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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.

North Dakota, Climate Division 7

December 1970 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1970 1-Month	-0.13	0.14	-0.27	56th Driest	Driest since: 1967	1952
	-0.13	0.14	-0.27	75th Wettest	Wettest since: 1969	2013
	Ties: 1895
Nov–Dec 1970 2-Month	1.17	0.10	1.07	117th Driest	Driest since: 1969	1954
Nov–Dec 1970 2-Month	1.17	0.10	1.07	14th Wettest	Wettest since: 1958	1896
Oct–Dec 1970 3-Month	0.81	0.13	0.68	105th Driest	Driest since: 1969	1963
	0.81	0.13	0.68	26th Wettest	Wettest since: 1951	1982
	Ties: 1923
Sep–Dec 1970 4-Month	0.85	0.11	0.74	102nd Driest	Driest since: 1969	1952
Sep–Dec 1970 4-Month	0.85	0.11	0.74	29th Wettest	Wettest since: 1951	2013
Aug–Dec 1970 5-Month	0.69	0.11	0.58	95th Driest	Driest since: 1969	1934
Aug–Dec 1970 5-Month	0.69	0.11	0.58	36th Wettest	Wettest since: 1957	2013
Jul–Dec 1970 6-Month	1.05	0.13	0.92	104th Driest	Driest since: 1969	1936
Jul–Dec 1970 6-Month	1.05	0.13	0.92	27th Wettest	Wettest since: 1951	2013
Jun–Dec 1970 7-Month	0.97	0.12	0.85	102nd Driest	Driest since: 1969	1936
Jun–Dec 1970 7-Month	0.97	0.12	0.85	29th Wettest	Wettest since: 1957	1915
May–Dec 1970 8-Month	1.58	0.12	1.46	115th Driest	Driest since: 1969	1936
May–Dec 1970 8-Month	1.58	0.12	1.46	16th Wettest	Wettest since: 1942	2013
Apr–Dec 1970 9-Month	1.83	0.09	1.74	120th Driest	Driest since: 1969	1936
Apr–Dec 1970 9-Month	1.83	0.09	1.74	11th Wettest	Wettest since: 1927	2013
Mar–Dec 1970 10-Month	1.55	0.08	1.47	117th Driest	Driest since: 1969	1936
Mar–Dec 1970 10-Month	1.55	0.08	1.47	14th Wettest	Wettest since: 1942	1982
Feb–Dec 1970 11-Month	1.33	0.08	1.25	114th Driest	Driest since: 1969	1936
Feb–Dec 1970 11-Month	1.33	0.08	1.25	17th Wettest	Wettest since: 1942	1982
Jan–Dec 1970 12-Month	1.25	0.09	1.16	115th Driest	Driest since: 1969	1934
Jan–Dec 1970 12-Month	1.25	0.09	1.16	16th Wettest	Wettest since: 1942	1982
Jul 1969–Dec 1970 18-Month	0.79	0.10	0.69	101st Driest	Driest since: 1969	1934
Jul 1969–Dec 1970 18-Month	0.79	0.10	0.69	29th Wettest	Wettest since: 1947	2014
Jan 1969–Dec 1970 24-Month	0.61	0.09	0.52	95th Driest	Driest since: 1969	1937
	0.61	0.09	0.52	35th Wettest	Wettest since: 1966	2014
	Ties: 1966
Jan 1968–Dec 1970 36-Month	0.28	0.09	0.19	78th Driest	Driest since: 1969	1936
Jan 1968–Dec 1970 36-Month	0.28	0.09	0.19	51st Wettest	Wettest since: 1967	1972
Jan 1967–Dec 1970 48-Month	0.32	0.08	0.24	82nd Driest	Driest since: 1969	1937
	0.32	0.08	0.24	46th Wettest	Wettest since: 1968	1973
	Ties: 1912, 1968
Jan 1966–Dec 1970 60-Month	0.31	0.08	0.23	84th Driest	Driest since: 1969	1938
Jan 1966–Dec 1970 60-Month	0.31	0.08	0.23	43rd Wettest	Wettest since: 1967	2014

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

North Dakota, Climate Division 7

December 1970 Palmer Z-Index Rankings

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