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.

North Dakota, Climate Division 7

December 1940 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1940 1-Month	-0.83	0.14	-0.97	13th Driest	Driest since: 1913	1952
December 1940 1-Month	-0.83	0.14	-0.97	118th Wettest	Wettest since: 1939	2013
Nov–Dec 1940 2-Month	-0.34	0.10	-0.44	46th Driest	Driest since: 1939	1954
Nov–Dec 1940 2-Month	-0.34	0.10	-0.44	85th Wettest	Wettest since: 1938	1896
Oct–Dec 1940 3-Month	-0.07	0.13	-0.20	60th Driest	Driest since: 1939	1963
Oct–Dec 1940 3-Month	-0.07	0.13	-0.20	71st Wettest	Wettest since: 1933	1982
Sep–Dec 1940 4-Month	-0.26	0.11	-0.37	55th Driest	Driest since: 1939	1952
	-0.26	0.11	-0.37	76th Wettest	Wettest since: 1932	2013
	Ties: 1902
Aug–Dec 1940 5-Month	-0.42	0.11	-0.53	39th Driest	Driest since: 1939	1934
Aug–Dec 1940 5-Month	-0.42	0.11	-0.53	92nd Wettest	Wettest since: 1932	2013
Jul–Dec 1940 6-Month	0.02	0.13	-0.11	64th Driest	Driest since: 1939	1936
	0.02	0.13	-0.11	67th Wettest	Wettest since: 1931	2013
	Ties: 1901
Jun–Dec 1940 7-Month	-0.32	0.12	-0.44	50th Driest	Driest since: 1939	1936
Jun–Dec 1940 7-Month	-0.32	0.12	-0.44	81st Wettest	Wettest since: 1932	1915
May–Dec 1940 8-Month	-0.56	0.12	-0.68	44th Driest	Driest since: 1939	1936
May–Dec 1940 8-Month	-0.56	0.12	-0.68	87th Wettest	Wettest since: 1938	2013
Apr–Dec 1940 9-Month	-0.03	0.09	-0.12	65th Driest	Driest since: 1939	1936
Apr–Dec 1940 9-Month	-0.03	0.09	-0.12	66th Wettest	Wettest since: 1929	2013
Mar–Dec 1940 10-Month	0.01	0.08	-0.07	64th Driest	Driest since: 1939	1936
	0.01	0.08	-0.07	67th Wettest	Wettest since: 1929	1982
	Ties: 1904
Feb–Dec 1940 11-Month	0.02	0.08	-0.06	63rd Driest	Driest since: 1939	1936
Feb–Dec 1940 11-Month	0.02	0.08	-0.06	68th Wettest	Wettest since: 1929	1982
Jan–Dec 1940 12-Month	-0.10	0.09	-0.19	59th Driest	Driest since: 1939	1934
Jan–Dec 1940 12-Month	-0.10	0.09	-0.19	72nd Wettest	Wettest since: 1932	1982
Jul 1939–Dec 1940 18-Month	-0.43	0.10	-0.53	39th Driest	Driest since: 1939	1934
Jul 1939–Dec 1940 18-Month	-0.43	0.10	-0.53	91st Wettest	Wettest since: 1933	2014
Jan 1939–Dec 1940 24-Month	-0.45	0.09	-0.54	36th Driest	Driest since: 1939	1937
Jan 1939–Dec 1940 24-Month	-0.45	0.09	-0.54	94th Wettest	Wettest since: 1933	2014
Jan 1938–Dec 1940 36-Month	-0.45	0.09	-0.54	25th Driest	Driest since: 1939	1936
Jan 1938–Dec 1940 36-Month	-0.45	0.09	-0.54	104th Wettest	Wettest since: 1933	1972
Jan 1937–Dec 1940 48-Month	-0.57	0.08	-0.65	17th Driest	Driest since: 1939	1937
Jan 1937–Dec 1940 48-Month	-0.57	0.08	-0.65	111th Wettest	Wettest since: 1933	1973
Jan 1936–Dec 1940 60-Month	-0.89	0.08	-0.97	7th Driest	Driest since: 1939	1938
Jan 1936–Dec 1940 60-Month	-0.89	0.08	-0.97	120th Wettest	Wettest since: 1935	2014

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 25, 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 1940 Palmer Z-Index Rankings

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