: 2007	2021

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

Kentucky, Climate Division 4

October 2011 Palmer Z-Index Rankings

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