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

October 1977 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1977 1-Month	0.26	-0.09	0.35	85th Driest	Driest since: 1975	2024
October 1977 1-Month	0.26	-0.09	0.35	46th Wettest	Wettest since: 1976	1896
Sep–Oct 1977 2-Month	-1.58	-0.17	-1.41	28th Driest	Driest since: 1961	1934
	-1.58	-0.17	-1.41	103rd Wettest	Wettest since: 1976	1974
	Ties: 1939
Aug–Oct 1977 3-Month	-1.98	-0.12	-1.86	15th Driest	Driest since: 1956	1952
Aug–Oct 1977 3-Month	-1.98	-0.12	-1.86	116th Wettest	Wettest since: 1976	1974
Jul–Oct 1977 4-Month	-1.57	-0.03	-1.54	18th Driest	Driest since: 1965	2020
Jul–Oct 1977 4-Month	-1.57	-0.03	-1.54	113th Wettest	Wettest since: 1976	1974
Jun–Oct 1977 5-Month	-1.33	-0.01	-1.32	20th Driest	Driest since: 1957	2011
Jun–Oct 1977 5-Month	-1.33	-0.01	-1.32	111th Wettest	Wettest since: 1976	1941
May–Oct 1977 6-Month	-1.30	-0.03	-1.27	17th Driest	Driest since: 1956	2011
May–Oct 1977 6-Month	-1.30	-0.03	-1.27	114th Wettest	Wettest since: 1976	1941
Apr–Oct 1977 7-Month	-1.05	-0.01	-1.04	23rd Driest	Driest since: 1965	2011
Apr–Oct 1977 7-Month	-1.05	-0.01	-1.04	108th Wettest	Wettest since: 1976	1941
Mar–Oct 1977 8-Month	-0.91	-0.01	-0.90	23rd Driest	Driest since: 1964	2011
	-0.91	-0.01	-0.90	108th Wettest	Wettest since: 1976	1941
	Ties: 1947
Feb–Oct 1977 9-Month	-0.86	-0.01	-0.85	23rd Driest	Driest since: 1964	2011
	-0.86	-0.01	-0.85	108th Wettest	Wettest since: 1976	1941
	Ties: 1947
Jan–Oct 1977 10-Month	-0.78	-0.03	-0.75	28th Driest	Driest since: 1967	2011
Jan–Oct 1977 10-Month	-0.78	-0.03	-0.75	103rd Wettest	Wettest since: 1976	1941
Dec 1976–Oct 1977 11-Month	-0.67	-0.02	-0.65	37th Driest	Driest since: 1969	2011
	-0.67	-0.02	-0.65	93rd Wettest	Wettest since: 1976	1941
	Ties: 1969
Nov 1976–Oct 1977 12-Month	-0.52	-0.01	-0.51	49th Driest	Driest since: 1967	2011
Nov 1976–Oct 1977 12-Month	-0.52	-0.01	-0.51	81st Wettest	Wettest since: 1976	1941
May 1976–Oct 1977 18-Month	-0.01	-0.01	0.00	74th Driest	Driest since: 1971	2024
May 1976–Oct 1977 18-Month	-0.01	-0.01	0.00	56th Wettest	Wettest since: 1976	1987
Nov 1975–Oct 1977 24-Month	-0.23	0.00	-0.23	51st Driest	Driest since: 1972	2024
	-0.23	0.00	-0.23	78th Wettest	Wettest since: 1976	1941
	Ties: 1936, 1966
Nov 1974–Oct 1977 36-Month	0.24	0.01	0.23	91st Driest	Driest since: 1974	2024
Nov 1974–Oct 1977 36-Month	0.24	0.01	0.23	37th Wettest	Wettest since: 1976	1942
Nov 1973–Oct 1977 48-Month	0.28	0.01	0.27	97th Driest	Driest since: 1974	1954, 1956
	0.28	0.01	0.27	30th Wettest	Wettest since: 1976	1987
	Ties: 1961
Nov 1972–Oct 1977 60-Month	0.28	0.01	0.27	94th Driest	Driest since: 1975	2024
Nov 1972–Oct 1977 60-Month	0.28	0.01	0.27	32nd 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 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

October 1977 Palmer Z-Index Rankings

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