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.

South Dakota, Climate Division 8

December 1979 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1979 1-Month	-0.88	0.18	-1.06	17th Driest	Driest since: 1974	1943
December 1979 1-Month	-0.88	0.18	-1.06	114th Wettest	Wettest since: 1978	1951
Nov–Dec 1979 2-Month	-0.25	0.14	-0.39	49th Driest	Driest since: 1976	1912
Nov–Dec 1979 2-Month	-0.25	0.14	-0.39	82nd Wettest	Wettest since: 1978	1920, 2019
Oct–Dec 1979 3-Month	0.48	0.24	0.24	83rd Driest	Driest since: 1978	1938
Oct–Dec 1979 3-Month	0.48	0.24	0.24	48th Wettest	Wettest since: 1977	1998
Sep–Dec 1979 4-Month	0.14	0.23	-0.09	71st Driest	Driest since: 1978	1933
	0.14	0.23	-0.09	60th Wettest	Wettest since: 1977	2019
	Ties: 1970
Aug–Dec 1979 5-Month	0.24	0.25	-0.01	69th Driest	Driest since: 1978	2012
	0.24	0.25	-0.01	62nd Wettest	Wettest since: 1977	2019
	Ties: 1916
Jul–Dec 1979 6-Month	0.53	0.30	0.23	75th Driest	Driest since: 1978	2012
Jul–Dec 1979 6-Month	0.53	0.30	0.23	56th Wettest	Wettest since: 1977	2019
Jun–Dec 1979 7-Month	0.65	0.29	0.36	82nd Driest	Driest since: 1978	2012
Jun–Dec 1979 7-Month	0.65	0.29	0.36	49th Wettest	Wettest since: 1977	2019
May–Dec 1979 8-Month	0.49	0.28	0.21	75th Driest	Driest since: 1978	2012
May–Dec 1979 8-Month	0.49	0.28	0.21	56th Wettest	Wettest since: 1977	2019
Apr–Dec 1979 9-Month	0.39	0.28	0.11	69th Driest	Driest since: 1976	1934
Apr–Dec 1979 9-Month	0.39	0.28	0.11	62nd Wettest	Wettest since: 1978	2019
Mar–Dec 1979 10-Month	0.39	0.23	0.16	73rd Driest	Driest since: 1976	2012
	0.39	0.23	0.16	58th Wettest	Wettest since: 1978	2019
	Ties: 1901
Feb–Dec 1979 11-Month	0.27	0.22	0.05	66th Driest	Driest since: 1976	1934
Feb–Dec 1979 11-Month	0.27	0.22	0.05	65th Wettest	Wettest since: 1978	2019
Jan–Dec 1979 12-Month	0.34	0.22	0.12	70th Driest	Driest since: 1976	1934
Jan–Dec 1979 12-Month	0.34	0.22	0.12	61st Wettest	Wettest since: 1978	2019
Jul 1978–Dec 1979 18-Month	0.31	0.25	0.06	68th Driest	Driest since: 1976	1934
	0.31	0.25	0.06	62nd Wettest	Wettest since: 1978	2019
	Ties: 1929
Jan 1978–Dec 1979 24-Month	0.44	0.22	0.22	78th Driest	Driest since: 1977	1934
Jan 1978–Dec 1979 24-Month	0.44	0.22	0.22	52nd Wettest	Wettest since: 1978	2019
Jan 1977–Dec 1979 36-Month	1.02	0.21	0.81	111th Driest	Driest since: 1978	1935
Jan 1977–Dec 1979 36-Month	1.02	0.21	0.81	18th Wettest	Wettest since: 1921	2020
Jan 1976–Dec 1979 48-Month	0.37	0.20	0.17	75th Driest	Driest since: 1978	1936
Jan 1976–Dec 1979 48-Month	0.37	0.20	0.17	53rd Wettest	Wettest since: 1973	1998
Jan 1975–Dec 1979 60-Month	0.20	0.19	0.01	62nd Driest	Driest since: 1978	1937
Jan 1975–Dec 1979 60-Month	0.20	0.19	0.01	65th Wettest	Wettest since: 1973	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 1979 Palmer Z-Index Rankings

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