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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 1974 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1974 1-Month	1.03	-0.09	1.12	103rd Driest	Driest since: 1973	1917
December 1974 1-Month	1.03	-0.09	1.12	28th Wettest	Wettest since: 1971	1982
Nov–Dec 1974 2-Month	1.24	-0.09	1.33	110th Driest	Driest since: 1973	1917
Nov–Dec 1974 2-Month	1.24	-0.09	1.33	21st Wettest	Wettest since: 1972	1940
Oct–Dec 1974 3-Month	0.82	-0.06	0.88	104th Driest	Driest since: 1973	1917
Oct–Dec 1974 3-Month	0.82	-0.06	0.88	27th Wettest	Wettest since: 1972	2002
Sep–Dec 1974 4-Month	0.62	-0.09	0.71	99th Driest	Driest since: 1969	1924
Sep–Dec 1974 4-Month	0.62	-0.09	0.71	32nd Wettest	Wettest since: 1973	2002
Aug–Dec 1974 5-Month	0.74	-0.09	0.83	104th Driest	Driest since: 1972	1924
Aug–Dec 1974 5-Month	0.74	-0.09	0.83	27th Wettest	Wettest since: 1973	1940
Jul–Dec 1974 6-Month	0.48	-0.08	0.56	95th Driest	Driest since: 1970	1924
Jul–Dec 1974 6-Month	0.48	-0.08	0.56	36th Wettest	Wettest since: 1973	1940
Jun–Dec 1974 7-Month	0.45	-0.08	0.53	91st Driest	Driest since: 1972	1924
Jun–Dec 1974 7-Month	0.45	-0.08	0.53	40th Wettest	Wettest since: 1973	1940
May–Dec 1974 8-Month	0.47	-0.06	0.53	94th Driest	Driest since: 1972	1924
	0.47	-0.06	0.53	37th Wettest	Wettest since: 1973	1940
	Ties: 1908
Apr–Dec 1974 9-Month	0.40	-0.05	0.45	91st Driest	Driest since: 1972	1924
Apr–Dec 1974 9-Month	0.40	-0.05	0.45	40th Wettest	Wettest since: 1973	1940
Mar–Dec 1974 10-Month	0.27	-0.05	0.32	85th Driest	Driest since: 1972	1924
Mar–Dec 1974 10-Month	0.27	-0.05	0.32	46th Wettest	Wettest since: 1973	1940
Feb–Dec 1974 11-Month	0.16	-0.06	0.22	77th Driest	Driest since: 1972	1924
Feb–Dec 1974 11-Month	0.16	-0.06	0.22	54th Wettest	Wettest since: 1973	1940
Jan–Dec 1974 12-Month	0.58	-0.06	0.64	105th Driest	Driest since: 1972	1954
Jan–Dec 1974 12-Month	0.58	-0.06	0.64	26th Wettest	Wettest since: 1973	1940
Jul 1973–Dec 1974 18-Month	0.85	-0.07	0.92	122nd Driest	Driest since: 1972	1925
	0.85	-0.07	0.92	8th Wettest	Wettest since: 1973	1941
	Ties: 1940
Jan 1973–Dec 1974 24-Month	0.98	-0.05	1.03	126th Driest	Driest since: 1973	2011
Jan 1973–Dec 1974 24-Month	0.98	-0.05	1.03	4th Wettest	Wettest since: 1941	1941
Jan 1972–Dec 1974 36-Month	0.72	-0.05	0.77	124th Driest	Driest since: 1973	1918
Jan 1972–Dec 1974 36-Month	0.72	-0.05	0.77	5th Wettest	Wettest since: 1942	1942
Jan 1971–Dec 1974 48-Month	0.47	-0.04	0.51	113th Driest	Driest since: 1973	1904
Jan 1971–Dec 1974 48-Month	0.47	-0.04	0.51	15th Wettest	Wettest since: 1946	1943
Jan 1970–Dec 1974 60-Month	0.36	-0.04	0.40	104th Driest	Driest since: 1973	1910
Jan 1970–Dec 1974 60-Month	0.36	-0.04	0.40	23rd Wettest	Wettest since: 1947	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 1974 Palmer Z-Index Rankings

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