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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.

South Dakota, Climate Division 8

December 1976 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1976 1-Month	-0.59	0.18	-0.77	32nd Driest	Driest since: 1974	1943
December 1976 1-Month	-0.59	0.18	-0.77	99th Wettest	Wettest since: 1975	1951
Nov–Dec 1976 2-Month	-0.79	0.14	-0.93	23rd Driest	Driest since: 1974	1912
Nov–Dec 1976 2-Month	-0.79	0.14	-0.93	108th Wettest	Wettest since: 1975	1920, 2019
Oct–Dec 1976 3-Month	-0.92	0.24	-1.16	15th Driest	Driest since: 1974	1938
	-0.92	0.24	-1.16	116th Wettest	Wettest since: 1975	1998
	Ties: 1964
Sep–Dec 1976 4-Month	-0.85	0.23	-1.08	18th Driest	Driest since: 1974	1933
Sep–Dec 1976 4-Month	-0.85	0.23	-1.08	113th Wettest	Wettest since: 1975	2019
Aug–Dec 1976 5-Month	-1.14	0.25	-1.39	14th Driest	Driest since: 1974	2012
Aug–Dec 1976 5-Month	-1.14	0.25	-1.39	117th Wettest	Wettest since: 1975	2019
Jul–Dec 1976 6-Month	-1.33	0.30	-1.63	9th Driest	Driest since: 1974	2012
Jul–Dec 1976 6-Month	-1.33	0.30	-1.63	122nd Wettest	Wettest since: 1975	2019
Jun–Dec 1976 7-Month	-1.81	0.29	-2.10	5th Driest	Driest since: 1940	2012
Jun–Dec 1976 7-Month	-1.81	0.29	-2.10	126th Wettest	Wettest since: 1975	2019
May–Dec 1976 8-Month	-1.83	0.28	-2.11	5th Driest	Driest since: 1940	2012
	-1.83	0.28	-2.11	126th Wettest	Wettest since: 1975	2019
	Ties: 1933
Apr–Dec 1976 9-Month	-1.78	0.28	-2.06	5th Driest	Driest since: 1940	1934
Apr–Dec 1976 9-Month	-1.78	0.28	-2.06	126th Wettest	Wettest since: 1975	2019
Mar–Dec 1976 10-Month	-1.81	0.23	-2.04	4th Driest	Driest since: 1936	2012
Mar–Dec 1976 10-Month	-1.81	0.23	-2.04	127th Wettest	Wettest since: 1975	2019
Feb–Dec 1976 11-Month	-1.73	0.22	-1.95	3rd Driest	Driest since: 1934	1934
Feb–Dec 1976 11-Month	-1.73	0.22	-1.95	128th Wettest	Wettest since: 1975	2019
Jan–Dec 1976 12-Month	-1.57	0.22	-1.79	3rd Driest	Driest since: 1934	1934
Jan–Dec 1976 12-Month	-1.57	0.22	-1.79	128th Wettest	Wettest since: 1975	2019
Jul 1975–Dec 1976 18-Month	-1.34	0.25	-1.59	2nd Driest	Driest since: 1936	1934
	-1.34	0.25	-1.59	128th Wettest	Wettest since: 1975	2019
	Ties: 1936
Jan 1975–Dec 1976 24-Month	-1.03	0.22	-1.25	6th Driest	Driest since: 1940	1934
Jan 1975–Dec 1976 24-Month	-1.03	0.22	-1.25	124th Wettest	Wettest since: 1975	2019
Jan 1974–Dec 1976 36-Month	-1.07	0.21	-1.28	4th Driest	Driest since: 1936	1935
Jan 1974–Dec 1976 36-Month	-1.07	0.21	-1.28	125th Wettest	Wettest since: 1975	2020
Jan 1973–Dec 1976 48-Month	-0.53	0.20	-0.73	10th Driest	Driest since: 1941	1936
Jan 1973–Dec 1976 48-Month	-0.53	0.20	-0.73	118th Wettest	Wettest since: 1975	1998
Jan 1972–Dec 1976 60-Month	-0.25	0.19	-0.44	23rd Driest	Driest since: 1967	1937
Jan 1972–Dec 1976 60-Month	-0.25	0.19	-0.44	104th Wettest	Wettest since: 1975	1999

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

South Dakota, Climate Division 8

December 1976 Palmer Z-Index Rankings

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