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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 1977 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1977 1-Month	2.24	0.14	2.10	124th Driest	Driest since: 1976	1952
December 1977 1-Month	2.24	0.14	2.10	7th Wettest	Wettest since: 1968	2013
Nov–Dec 1977 2-Month	2.01	0.10	1.91	127th Driest	Driest since: 1976	1954
Nov–Dec 1977 2-Month	2.01	0.10	1.91	4th Wettest	Wettest since: 1922	1896
Oct–Dec 1977 3-Month	2.17	0.13	2.04	124th Driest	Driest since: 1976	1963
Oct–Dec 1977 3-Month	2.17	0.13	2.04	7th Wettest	Wettest since: 1971	1982
Sep–Dec 1977 4-Month	3.44	0.11	3.33	128th Driest	Driest since: 1976	1952
Sep–Dec 1977 4-Month	3.44	0.11	3.33	3rd Wettest	Wettest to Date	2013
Aug–Dec 1977 5-Month	2.88	0.11	2.77	127th Driest	Driest since: 1976	1934
Aug–Dec 1977 5-Month	2.88	0.11	2.77	4th Wettest	Wettest to Date	2013
Jul–Dec 1977 6-Month	1.99	0.13	1.86	125th Driest	Driest since: 1976	1936
Jul–Dec 1977 6-Month	1.99	0.13	1.86	6th Wettest	Wettest since: 1915	2013
Jun–Dec 1977 7-Month	1.59	0.12	1.47	116th Driest	Driest since: 1976	1936
Jun–Dec 1977 7-Month	1.59	0.12	1.47	15th Wettest	Wettest since: 1972	1915
May–Dec 1977 8-Month	1.17	0.12	1.05	106th Driest	Driest since: 1976	1936
May–Dec 1977 8-Month	1.17	0.12	1.05	25th Wettest	Wettest since: 1972	2013
Apr–Dec 1977 9-Month	0.61	0.09	0.52	87th Driest	Driest since: 1976	1936
Apr–Dec 1977 9-Month	0.61	0.09	0.52	44th Wettest	Wettest since: 1975	2013
Mar–Dec 1977 10-Month	0.56	0.08	0.48	86th Driest	Driest since: 1976	1936
Mar–Dec 1977 10-Month	0.56	0.08	0.48	45th Wettest	Wettest since: 1975	1982
Feb–Dec 1977 11-Month	0.50	0.08	0.42	83rd Driest	Driest since: 1976	1936
	0.50	0.08	0.42	48th Wettest	Wettest since: 1975	1982
	Ties: 1951
Jan–Dec 1977 12-Month	0.50	0.09	0.41	84th Driest	Driest since: 1976	1934
	0.50	0.09	0.41	47th Wettest	Wettest since: 1975	1982
	Ties: 1945
Jul 1976–Dec 1977 18-Month	-0.08	0.10	-0.18	57th Driest	Driest since: 1976	1934
	-0.08	0.10	-0.18	73rd Wettest	Wettest since: 1975	2014
	Ties: 1905
Jan 1976–Dec 1977 24-Month	-0.06	0.09	-0.15	55th Driest	Driest since: 1969	1937
Jan 1976–Dec 1977 24-Month	-0.06	0.09	-0.15	75th Wettest	Wettest since: 1976	2014
Jan 1975–Dec 1977 36-Month	0.38	0.09	0.29	86th Driest	Driest since: 1976	1936
Jan 1975–Dec 1977 36-Month	0.38	0.09	0.29	43rd Wettest	Wettest since: 1975	1972
Jan 1974–Dec 1977 48-Month	0.14	0.08	0.06	65th Driest	Driest since: 1976	1937
	0.14	0.08	0.06	63rd Wettest	Wettest since: 1976	1973
	Ties: 1976
Jan 1973–Dec 1977 60-Month	0.21	0.08	0.13	74th Driest	Driest since: 1968	1938
Jan 1973–Dec 1977 60-Month	0.21	0.08	0.13	53rd Wettest	Wettest since: 1976	2014

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 27, 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 1977 Palmer Z-Index Rankings

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