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

December 1920 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1920 1-Month	-0.83	0.02	-0.85	41st Driest	Driest since: 1917	1930
December 1920 1-Month	-0.83	0.02	-0.85	90th Wettest	Wettest since: 1919	1978
Nov–Dec 1920 2-Month	-0.80	-0.07	-0.73	37th Driest	Driest since: 1918	1930
Nov–Dec 1920 2-Month	-0.80	-0.07	-0.73	94th Wettest	Wettest since: 1919	1978
Oct–Dec 1920 3-Month	-0.79	0.00	-0.79	40th Driest	Driest since: 1913	1953, 1963
Oct–Dec 1920 3-Month	-0.79	0.00	-0.79	91st Wettest	Wettest since: 1919	1926
Sep–Dec 1920 4-Month	-0.34	-0.03	-0.31	52nd Driest	Driest since: 1918	1953
	-0.34	-0.03	-0.31	79th Wettest	Wettest since: 1919	1979
	Ties: 1918
Aug–Dec 1920 5-Month	0.45	-0.03	0.48	83rd Driest	Driest since: 1918	1953
Aug–Dec 1920 5-Month	0.45	-0.03	0.48	48th Wettest	Wettest since: 1919	1979
Jul–Dec 1920 6-Month	0.30	-0.07	0.37	77th Driest	Driest since: 1918	1930
Jul–Dec 1920 6-Month	0.30	-0.07	0.37	54th Wettest	Wettest since: 1919	1979
Jun–Dec 1920 7-Month	0.09	-0.04	0.13	69th Driest	Driest since: 1918	1930
	0.09	-0.04	0.13	62nd Wettest	Wettest since: 1919	1979
	Ties: 1912
May–Dec 1920 8-Month	0.09	-0.04	0.13	70th Driest	Driest since: 1918	1930
May–Dec 1920 8-Month	0.09	-0.04	0.13	61st Wettest	Wettest since: 1919	1979
Apr–Dec 1920 9-Month	0.44	-0.04	0.48	87th Driest	Driest since: 1918	1930
Apr–Dec 1920 9-Month	0.44	-0.04	0.48	44th Wettest	Wettest since: 1919	1979
Mar–Dec 1920 10-Month	0.41	-0.04	0.45	87th Driest	Driest since: 1918	1930
Mar–Dec 1920 10-Month	0.41	-0.04	0.45	44th Wettest	Wettest since: 1919	1979
Feb–Dec 1920 11-Month	0.27	-0.05	0.32	79th Driest	Driest since: 1918	1930
Feb–Dec 1920 11-Month	0.27	-0.05	0.32	52nd Wettest	Wettest since: 1919	1979
Jan–Dec 1920 12-Month	0.52	-0.04	0.56	96th Driest	Driest since: 1919	1930
Jan–Dec 1920 12-Month	0.52	-0.04	0.56	35th Wettest	Wettest since: 1915	1979
Jul 1919–Dec 1920 18-Month	0.56	-0.04	0.60	100th Driest	Driest since: 1919	1931
Jul 1919–Dec 1920 18-Month	0.56	-0.04	0.60	30th Wettest	Wettest since: 1916	1979
Jan 1919–Dec 1920 24-Month	0.42	-0.04	0.46	97th Driest	Driest since: 1919	1931
Jan 1919–Dec 1920 24-Month	0.42	-0.04	0.46	33rd Wettest	Wettest since: 1916	1979
Jan 1918–Dec 1920 36-Month	0.02	-0.03	0.05	65th Driest	Driest since: 1919	1954
Jan 1918–Dec 1920 36-Month	0.02	-0.03	0.05	64th Wettest	Wettest since: 1917	2020
Jan 1917–Dec 1920 48-Month	0.12	-0.03	0.15	75th Driest	Driest since: 1919	1955
Jan 1917–Dec 1920 48-Month	0.12	-0.03	0.15	53rd Wettest	Wettest since: 1918	2021
Jan 1916–Dec 1920 60-Month	0.15	-0.03	0.18	82nd Driest	Driest since: 1918	1934
Jan 1916–Dec 1920 60-Month	0.15	-0.03	0.18	45th Wettest	Wettest since: 1919	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 24, 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

December 1920 Palmer Z-Index Rankings

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