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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 1971 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1971 1-Month	0.24	-0.10	0.34	84th Driest	Driest since: 1970	2021
December 1971 1-Month	0.24	-0.10	0.34	47th Wettest	Wettest since: 1968	2009
Nov–Dec 1971 2-Month	-0.35	-0.07	-0.28	64th Driest	Driest since: 1970	1906
Nov–Dec 1971 2-Month	-0.35	-0.07	-0.28	67th Wettest	Wettest since: 1968	1947
Oct–Dec 1971 3-Month	-0.75	0.01	-0.76	39th Driest	Driest since: 1969	2011
Oct–Dec 1971 3-Month	-0.75	0.01	-0.76	92nd Wettest	Wettest since: 1970	2009
Sep–Dec 1971 4-Month	0.74	-0.04	0.78	99th Driest	Driest since: 1970	1924
Sep–Dec 1971 4-Month	0.74	-0.04	0.78	32nd Wettest	Wettest since: 1967	2002
Aug–Dec 1971 5-Month	0.53	-0.05	0.58	95th Driest	Driest since: 1970	1924
Aug–Dec 1971 5-Month	0.53	-0.05	0.58	36th Wettest	Wettest since: 1967	1977
Jul–Dec 1971 6-Month	0.59	-0.04	0.63	102nd Driest	Driest since: 1970	1924
Jul–Dec 1971 6-Month	0.59	-0.04	0.63	29th Wettest	Wettest since: 1967	1898
Jun–Dec 1971 7-Month	0.52	-0.04	0.56	95th Driest	Driest since: 1970	1924
Jun–Dec 1971 7-Month	0.52	-0.04	0.56	36th Wettest	Wettest since: 1967	1898
May–Dec 1971 8-Month	0.24	-0.04	0.28	78th Driest	Driest since: 1970	1924
May–Dec 1971 8-Month	0.24	-0.04	0.28	53rd Wettest	Wettest since: 1967	1942, 1975
Apr–Dec 1971 9-Month	-0.01	-0.04	0.03	56th Driest	Driest since: 1970	1924
Apr–Dec 1971 9-Month	-0.01	-0.04	0.03	75th Wettest	Wettest since: 1967	2021
Mar–Dec 1971 10-Month	-0.08	-0.05	-0.03	57th Driest	Driest since: 1969	1924
Mar–Dec 1971 10-Month	-0.08	-0.05	-0.03	74th Wettest	Wettest since: 1970	2021
Feb–Dec 1971 11-Month	-0.10	-0.07	-0.03	61st Driest	Driest since: 1970	2023
Feb–Dec 1971 11-Month	-0.10	-0.07	-0.03	70th Wettest	Wettest since: 1970	2021
Jan–Dec 1971 12-Month	-0.24	-0.05	-0.19	53rd Driest	Driest since: 1969	2023
Jan–Dec 1971 12-Month	-0.24	-0.05	-0.19	78th Wettest	Wettest since: 1970	1991
Jul 1970–Dec 1971 18-Month	-0.08	-0.04	-0.04	65th Driest	Driest since: 1970	1904
Jul 1970–Dec 1971 18-Month	-0.08	-0.04	-0.04	65th Wettest	Wettest since: 1967	1946
Jan 1970–Dec 1971 24-Month	-0.20	-0.04	-0.16	51st Driest	Driest since: 1970	2000
Jan 1970–Dec 1971 24-Month	-0.20	-0.04	-0.16	79th Wettest	Wettest since: 1967	1992
Jan 1969–Dec 1971 36-Month	-0.31	-0.04	-0.27	33rd Driest	Driest since: 1970	1904
Jan 1969–Dec 1971 36-Month	-0.31	-0.04	-0.27	96th Wettest	Wettest since: 1968	1993
Jan 1968–Dec 1971 48-Month	-0.42	-0.03	-0.39	22nd Driest	Driest since: 1965	1904
Jan 1968–Dec 1971 48-Month	-0.42	-0.03	-0.39	106th Wettest	Wettest since: 1970	1994
Jan 1967–Dec 1971 60-Month	-0.34	-0.03	-0.31	24th Driest	Driest since: 1955	1906
	-0.34	-0.03	-0.31	103rd Wettest	Wettest since: 1970	1995
	Ties: 1952

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 1971 Palmer Z-Index Rankings

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