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 5

December 1939 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1939 1-Month	0.15	0.01	0.14	83rd Driest	Driest since: 1938	2021
December 1939 1-Month	0.15	0.01	0.14	48th Wettest	Wettest since: 1937	1986
Nov–Dec 1939 2-Month	1.35	0.07	1.28	113th Driest	Driest since: 1938	2021
Nov–Dec 1939 2-Month	1.35	0.07	1.28	18th Wettest	Wettest since: 1931	1986
Oct–Dec 1939 3-Month	0.78	0.02	0.76	101st Driest	Driest since: 1938	2021
Oct–Dec 1939 3-Month	0.78	0.02	0.76	30th Wettest	Wettest since: 1930	1986
Sep–Dec 1939 4-Month	-0.12	-0.05	-0.07	74th Driest	Driest since: 1938	2021
Sep–Dec 1939 4-Month	-0.12	-0.05	-0.07	57th Wettest	Wettest since: 1937	1974
Aug–Dec 1939 5-Month	0.15	-0.05	0.20	83rd Driest	Driest since: 1938	1921
Aug–Dec 1939 5-Month	0.15	-0.05	0.20	48th Wettest	Wettest since: 1936	1974
Jul–Dec 1939 6-Month	0.28	0.00	0.28	84th Driest	Driest since: 1938	2020
	0.28	0.00	0.28	47th Wettest	Wettest since: 1936	1974
	Ties: 1899
Jun–Dec 1939 7-Month	0.04	0.01	0.03	71st Driest	Driest since: 1937	2011
Jun–Dec 1939 7-Month	0.04	0.01	0.03	60th Wettest	Wettest since: 1938	1986
May–Dec 1939 8-Month	-0.07	-0.01	-0.06	72nd Driest	Driest since: 1937	2011
May–Dec 1939 8-Month	-0.07	-0.01	-0.06	59th Wettest	Wettest since: 1938	1941
Apr–Dec 1939 9-Month	-0.17	0.01	-0.18	67th Driest	Driest since: 1937	2011
Apr–Dec 1939 9-Month	-0.17	0.01	-0.18	64th Wettest	Wettest since: 1938	1941
Mar–Dec 1939 10-Month	-0.13	0.01	-0.14	72nd Driest	Driest since: 1937	2011
Mar–Dec 1939 10-Month	-0.13	0.01	-0.14	59th Wettest	Wettest since: 1938	1941
Feb–Dec 1939 11-Month	-0.16	0.01	-0.17	74th Driest	Driest since: 1937	2011
Feb–Dec 1939 11-Month	-0.16	0.01	-0.17	57th Wettest	Wettest since: 1938	1941
Jan–Dec 1939 12-Month	0.04	-0.01	0.05	77th Driest	Driest since: 1937	2011
Jan–Dec 1939 12-Month	0.04	-0.01	0.05	54th Wettest	Wettest since: 1938	1941
Jul 1938–Dec 1939 18-Month	-0.02	0.00	-0.02	76th Driest	Driest since: 1938	2024
Jul 1938–Dec 1939 18-Month	-0.02	0.00	-0.02	54th Wettest	Wettest since: 1933	1941
Jan 1938–Dec 1939 24-Month	0.08	0.00	0.08	80th Driest	Driest since: 1938	2024
Jan 1938–Dec 1939 24-Month	0.08	0.00	0.08	50th Wettest	Wettest since: 1933	1941
Jan 1937–Dec 1939 36-Month	-0.05	0.01	-0.06	66th Driest	Driest since: 1937	2024
Jan 1937–Dec 1939 36-Month	-0.05	0.01	-0.06	63rd Wettest	Wettest since: 1938	1942
Jan 1936–Dec 1939 48-Month	-0.02	0.01	-0.03	67th Driest	Driest since: 1938	1956
	-0.02	0.01	-0.03	61st Wettest	Wettest since: 1934	1987
	Ties: 1923
Jan 1935–Dec 1939 60-Month	-0.08	0.01	-0.09	57th Driest	Driest since: 1938	2024
Jan 1935–Dec 1939 60-Month	-0.08	0.01	-0.09	70th Wettest	Wettest since: 1935	1915

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 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 5

December 1939 Palmer Z-Index Rankings

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