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.

Texas, Climate Division 2

December 1991 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1991 1-Month	5.36	0.03	5.33	130th Driest	Driest since: 1990	2021
December 1991 1-Month	5.36	0.03	5.33	1st Wettest	Wettest to Date	1991
Nov–Dec 1991 2-Month	2.77	0.10	2.67	127th Driest	Driest since: 1990	2021
Nov–Dec 1991 2-Month	2.77	0.10	2.67	4th Wettest	Wettest since: 1984	1913
Oct–Dec 1991 3-Month	2.08	0.08	2.00	121st Driest	Driest since: 1990	1921
Oct–Dec 1991 3-Month	2.08	0.08	2.00	10th Wettest	Wettest since: 1986	2018
Sep–Dec 1991 4-Month	2.63	0.03	2.60	127th Driest	Driest since: 1990	2021
Sep–Dec 1991 4-Month	2.63	0.03	2.60	4th Wettest	Wettest since: 1986	2018
Aug–Dec 1991 5-Month	2.57	0.05	2.52	128th Driest	Driest since: 1990	1956
Aug–Dec 1991 5-Month	2.57	0.05	2.52	3rd Wettest	Wettest since: 1986	1986
Jul–Dec 1991 6-Month	2.40	0.07	2.33	127th Driest	Driest since: 1990	1954, 1956
Jul–Dec 1991 6-Month	2.40	0.07	2.33	4th Wettest	Wettest since: 1941	1941
Jun–Dec 1991 7-Month	2.54	0.09	2.45	129th Driest	Driest since: 1990	1956
	2.54	0.09	2.45	2nd Wettest	Wettest since: 1941	1941
	Ties: 1906
May–Dec 1991 8-Month	2.19	0.06	2.13	125th Driest	Driest since: 1990	1956
May–Dec 1991 8-Month	2.19	0.06	2.13	6th Wettest	Wettest since: 1941	1941
Apr–Dec 1991 9-Month	1.69	0.09	1.60	117th Driest	Driest since: 1990	2011
Apr–Dec 1991 9-Month	1.69	0.09	1.60	14th Wettest	Wettest since: 1957	1941
Mar–Dec 1991 10-Month	1.34	0.08	1.26	113th Driest	Driest since: 1990	2011
Mar–Dec 1991 10-Month	1.34	0.08	1.26	18th Wettest	Wettest since: 1957	1941
Feb–Dec 1991 11-Month	1.06	0.06	1.00	108th Driest	Driest since: 1990	2011
Feb–Dec 1991 11-Month	1.06	0.06	1.00	23rd Wettest	Wettest since: 1987	1941
Jan–Dec 1991 12-Month	1.16	0.05	1.11	110th Driest	Driest since: 1990	2011
Jan–Dec 1991 12-Month	1.16	0.05	1.11	21st Wettest	Wettest since: 1975	1941
Jul 1990–Dec 1991 18-Month	0.93	0.06	0.87	108th Driest	Driest since: 1990	1956
Jul 1990–Dec 1991 18-Month	0.93	0.06	0.87	22nd Wettest	Wettest since: 1987	1992
Jan 1990–Dec 1991 24-Month	0.96	0.06	0.90	118th Driest	Driest since: 1990	2012
	0.96	0.06	0.90	12th Wettest	Wettest since: 1969	1920
	Ties: 1914
Jan 1989–Dec 1991 36-Month	0.45	0.06	0.39	101st Driest	Driest since: 1990	2013
	0.45	0.06	0.39	28th Wettest	Wettest since: 1988	1915, 1992
	Ties: 1988
Jan 1988–Dec 1991 48-Month	0.21	0.07	0.14	81st Driest	Driest since: 1990	1954
	0.21	0.07	0.14	47th Wettest	Wettest since: 1988	1908
	Ties: 1933, 1969
Jan 1987–Dec 1991 60-Month	0.39	0.07	0.32	102nd Driest	Driest since: 1990	1956
	0.39	0.07	0.32	25th Wettest	Wettest since: 1988	1923
	Ties: 1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Texas, Climate Division 2

December 1991 Palmer Z-Index Rankings

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