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 1915 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1915 1-Month	1.04	0.18	0.86	105th Driest	Driest since: 1914	1943
December 1915 1-Month	1.04	0.18	0.86	26th Wettest	Wettest since: 1909	1951
Nov–Dec 1915 2-Month	0.63	0.14	0.49	97th Driest	Driest since: 1914	1912
Nov–Dec 1915 2-Month	0.63	0.14	0.49	34th Wettest	Wettest since: 1909	1920, 2019
Oct–Dec 1915 3-Month	1.00	0.24	0.76	101st Driest	Driest since: 1914	1938
Oct–Dec 1915 3-Month	1.00	0.24	0.76	30th Wettest	Wettest since: 1911	1998
Sep–Dec 1915 4-Month	2.21	0.23	1.98	124th Driest	Driest since: 1914	1933
Sep–Dec 1915 4-Month	2.21	0.23	1.98	7th Wettest	Wettest to Date	2019
Aug–Dec 1915 5-Month	2.23	0.25	1.98	124th Driest	Driest since: 1914	2012
Aug–Dec 1915 5-Month	2.23	0.25	1.98	7th Wettest	Wettest to Date	2019
Jul–Dec 1915 6-Month	3.31	0.30	3.01	129th Driest	Driest since: 1914	2012
Jul–Dec 1915 6-Month	3.31	0.30	3.01	2nd Wettest	Wettest to Date	2019
Jun–Dec 1915 7-Month	3.53	0.29	3.24	129th Driest	Driest since: 1914	2012
Jun–Dec 1915 7-Month	3.53	0.29	3.24	2nd Wettest	Wettest to Date	2019
May–Dec 1915 8-Month	3.45	0.28	3.17	129th Driest	Driest since: 1914	2012
May–Dec 1915 8-Month	3.45	0.28	3.17	2nd Wettest	Wettest to Date	2019
Apr–Dec 1915 9-Month	3.30	0.28	3.02	129th Driest	Driest since: 1914	1934
Apr–Dec 1915 9-Month	3.30	0.28	3.02	2nd Wettest	Wettest to Date	2019
Mar–Dec 1915 10-Month	3.08	0.23	2.85	129th Driest	Driest since: 1914	2012
Mar–Dec 1915 10-Month	3.08	0.23	2.85	2nd Wettest	Wettest to Date	2019
Feb–Dec 1915 11-Month	3.20	0.22	2.98	129th Driest	Driest since: 1914	1934
Feb–Dec 1915 11-Month	3.20	0.22	2.98	2nd Wettest	Wettest to Date	2019
Jan–Dec 1915 12-Month	2.98	0.22	2.76	129th Driest	Driest since: 1914	1934
Jan–Dec 1915 12-Month	2.98	0.22	2.76	2nd Wettest	Wettest to Date	2019
Jul 1914–Dec 1915 18-Month	2.10	0.25	1.85	128th Driest	Driest since: 1914	1934
Jul 1914–Dec 1915 18-Month	2.10	0.25	1.85	2nd Wettest	Wettest to Date	2019
Jan 1914–Dec 1915 24-Month	1.60	0.22	1.38	123rd Driest	Driest since: 1914	1934
Jan 1914–Dec 1915 24-Month	1.60	0.22	1.38	7th Wettest	Wettest to Date	2019
Jan 1913–Dec 1915 36-Month	0.88	0.21	0.67	104th Driest	Driest since: 1914	1935
Jan 1913–Dec 1915 36-Month	0.88	0.21	0.67	25th Wettest	Wettest since: 1908	2020
Jan 1912–Dec 1915 48-Month	0.70	0.20	0.50	96th Driest	Driest since: 1914	1936
Jan 1912–Dec 1915 48-Month	0.70	0.20	0.50	32nd Wettest	Wettest since: 1909	1998
Jan 1911–Dec 1915 60-Month	0.51	0.19	0.32	83rd Driest	Driest since: 1914	1937
Jan 1911–Dec 1915 60-Month	0.51	0.19	0.32	44th Wettest	Wettest since: 1910	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 1915 Palmer Z-Index Rankings

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