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 2015 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 2015 1-Month	1.52	0.03	1.49	109th Driest	Driest since: 2014	2021
December 2015 1-Month	1.52	0.03	1.49	22nd Wettest	Wettest since: 2002	1991
Nov–Dec 2015 2-Month	2.59	0.10	2.49	126th Driest	Driest since: 2014	2021
Nov–Dec 2015 2-Month	2.59	0.10	2.49	5th Wettest	Wettest since: 2004	1913
Oct–Dec 2015 3-Month	2.13	0.08	2.05	122nd Driest	Driest since: 2014	1921
Oct–Dec 2015 3-Month	2.13	0.08	2.05	9th Wettest	Wettest since: 2004	2018
Sep–Dec 2015 4-Month	0.84	0.03	0.81	104th Driest	Driest since: 2014	2021
Sep–Dec 2015 4-Month	0.84	0.03	0.81	27th Wettest	Wettest since: 2006	2018
Aug–Dec 2015 5-Month	0.73	0.05	0.68	102nd Driest	Driest since: 2014	1956
Aug–Dec 2015 5-Month	0.73	0.05	0.68	29th Wettest	Wettest since: 2004	1986
Jul–Dec 2015 6-Month	1.39	0.07	1.32	113th Driest	Driest since: 2014	1954, 1956
Jul–Dec 2015 6-Month	1.39	0.07	1.32	18th Wettest	Wettest since: 2004	1941
Jun–Dec 2015 7-Month	1.57	0.09	1.48	113th Driest	Driest since: 2014	1956
Jun–Dec 2015 7-Month	1.57	0.09	1.48	18th Wettest	Wettest since: 2007	1941
May–Dec 2015 8-Month	2.39	0.06	2.33	127th Driest	Driest since: 2014	1956
May–Dec 2015 8-Month	2.39	0.06	2.33	4th Wettest	Wettest since: 1941	1941
Apr–Dec 2015 9-Month	2.38	0.09	2.29	128th Driest	Driest since: 2014	2011
Apr–Dec 2015 9-Month	2.38	0.09	2.29	3rd Wettest	Wettest since: 1941	1941
Mar–Dec 2015 10-Month	2.15	0.08	2.07	128th Driest	Driest since: 2014	2011
Mar–Dec 2015 10-Month	2.15	0.08	2.07	3rd Wettest	Wettest since: 1941	1941
Feb–Dec 2015 11-Month	1.92	0.06	1.86	126th Driest	Driest since: 2014	2011
Feb–Dec 2015 11-Month	1.92	0.06	1.86	5th Wettest	Wettest since: 1997	1941
Jan–Dec 2015 12-Month	1.87	0.05	1.82	128th Driest	Driest since: 2014	2011
Jan–Dec 2015 12-Month	1.87	0.05	1.82	3rd Wettest	Wettest since: 1941	1941
Jul 2014–Dec 2015 18-Month	1.18	0.06	1.12	117th Driest	Driest since: 2014	1956
Jul 2014–Dec 2015 18-Month	1.18	0.06	1.12	13th Wettest	Wettest since: 2007	1992
Jan 2014–Dec 2015 24-Month	0.59	0.06	0.53	106th Driest	Driest since: 2014	2012
Jan 2014–Dec 2015 24-Month	0.59	0.06	0.53	24th Wettest	Wettest since: 2008	1920
Jan 2013–Dec 2015 36-Month	0.18	0.06	0.12	78th Driest	Driest since: 2014	2013
	0.18	0.06	0.12	51st Wettest	Wettest since: 2007	1915, 1992
	Ties: 1926
Jan 2012–Dec 2015 48-Month	-0.17	0.07	-0.24	34th Driest	Driest since: 2014	1954
Jan 2012–Dec 2015 48-Month	-0.17	0.07	-0.24	94th Wettest	Wettest since: 2010	1908
Jan 2011–Dec 2015 60-Month	-0.58	0.07	-0.65	10th Driest	Driest since: 2014	1956
	-0.58	0.07	-0.65	117th Wettest	Wettest since: 2011	1923
	Ties: 1952

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 2015 Palmer Z-Index Rankings

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