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.

Wisconsin, Climate Division 4

December 1939 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1939 1-Month	-1.67	0.03	-1.70	11th Driest	Driest since: 1933	1976
December 1939 1-Month	-1.67	0.03	-1.70	120th Wettest	Wettest since: 1938	2015
Nov–Dec 1939 2-Month	-2.46	0.07	-2.53	3rd Driest	Driest since: 1910	1976
Nov–Dec 1939 2-Month	-2.46	0.07	-2.53	128th Wettest	Wettest since: 1938	1991
Oct–Dec 1939 3-Month	-2.17	0.10	-2.27	4th Driest	Driest since: 1910	1976
Oct–Dec 1939 3-Month	-2.17	0.10	-2.27	127th Wettest	Wettest since: 1938	1911
Sep–Dec 1939 4-Month	-2.12	0.10	-2.22	4th Driest	Driest since: 1910	1976
Sep–Dec 1939 4-Month	-2.12	0.10	-2.22	127th Wettest	Wettest since: 1938	1911
Aug–Dec 1939 5-Month	-1.56	0.08	-1.64	11th Driest	Driest since: 1936	1976
Aug–Dec 1939 5-Month	-1.56	0.08	-1.64	120th Wettest	Wettest since: 1938	1911
Jul–Dec 1939 6-Month	-1.68	0.11	-1.79	9th Driest	Driest since: 1936	1976
Jul–Dec 1939 6-Month	-1.68	0.11	-1.79	122nd Wettest	Wettest since: 1938	1900
Jun–Dec 1939 7-Month	-1.39	0.12	-1.51	10th Driest	Driest since: 1937	1976
Jun–Dec 1939 7-Month	-1.39	0.12	-1.51	121st Wettest	Wettest since: 1938	2010
May–Dec 1939 8-Month	-1.58	0.13	-1.71	7th Driest	Driest since: 1936	1976
May–Dec 1939 8-Month	-1.58	0.13	-1.71	124th Wettest	Wettest since: 1938	2019
Apr–Dec 1939 9-Month	-1.39	0.12	-1.51	8th Driest	Driest since: 1936	1910
Apr–Dec 1939 9-Month	-1.39	0.12	-1.51	123rd Wettest	Wettest since: 1938	2019
Mar–Dec 1939 10-Month	-1.40	0.12	-1.52	7th Driest	Driest since: 1936	1910
Mar–Dec 1939 10-Month	-1.40	0.12	-1.52	124th Wettest	Wettest since: 1938	2019
Feb–Dec 1939 11-Month	-1.14	0.12	-1.26	11th Driest	Driest since: 1937	1910
Feb–Dec 1939 11-Month	-1.14	0.12	-1.26	120th Wettest	Wettest since: 1938	2019
Jan–Dec 1939 12-Month	-0.97	0.13	-1.10	12th Driest	Driest since: 1937	1910
Jan–Dec 1939 12-Month	-0.97	0.13	-1.10	119th Wettest	Wettest since: 1938	2019
Jul 1938–Dec 1939 18-Month	-0.15	0.13	-0.28	38th Driest	Driest since: 1937	1910
Jul 1938–Dec 1939 18-Month	-0.15	0.13	-0.28	92nd Wettest	Wettest since: 1938	2019
Jan 1938–Dec 1939 24-Month	0.30	0.13	0.17	65th Driest	Driest since: 1938	1949
Jan 1938–Dec 1939 24-Month	0.30	0.13	0.17	65th Wettest	Wettest since: 1929	2019
Jan 1937–Dec 1939 36-Month	-0.17	0.14	-0.31	30th Driest	Driest since: 1938	1950
Jan 1937–Dec 1939 36-Month	-0.17	0.14	-0.31	99th Wettest	Wettest since: 1930	2019
Jan 1936–Dec 1939 48-Month	-0.46	0.13	-0.59	10th Driest	Driest since: 1937	1934
	-0.46	0.13	-0.59	118th Wettest	Wettest since: 1938	2019
	Ties: 1911, 1935
Jan 1935–Dec 1939 60-Month	-0.23	0.13	-0.36	22nd Driest	Driest since: 1938	1934
Jan 1935–Dec 1939 60-Month	-0.23	0.13	-0.36	105th Wettest	Wettest since: 1931	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Wisconsin, Climate Division 4

December 1939 Palmer Z-Index Rankings

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