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.

Idaho, Climate Division 2

December 1946 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1946 1-Month	2.10	-0.15	2.25	118th Driest	Driest since: 1945	1976
December 1946 1-Month	2.10	-0.15	2.25	13th Wettest	Wettest since: 1942	1964
Nov–Dec 1946 2-Month	2.02	0.02	2.00	114th Driest	Driest since: 1945	1936, 1976
Nov–Dec 1946 2-Month	2.02	0.02	2.00	17th Wettest	Wettest since: 1942	1927
Oct–Dec 1946 3-Month	2.08	-0.01	2.09	121st Driest	Driest since: 1945	1936
Oct–Dec 1946 3-Month	2.08	-0.01	2.09	10th Wettest	Wettest since: 1927	1927
Sep–Dec 1946 4-Month	1.83	-0.01	1.84	119th Driest	Driest since: 1945	1936
Sep–Dec 1946 4-Month	1.83	-0.01	1.84	12th Wettest	Wettest since: 1933	1927
Aug–Dec 1946 5-Month	1.41	-0.01	1.42	119th Driest	Driest since: 1945	1936
Aug–Dec 1946 5-Month	1.41	-0.01	1.42	12th Wettest	Wettest since: 1933	1927
Jul–Dec 1946 6-Month	1.46	0.01	1.45	122nd Driest	Driest since: 1945	1936
Jul–Dec 1946 6-Month	1.46	0.01	1.45	9th Wettest	Wettest since: 1927	1927
Jun–Dec 1946 7-Month	1.39	0.01	1.38	121st Driest	Driest since: 1945	1936
Jun–Dec 1946 7-Month	1.39	0.01	1.38	10th Wettest	Wettest since: 1941	1995
May–Dec 1946 8-Month	1.07	0.02	1.05	113th Driest	Driest since: 1945	1936
May–Dec 1946 8-Month	1.07	0.02	1.05	18th Wettest	Wettest since: 1942	1927
Apr–Dec 1946 9-Month	0.89	0.02	0.87	112th Driest	Driest since: 1945	1936
Apr–Dec 1946 9-Month	0.89	0.02	0.87	19th Wettest	Wettest since: 1942	1927
Mar–Dec 1946 10-Month	0.68	0.01	0.67	108th Driest	Driest since: 1945	1936
Mar–Dec 1946 10-Month	0.68	0.01	0.67	23rd Wettest	Wettest since: 1942	1948
Feb–Dec 1946 11-Month	0.63	0.01	0.62	110th Driest	Driest since: 1945	1936
Feb–Dec 1946 11-Month	0.63	0.01	0.62	21st Wettest	Wettest since: 1942	1927
Jan–Dec 1946 12-Month	0.57	0.02	0.55	110th Driest	Driest since: 1945	1987
Jan–Dec 1946 12-Month	0.57	0.02	0.55	21st Wettest	Wettest since: 1927	1927
Jul 1945–Dec 1946 18-Month	0.39	0.02	0.37	95th Driest	Driest since: 1945	1936
Jul 1945–Dec 1946 18-Month	0.39	0.02	0.37	35th Wettest	Wettest since: 1942	1927
Jan 1945–Dec 1946 24-Month	0.37	0.02	0.35	97th Driest	Driest since: 1945	1936
Jan 1945–Dec 1946 24-Month	0.37	0.02	0.35	33rd Wettest	Wettest since: 1942	1996
Jan 1944–Dec 1946 36-Month	-0.16	0.02	-0.18	49th Driest	Driest since: 1945	1936
Jan 1944–Dec 1946 36-Month	-0.16	0.02	-0.18	80th Wettest	Wettest since: 1943	1997
Jan 1943–Dec 1946 48-Month	-0.18	0.02	-0.20	47th Driest	Driest since: 1945	1937
Jan 1943–Dec 1946 48-Month	-0.18	0.02	-0.20	81st Wettest	Wettest since: 1944	1998
Jan 1942–Dec 1946 60-Month	-0.05	0.02	-0.07	60th Driest	Driest since: 1945	1938
	-0.05	0.02	-0.07	67th Wettest	Wettest since: 1927	1999
	Ties: 1908

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

Idaho, Climate Division 2

December 1946 Palmer Z-Index Rankings

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