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 7

December 1964 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1964 1-Month	-0.75	0.23	-0.98	44th Driest	Driest since: 1961	1970
December 1964 1-Month	-0.75	0.23	-0.98	87th Wettest	Wettest since: 1963	1991
Nov–Dec 1964 2-Month	-0.94	0.16	-1.10	41st Driest	Driest since: 1955	2012
Nov–Dec 1964 2-Month	-0.94	0.16	-1.10	90th Wettest	Wettest since: 1963	1940
Oct–Dec 1964 3-Month	-0.92	0.16	-1.08	32nd Driest	Driest since: 1956	1950
Oct–Dec 1964 3-Month	-0.92	0.16	-1.08	99th Wettest	Wettest since: 1963	1960
Sep–Dec 1964 4-Month	-0.46	0.03	-0.49	55th Driest	Driest since: 1963	2024
Sep–Dec 1964 4-Month	-0.46	0.03	-0.49	76th Wettest	Wettest since: 1962	1913
Aug–Dec 1964 5-Month	-0.50	-0.02	-0.48	53rd Driest	Driest since: 1963	2024
Aug–Dec 1964 5-Month	-0.50	-0.02	-0.48	78th Wettest	Wettest since: 1961	1998
Jul–Dec 1964 6-Month	-0.61	-0.03	-0.58	47th Driest	Driest since: 1963	1917
Jul–Dec 1964 6-Month	-0.61	-0.03	-0.58	84th Wettest	Wettest since: 1961	1919
Jun–Dec 1964 7-Month	-0.64	-0.05	-0.59	46th Driest	Driest since: 1963	1917
Jun–Dec 1964 7-Month	-0.64	-0.05	-0.59	85th Wettest	Wettest since: 1961	1919
May–Dec 1964 8-Month	-0.70	-0.04	-0.66	43rd Driest	Driest since: 1963	1917
May–Dec 1964 8-Month	-0.70	-0.04	-0.66	88th Wettest	Wettest since: 1961	1919
Apr–Dec 1964 9-Month	-0.73	-0.03	-0.70	40th Driest	Driest since: 1963	2011
Apr–Dec 1964 9-Month	-0.73	-0.03	-0.70	91st Wettest	Wettest since: 1961	1919
Mar–Dec 1964 10-Month	-0.58	-0.01	-0.57	41st Driest	Driest since: 1963	2011
Mar–Dec 1964 10-Month	-0.58	-0.01	-0.57	90th Wettest	Wettest since: 1961	1919
Feb–Dec 1964 11-Month	-0.50	-0.02	-0.48	49th Driest	Driest since: 1963	2011
Feb–Dec 1964 11-Month	-0.50	-0.02	-0.48	82nd Wettest	Wettest since: 1961	1919
Jan–Dec 1964 12-Month	-0.44	-0.03	-0.41	52nd Driest	Driest since: 1963	1917
	-0.44	-0.03	-0.41	79th Wettest	Wettest since: 1961	1919
	Ties: 1907
Jul 1963–Dec 1964 18-Month	-0.73	-0.03	-0.70	34th Driest	Driest since: 1963	1956
Jul 1963–Dec 1964 18-Month	-0.73	-0.03	-0.70	96th Wettest	Wettest since: 1962	1919
Jan 1963–Dec 1964 24-Month	-0.95	-0.03	-0.92	15th Driest	Driest since: 1963	1917
Jan 1963–Dec 1964 24-Month	-0.95	-0.03	-0.92	115th Wettest	Wettest since: 1962	1992
Jan 1962–Dec 1964 36-Month	-0.96	-0.02	-0.94	10th Driest	Driest since: 1956	1956
Jan 1962–Dec 1964 36-Month	-0.96	-0.02	-0.94	119th Wettest	Wettest since: 1963	1993
Jan 1961–Dec 1964 48-Month	-0.67	-0.03	-0.64	18th Driest	Driest since: 1957	1956
	-0.67	-0.03	-0.64	110th Wettest	Wettest since: 1963	1976
	Ties: 1917
Jan 1960–Dec 1964 60-Month	-0.25	-0.03	-0.22	38th Driest	Driest since: 1958	1956
Jan 1960–Dec 1964 60-Month	-0.25	-0.03	-0.22	89th Wettest	Wettest since: 1963	1976

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 7

December 1964 Palmer Z-Index Rankings

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