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.

Louisiana, Climate Division 9

December 1951 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1951 1-Month	-1.95	-0.10	-1.85	18th Driest	Driest since: 1933	2021
December 1951 1-Month	-1.95	-0.10	-1.85	113th Wettest	Wettest since: 1950	2009
Nov–Dec 1951 2-Month	-1.31	-0.07	-1.24	31st Driest	Driest since: 1933	1906
Nov–Dec 1951 2-Month	-1.31	-0.07	-1.24	100th Wettest	Wettest since: 1950	1947
Oct–Dec 1951 3-Month	-1.40	0.01	-1.41	18th Driest	Driest since: 1933	2011
Oct–Dec 1951 3-Month	-1.40	0.01	-1.41	113th Wettest	Wettest since: 1950	2009
Sep–Dec 1951 4-Month	-0.99	-0.04	-0.95	26th Driest	Driest since: 1950	1924
Sep–Dec 1951 4-Month	-0.99	-0.04	-0.95	105th Wettest	Wettest since: 1949	2002
Aug–Dec 1951 5-Month	-1.38	-0.05	-1.33	15th Driest	Driest since: 1950	1924
Aug–Dec 1951 5-Month	-1.38	-0.05	-1.33	116th Wettest	Wettest since: 1949	1977
Jul–Dec 1951 6-Month	-1.29	-0.04	-1.25	12th Driest	Driest since: 1933	1924
Jul–Dec 1951 6-Month	-1.29	-0.04	-1.25	119th Wettest	Wettest since: 1950	1898
Jun–Dec 1951 7-Month	-1.31	-0.04	-1.27	12th Driest	Driest since: 1936	1924
Jun–Dec 1951 7-Month	-1.31	-0.04	-1.27	119th Wettest	Wettest since: 1950	1898
May–Dec 1951 8-Month	-1.33	-0.04	-1.29	11th Driest	Driest since: 1933	1924
May–Dec 1951 8-Month	-1.33	-0.04	-1.29	120th Wettest	Wettest since: 1950	1942, 1975
Apr–Dec 1951 9-Month	-1.08	-0.04	-1.04	16th Driest	Driest since: 1933	1924
Apr–Dec 1951 9-Month	-1.08	-0.04	-1.04	115th Wettest	Wettest since: 1950	2021
Mar–Dec 1951 10-Month	-0.83	-0.05	-0.78	23rd Driest	Driest since: 1938	1924
Mar–Dec 1951 10-Month	-0.83	-0.05	-0.78	108th Wettest	Wettest since: 1950	2021
Feb–Dec 1951 11-Month	-0.93	-0.07	-0.86	18th Driest	Driest since: 1936	2023
Feb–Dec 1951 11-Month	-0.93	-0.07	-0.86	113th Wettest	Wettest since: 1950	2021
Jan–Dec 1951 12-Month	-0.90	-0.05	-0.85	18th Driest	Driest since: 1933	2023
Jan–Dec 1951 12-Month	-0.90	-0.05	-0.85	113th Wettest	Wettest since: 1950	1991
Jul 1950–Dec 1951 18-Month	-0.93	-0.04	-0.89	9th Driest	Driest since: 1925	1904
	-0.93	-0.04	-0.89	121st Wettest	Wettest since: 1950	1946
	Ties: 1896
Jan 1950–Dec 1951 24-Month	-0.82	-0.04	-0.78	11th Driest	Driest since: 1925	2000
	-0.82	-0.04	-0.78	119th Wettest	Wettest since: 1950	1992
	Ties: 1917
Jan 1949–Dec 1951 36-Month	-0.55	-0.04	-0.51	13th Driest	Driest since: 1917	1904
Jan 1949–Dec 1951 36-Month	-0.55	-0.04	-0.51	116th Wettest	Wettest since: 1950	1993
Jan 1948–Dec 1951 48-Month	-0.27	-0.03	-0.24	37th Driest	Driest since: 1939	1904
Jan 1948–Dec 1951 48-Month	-0.27	-0.03	-0.24	91st Wettest	Wettest since: 1950	1994
Jan 1947–Dec 1951 60-Month	-0.11	-0.03	-0.08	56th Driest	Driest since: 1939	1906
Jan 1947–Dec 1951 60-Month	-0.11	-0.03	-0.08	71st Wettest	Wettest since: 1950	1995

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 28, 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 1951 Palmer Z-Index Rankings

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