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 2

October 1939 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1939 1-Month	-1.22	0.14	-1.36	27th Driest	Driest since: 1938	1963
October 1939 1-Month	-1.22	0.14	-1.36	104th Wettest	Wettest since: 1937	2009
Sep–Oct 1939 2-Month	-2.13	0.01	-2.14	8th Driest	Driest since: 1908	1897
Sep–Oct 1939 2-Month	-2.13	0.01	-2.14	123rd Wettest	Wettest since: 1938	1979
Aug–Oct 1939 3-Month	-1.68	0.00	-1.68	14th Driest	Driest since: 1936	1953
Aug–Oct 1939 3-Month	-1.68	0.00	-1.68	117th Wettest	Wettest since: 1938	1979
Jul–Oct 1939 4-Month	-1.30	-0.06	-1.24	17th Driest	Driest since: 1936	1930
Jul–Oct 1939 4-Month	-1.30	-0.06	-1.24	114th Wettest	Wettest since: 1938	1979
Jun–Oct 1939 5-Month	-0.71	-0.03	-0.68	28th Driest	Driest since: 1936	1930
Jun–Oct 1939 5-Month	-0.71	-0.03	-0.68	103rd Wettest	Wettest since: 1938	1979
May–Oct 1939 6-Month	-1.04	-0.03	-1.01	18th Driest	Driest since: 1936	1930
May–Oct 1939 6-Month	-1.04	-0.03	-1.01	113th Wettest	Wettest since: 1938	1979
Apr–Oct 1939 7-Month	-0.54	-0.03	-0.51	34th Driest	Driest since: 1936	1930
Apr–Oct 1939 7-Month	-0.54	-0.03	-0.51	97th Wettest	Wettest since: 1938	1979
Mar–Oct 1939 8-Month	-0.38	-0.03	-0.35	44th Driest	Driest since: 1936	1930
Mar–Oct 1939 8-Month	-0.38	-0.03	-0.35	87th Wettest	Wettest since: 1938	1979
Feb–Oct 1939 9-Month	0.12	-0.04	0.16	75th Driest	Driest since: 1937	1930
Feb–Oct 1939 9-Month	0.12	-0.04	0.16	56th Wettest	Wettest since: 1938	1979
Jan–Oct 1939 10-Month	0.26	-0.03	0.29	78th Driest	Driest since: 1938	1930
Jan–Oct 1939 10-Month	0.26	-0.03	0.29	53rd Wettest	Wettest since: 1937	1979
Dec 1938–Oct 1939 11-Month	0.09	-0.02	0.11	68th Driest	Driest since: 1938	1930
Dec 1938–Oct 1939 11-Month	0.09	-0.02	0.11	62nd Wettest	Wettest since: 1937	1979
Nov 1938–Oct 1939 12-Month	0.13	-0.03	0.16	71st Driest	Driest since: 1938	1930
Nov 1938–Oct 1939 12-Month	0.13	-0.03	0.16	59th Wettest	Wettest since: 1937	1979
May 1938–Oct 1939 18-Month	0.36	-0.03	0.39	88th Driest	Driest since: 1938	1931
	0.36	-0.03	0.39	42nd Wettest	Wettest since: 1929	1979
	Ties: 1910
Nov 1937–Oct 1939 24-Month	0.05	-0.03	0.08	64th Driest	Driest since: 1937	1931
Nov 1937–Oct 1939 24-Month	0.05	-0.03	0.08	65th Wettest	Wettest since: 1938	1979
Nov 1936–Oct 1939 36-Month	0.14	-0.03	0.17	76th Driest	Driest since: 1938	1931
Nov 1936–Oct 1939 36-Month	0.14	-0.03	0.17	52nd Wettest	Wettest since: 1929	2021
Nov 1935–Oct 1939 48-Month	-0.24	-0.03	-0.21	31st Driest	Driest since: 1937	1932
Nov 1935–Oct 1939 48-Month	-0.24	-0.03	-0.21	96th Wettest	Wettest since: 1938	2021
Nov 1934–Oct 1939 60-Month	-0.04	-0.03	-0.01	51st Driest	Driest since: 1938	1944
Nov 1934–Oct 1939 60-Month	-0.04	-0.03	-0.01	75th Wettest	Wettest since: 1930	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 2

October 1939 Palmer Z-Index Rankings

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