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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.

Louisiana, Climate Division 9

December 1965 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1965 1-Month	1.57	-0.10	1.67	109th Driest	Driest since: 1964	2021
December 1965 1-Month	1.57	-0.10	1.67	22nd Wettest	Wettest since: 1953	2009
Nov–Dec 1965 2-Month	-0.01	-0.07	0.06	81st Driest	Driest since: 1964	1906
Nov–Dec 1965 2-Month	-0.01	-0.07	0.06	50th Wettest	Wettest since: 1963	1947
Oct–Dec 1965 3-Month	-0.40	0.01	-0.41	51st Driest	Driest since: 1962	2011
Oct–Dec 1965 3-Month	-0.40	0.01	-0.41	80th Wettest	Wettest since: 1964	2009
Sep–Dec 1965 4-Month	0.15	-0.04	0.19	79th Driest	Driest since: 1964	1924
Sep–Dec 1965 4-Month	0.15	-0.04	0.19	52nd Wettest	Wettest since: 1963	2002
Aug–Dec 1965 5-Month	0.17	-0.05	0.22	82nd Driest	Driest since: 1964	1924
Aug–Dec 1965 5-Month	0.17	-0.05	0.22	49th Wettest	Wettest since: 1961	1977
Jul–Dec 1965 6-Month	-0.03	-0.04	0.01	61st Driest	Driest since: 1963	1924
Jul–Dec 1965 6-Month	-0.03	-0.04	0.01	70th Wettest	Wettest since: 1964	1898
Jun–Dec 1965 7-Month	-0.13	-0.04	-0.09	52nd Driest	Driest since: 1962	1924
Jun–Dec 1965 7-Month	-0.13	-0.04	-0.09	79th Wettest	Wettest since: 1964	1898
May–Dec 1965 8-Month	-0.28	-0.04	-0.24	46th Driest	Driest since: 1963	1924
May–Dec 1965 8-Month	-0.28	-0.04	-0.24	85th Wettest	Wettest since: 1964	1942, 1975
Apr–Dec 1965 9-Month	-0.52	-0.04	-0.48	35th Driest	Driest since: 1963	1924
Apr–Dec 1965 9-Month	-0.52	-0.04	-0.48	96th Wettest	Wettest since: 1964	2021
Mar–Dec 1965 10-Month	-0.55	-0.05	-0.50	32nd Driest	Driest since: 1963	1924
Mar–Dec 1965 10-Month	-0.55	-0.05	-0.50	99th Wettest	Wettest since: 1964	2021
Feb–Dec 1965 11-Month	-0.42	-0.07	-0.35	37th Driest	Driest since: 1963	2023
Feb–Dec 1965 11-Month	-0.42	-0.07	-0.35	94th Wettest	Wettest since: 1964	2021
Jan–Dec 1965 12-Month	-0.31	-0.05	-0.26	45th Driest	Driest since: 1963	2023
Jan–Dec 1965 12-Month	-0.31	-0.05	-0.26	86th Wettest	Wettest since: 1964	1991
Jul 1964–Dec 1965 18-Month	-0.12	-0.04	-0.08	57th Driest	Driest since: 1963	1904
Jul 1964–Dec 1965 18-Month	-0.12	-0.04	-0.08	73rd Wettest	Wettest since: 1964	1946
Jan 1964–Dec 1965 24-Month	0.06	-0.04	0.10	78th Driest	Driest since: 1964	2000
Jan 1964–Dec 1965 24-Month	0.06	-0.04	0.10	52nd Wettest	Wettest since: 1961	1992
Jan 1963–Dec 1965 36-Month	-0.20	-0.04	-0.16	52nd Driest	Driest since: 1964	1904
	-0.20	-0.04	-0.16	77th Wettest	Wettest since: 1961	1993
	Ties: 1955
Jan 1962–Dec 1965 48-Month	-0.56	-0.03	-0.53	7th Driest	Driest since: 1952	1904
Jan 1962–Dec 1965 48-Month	-0.56	-0.03	-0.53	121st Wettest	Wettest since: 1964	1994
Jan 1961–Dec 1965 60-Month	-0.22	-0.03	-0.19	42nd Driest	Driest since: 1964	1906
Jan 1961–Dec 1965 60-Month	-0.22	-0.03	-0.19	85th Wettest	Wettest since: 1963	1995

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 22, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Louisiana, Climate Division 9

December 1965 Palmer Z-Index Rankings

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