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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 7

December 1964 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1964 1-Month	0.26	-0.09	0.35	90th Driest	Driest since: 1963	1917
	0.26	-0.09	0.35	41st Wettest	Wettest since: 1961	1982
	Ties: 1914
Nov–Dec 1964 2-Month	-0.48	-0.09	-0.39	58th Driest	Driest since: 1962	1917
Nov–Dec 1964 2-Month	-0.48	-0.09	-0.39	73rd Wettest	Wettest since: 1963	1940
Oct–Dec 1964 3-Month	-0.57	-0.06	-0.51	45th Driest	Driest since: 1963	1917
Oct–Dec 1964 3-Month	-0.57	-0.06	-0.51	86th Wettest	Wettest since: 1961	2002
Sep–Dec 1964 4-Month	-0.21	-0.09	-0.12	62nd Driest	Driest since: 1962	1924
Sep–Dec 1964 4-Month	-0.21	-0.09	-0.12	69th Wettest	Wettest since: 1963	2002
Aug–Dec 1964 5-Month	-0.16	-0.09	-0.07	63rd Driest	Driest since: 1963	1924
Aug–Dec 1964 5-Month	-0.16	-0.09	-0.07	68th Wettest	Wettest since: 1961	1940
Jul–Dec 1964 6-Month	0.03	-0.08	0.11	64th Driest	Driest since: 1963	1924
Jul–Dec 1964 6-Month	0.03	-0.08	0.11	67th Wettest	Wettest since: 1961	1940
Jun–Dec 1964 7-Month	-0.22	-0.08	-0.14	53rd Driest	Driest since: 1963	1924
Jun–Dec 1964 7-Month	-0.22	-0.08	-0.14	78th Wettest	Wettest since: 1961	1940
May–Dec 1964 8-Month	-0.34	-0.06	-0.28	51st Driest	Driest since: 1963	1924
May–Dec 1964 8-Month	-0.34	-0.06	-0.28	80th Wettest	Wettest since: 1961	1940
Apr–Dec 1964 9-Month	-0.44	-0.05	-0.39	44th Driest	Driest since: 1963	1924
Apr–Dec 1964 9-Month	-0.44	-0.05	-0.39	87th Wettest	Wettest since: 1961	1940
Mar–Dec 1964 10-Month	-0.29	-0.05	-0.24	48th Driest	Driest since: 1963	1924
Mar–Dec 1964 10-Month	-0.29	-0.05	-0.24	83rd Wettest	Wettest since: 1961	1940
Feb–Dec 1964 11-Month	-0.30	-0.06	-0.24	46th Driest	Driest since: 1963	1924
Feb–Dec 1964 11-Month	-0.30	-0.06	-0.24	85th Wettest	Wettest since: 1961	1940
Jan–Dec 1964 12-Month	-0.20	-0.06	-0.14	52nd Driest	Driest since: 1963	1954
	-0.20	-0.06	-0.14	79th Wettest	Wettest since: 1961	1940
	Ties: 1895
Jul 1963–Dec 1964 18-Month	-0.29	-0.07	-0.22	41st Driest	Driest since: 1963	1925
	-0.29	-0.07	-0.22	89th Wettest	Wettest since: 1961	1941
	Ties: 1903, 1933, 1953
Jan 1963–Dec 1964 24-Month	-0.62	-0.05	-0.57	17th Driest	Driest since: 1963	2011
	-0.62	-0.05	-0.57	113th Wettest	Wettest since: 1962	1941
	Ties: 1903
Jan 1962–Dec 1964 36-Month	-0.78	-0.05	-0.73	7th Driest	Driest since: 1918	1918
Jan 1962–Dec 1964 36-Month	-0.78	-0.05	-0.73	122nd Wettest	Wettest since: 1963	1942
Jan 1961–Dec 1964 48-Month	-0.40	-0.04	-0.36	25th Driest	Driest since: 1963	1904
Jan 1961–Dec 1964 48-Month	-0.40	-0.04	-0.36	103rd Wettest	Wettest since: 1962	1943
Jan 1960–Dec 1964 60-Month	-0.39	-0.04	-0.35	21st Driest	Driest since: 1956	1910
Jan 1960–Dec 1964 60-Month	-0.39	-0.04	-0.35	106th Wettest	Wettest since: 1963	1944

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

Louisiana, Climate Division 7

December 1964 Palmer Z-Index Rankings

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