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

January 1921 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1921 1-Month	-2.38	0.13	-2.51	9th Driest	Driest since: 1914	1907
January 1921 1-Month	-2.38	0.13	-2.51	123rd Wettest	Wettest since: 1920	1991
Dec 1920–Jan 1921 2-Month	0.59	0.03	0.56	91st Driest	Driest since: 1920	1907
Dec 1920–Jan 1921 2-Month	0.59	0.03	0.56	40th Wettest	Wettest since: 1919	1991
Nov 1920–Jan 1921 3-Month	0.54	-0.02	0.56	90th Driest	Driest since: 1920	1907
Nov 1920–Jan 1921 3-Month	0.54	-0.02	0.56	41st Wettest	Wettest since: 1919	1998
Oct 1920–Jan 1921 4-Month	0.51	0.03	0.48	89th Driest	Driest since: 1920	2012
	0.51	0.03	0.48	42nd Wettest	Wettest since: 1920	1919
	Ties: 1920
Sep 1920–Jan 1921 5-Month	0.55	-0.01	0.56	95th Driest	Driest since: 1920	1907
Sep 1920–Jan 1921 5-Month	0.55	-0.01	0.56	36th Wettest	Wettest since: 1919	1978
Aug 1920–Jan 1921 6-Month	0.62	-0.03	0.65	100th Driest	Driest since: 1920	1925
	0.62	-0.03	0.65	31st Wettest	Wettest since: 1919	1978
	Ties: 1912
Jul 1920–Jan 1921 7-Month	0.84	-0.01	0.85	116th Driest	Driest since: 1920	1925
Jul 1920–Jan 1921 7-Month	0.84	-0.01	0.85	15th Wettest	Wettest since: 1919	1978
Jun 1920–Jan 1921 8-Month	0.89	-0.01	0.90	117th Driest	Driest since: 1920	1925
Jun 1920–Jan 1921 8-Month	0.89	-0.01	0.90	14th Wettest	Wettest since: 1899	1978
May 1920–Jan 1921 9-Month	0.84	0.00	0.84	114th Driest	Driest since: 1920	1907
May 1920–Jan 1921 9-Month	0.84	0.00	0.84	17th Wettest	Wettest since: 1899	1992
Apr 1920–Jan 1921 10-Month	0.73	0.00	0.73	108th Driest	Driest since: 1920	1907
Apr 1920–Jan 1921 10-Month	0.73	0.00	0.73	23rd Wettest	Wettest since: 1919	1992
Mar 1920–Jan 1921 11-Month	0.56	-0.01	0.57	103rd Driest	Driest since: 1919	1925
Mar 1920–Jan 1921 11-Month	0.56	-0.01	0.57	28th Wettest	Wettest since: 1920	1992
Feb 1920–Jan 1921 12-Month	0.46	-0.03	0.49	101st Driest	Driest since: 1919	1963
Feb 1920–Jan 1921 12-Month	0.46	-0.03	0.49	30th Wettest	Wettest since: 1920	1992
Aug 1919–Jan 1921 18-Month	0.32	-0.03	0.35	101st Driest	Driest since: 1919	1905
Aug 1919–Jan 1921 18-Month	0.32	-0.03	0.35	29th Wettest	Wettest since: 1920	1992
Feb 1919–Jan 1921 24-Month	0.53	-0.03	0.56	120th Driest	Driest since: 1920	2001
Feb 1919–Jan 1921 24-Month	0.53	-0.03	0.56	10th Wettest	Wettest to Date	1993
Feb 1918–Jan 1921 36-Month	0.45	-0.03	0.48	118th Driest	Driest since: 1920	1905
Feb 1918–Jan 1921 36-Month	0.45	-0.03	0.48	11th Wettest	Wettest to Date	1994
Feb 1917–Jan 1921 48-Month	-0.03	-0.03	0.00	70th Driest	Driest since: 1920	1905
Feb 1917–Jan 1921 48-Month	-0.03	-0.03	0.00	58th Wettest	Wettest since: 1915	1995
Feb 1916–Jan 1921 60-Month	-0.05	-0.03	-0.02	66th Driest	Driest since: 1920	1907
Feb 1916–Jan 1921 60-Month	-0.05	-0.03	-0.02	61st Wettest	Wettest since: 1917	1993

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 1, 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

January 1921 Palmer Z-Index Rankings

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