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 1929 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1929 1-Month	-0.74	-0.10	-0.64	61st Driest	Driest since: 1926	2021
December 1929 1-Month	-0.74	-0.10	-0.64	70th Wettest	Wettest since: 1928	2009
Nov–Dec 1929 2-Month	0.98	-0.07	1.05	101st Driest	Driest since: 1928	1906
Nov–Dec 1929 2-Month	0.98	-0.07	1.05	30th Wettest	Wettest since: 1920	1947
Oct–Dec 1929 3-Month	1.27	0.01	1.26	110th Driest	Driest since: 1928	2011
Oct–Dec 1929 3-Month	1.27	0.01	1.26	21st Wettest	Wettest since: 1925	2009
Sep–Dec 1929 4-Month	1.09	-0.04	1.13	113th Driest	Driest since: 1928	1924
Sep–Dec 1929 4-Month	1.09	-0.04	1.13	18th Wettest	Wettest since: 1920	2002
Aug–Dec 1929 5-Month	0.72	-0.05	0.77	109th Driest	Driest since: 1928	1924
Aug–Dec 1929 5-Month	0.72	-0.05	0.77	22nd Wettest	Wettest since: 1920	1977
Jul–Dec 1929 6-Month	1.14	-0.04	1.18	120th Driest	Driest since: 1928	1924
Jul–Dec 1929 6-Month	1.14	-0.04	1.18	11th Wettest	Wettest since: 1920	1898
Jun–Dec 1929 7-Month	1.07	-0.04	1.11	119th Driest	Driest since: 1928	1924
	1.07	-0.04	1.11	12th Wettest	Wettest since: 1923	1898
	Ties: 1923
May–Dec 1929 8-Month	1.08	-0.04	1.12	121st Driest	Driest since: 1928	1924
May–Dec 1929 8-Month	1.08	-0.04	1.12	10th Wettest	Wettest since: 1923	1942, 1975
Apr–Dec 1929 9-Month	0.76	-0.04	0.80	109th Driest	Driest since: 1927	1924
Apr–Dec 1929 9-Month	0.76	-0.04	0.80	22nd Wettest	Wettest since: 1928	2021
Mar–Dec 1929 10-Month	0.75	-0.05	0.80	111th Driest	Driest since: 1928	1924
Mar–Dec 1929 10-Month	0.75	-0.05	0.80	20th Wettest	Wettest since: 1926	2021
Feb–Dec 1929 11-Month	0.79	-0.07	0.86	116th Driest	Driest since: 1928	2023
Feb–Dec 1929 11-Month	0.79	-0.07	0.86	15th Wettest	Wettest since: 1926	2021
Jan–Dec 1929 12-Month	0.99	-0.05	1.04	122nd Driest	Driest since: 1928	2023
Jan–Dec 1929 12-Month	0.99	-0.05	1.04	9th Wettest	Wettest to Date	1991
Jul 1928–Dec 1929 18-Month	0.69	-0.04	0.73	120th Driest	Driest since: 1928	1904
Jul 1928–Dec 1929 18-Month	0.69	-0.04	0.73	10th Wettest	Wettest since: 1926	1946
Jan 1928–Dec 1929 24-Month	0.72	-0.04	0.76	126th Driest	Driest since: 1928	2000
Jan 1928–Dec 1929 24-Month	0.72	-0.04	0.76	4th Wettest	Wettest to Date	1992
Jan 1927–Dec 1929 36-Month	0.32	-0.04	0.36	111th Driest	Driest since: 1928	1904
Jan 1927–Dec 1929 36-Month	0.32	-0.04	0.36	18th Wettest	Wettest since: 1920	1993
Jan 1926–Dec 1929 48-Month	0.48	-0.03	0.51	121st Driest	Driest since: 1928	1904
Jan 1926–Dec 1929 48-Month	0.48	-0.03	0.51	7th Wettest	Wettest to Date	1994
Jan 1925–Dec 1929 60-Month	0.31	-0.03	0.34	112th Driest	Driest since: 1928	1906
Jan 1925–Dec 1929 60-Month	0.31	-0.03	0.34	15th Wettest	Wettest to Date	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 1929 Palmer Z-Index Rankings

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