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 1977 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1977 1-Month	-1.40	0.01	-1.41	14th Driest	Driest since: 1970	2021
December 1977 1-Month	-1.40	0.01	-1.41	117th Wettest	Wettest since: 1976	1986
Nov–Dec 1977 2-Month	-1.05	0.07	-1.12	27th Driest	Driest since: 1973	2021
Nov–Dec 1977 2-Month	-1.05	0.07	-1.12	104th Wettest	Wettest since: 1976	1986
Oct–Dec 1977 3-Month	-0.61	0.02	-0.63	47th Driest	Driest since: 1975	2021
	-0.61	0.02	-0.63	84th Wettest	Wettest since: 1976	1986
	Ties: 1967
Sep–Dec 1977 4-Month	-1.32	-0.05	-1.27	18th Driest	Driest since: 1973	2021
Sep–Dec 1977 4-Month	-1.32	-0.05	-1.27	113th Wettest	Wettest since: 1976	1974
Aug–Dec 1977 5-Month	-1.61	-0.05	-1.56	11th Driest	Driest since: 1956	1921
Aug–Dec 1977 5-Month	-1.61	-0.05	-1.56	120th Wettest	Wettest since: 1976	1974
Jul–Dec 1977 6-Month	-1.40	0.00	-1.40	16th Driest	Driest since: 1956	2020
Jul–Dec 1977 6-Month	-1.40	0.00	-1.40	115th Wettest	Wettest since: 1976	1974
Jun–Dec 1977 7-Month	-1.25	0.01	-1.26	17th Driest	Driest since: 1956	2011
Jun–Dec 1977 7-Month	-1.25	0.01	-1.26	114th Wettest	Wettest since: 1976	1986
May–Dec 1977 8-Month	-1.23	-0.01	-1.22	14th Driest	Driest since: 1956	2011
May–Dec 1977 8-Month	-1.23	-0.01	-1.22	117th Wettest	Wettest since: 1976	1941
Apr–Dec 1977 9-Month	-1.05	0.01	-1.06	18th Driest	Driest since: 1956	2011
Apr–Dec 1977 9-Month	-1.05	0.01	-1.06	113th Wettest	Wettest since: 1976	1941
Mar–Dec 1977 10-Month	-0.94	0.01	-0.95	19th Driest	Driest since: 1964	2011
	-0.94	0.01	-0.95	112th Wettest	Wettest since: 1976	1941
	Ties: 1964
Feb–Dec 1977 11-Month	-0.89	0.01	-0.90	19th Driest	Driest since: 1964	2011
Feb–Dec 1977 11-Month	-0.89	0.01	-0.90	112th Wettest	Wettest since: 1976	1941
Jan–Dec 1977 12-Month	-0.82	-0.01	-0.81	26th Driest	Driest since: 1964	2011
Jan–Dec 1977 12-Month	-0.82	-0.01	-0.81	105th Wettest	Wettest since: 1976	1941
Jul 1976–Dec 1977 18-Month	-0.15	0.00	-0.15	60th Driest	Driest since: 1971	2024
Jul 1976–Dec 1977 18-Month	-0.15	0.00	-0.15	70th Wettest	Wettest since: 1976	1941
Jan 1976–Dec 1977 24-Month	-0.28	0.00	-0.28	50th Driest	Driest since: 1967	2024
Jan 1976–Dec 1977 24-Month	-0.28	0.00	-0.28	80th Wettest	Wettest since: 1976	1941
Jan 1975–Dec 1977 36-Month	0.09	0.01	0.08	82nd Driest	Driest since: 1973	2024
Jan 1975–Dec 1977 36-Month	0.09	0.01	0.08	47th Wettest	Wettest since: 1976	1942
Jan 1974–Dec 1977 48-Month	0.30	0.01	0.29	98th Driest	Driest since: 1974	1956
Jan 1974–Dec 1977 48-Month	0.30	0.01	0.29	30th Wettest	Wettest since: 1976	1987
Jan 1973–Dec 1977 60-Month	0.27	0.01	0.26	92nd Driest	Driest since: 1974	2024
Jan 1973–Dec 1977 60-Month	0.27	0.01	0.26	35th Wettest	Wettest since: 1976	1915

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 23, 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 1977 Palmer Z-Index Rankings

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