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 1902 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1902 1-Month	1.58	-0.15	1.73	109th Driest	Driest since: 1901	1976
December 1902 1-Month	1.58	-0.15	1.73	22nd Wettest	Wettest to Date	1964
Nov–Dec 1902 2-Month	2.19	0.02	2.17	116th Driest	Driest since: 1901	1936, 1976
Nov–Dec 1902 2-Month	2.19	0.02	2.17	15th Wettest	Wettest to Date	1927
Oct–Dec 1902 3-Month	0.82	-0.01	0.83	94th Driest	Driest since: 1901	1936
Oct–Dec 1902 3-Month	0.82	-0.01	0.83	37th Wettest	Wettest since: 1900	1927
Sep–Dec 1902 4-Month	0.58	-0.01	0.59	92nd Driest	Driest since: 1901	1936
Sep–Dec 1902 4-Month	0.58	-0.01	0.59	39th Wettest	Wettest since: 1900	1927
Aug–Dec 1902 5-Month	0.64	-0.01	0.65	96th Driest	Driest since: 1901	1936
Aug–Dec 1902 5-Month	0.64	-0.01	0.65	35th Wettest	Wettest since: 1900	1927
Jul–Dec 1902 6-Month	1.02	0.01	1.01	111th Driest	Driest since: 1901	1936
Jul–Dec 1902 6-Month	1.02	0.01	1.01	20th Wettest	Wettest to Date	1927
Jun–Dec 1902 7-Month	0.62	0.01	0.61	98th Driest	Driest since: 1901	1936
Jun–Dec 1902 7-Month	0.62	0.01	0.61	33rd Wettest	Wettest since: 1897	1995
May–Dec 1902 8-Month	0.78	0.02	0.76	103rd Driest	Driest since: 1901	1936
May–Dec 1902 8-Month	0.78	0.02	0.76	28th Wettest	Wettest to Date	1927
Apr–Dec 1902 9-Month	0.62	0.02	0.60	96th Driest	Driest since: 1901	1936
Apr–Dec 1902 9-Month	0.62	0.02	0.60	35th Wettest	Wettest since: 1896	1927
Mar–Dec 1902 10-Month	0.39	0.01	0.38	88th Driest	Driest since: 1901	1936
Mar–Dec 1902 10-Month	0.39	0.01	0.38	43rd Wettest	Wettest since: 1899	1948
Feb–Dec 1902 11-Month	0.39	0.01	0.38	92nd Driest	Driest since: 1901	1936
Feb–Dec 1902 11-Month	0.39	0.01	0.38	39th Wettest	Wettest since: 1899	1927
Jan–Dec 1902 12-Month	0.29	0.02	0.27	88th Driest	Driest since: 1901	1987
Jan–Dec 1902 12-Month	0.29	0.02	0.27	43rd Wettest	Wettest since: 1899	1927
Jul 1901–Dec 1902 18-Month	-0.11	0.02	-0.13	65th Driest	Driest since: 1898	1936
Jul 1901–Dec 1902 18-Month	-0.11	0.02	-0.13	65th Wettest	Wettest since: 1901	1927
Jan 1901–Dec 1902 24-Month	0.03	0.02	0.01	71st Driest	Driest since: 1901	1936
Jan 1901–Dec 1902 24-Month	0.03	0.02	0.01	59th Wettest	Wettest since: 1900	1996
Jan 1900–Dec 1902 36-Month	-0.04	0.02	-0.06	59th Driest	Driest since: 1900	1936
Jan 1900–Dec 1902 36-Month	-0.04	0.02	-0.06	70th Wettest	Wettest since: 1901	1997
Jan 1899–Dec 1902 48-Month	0.11	0.02	0.09	78th Driest	Driest since: 1901	1937
Jan 1899–Dec 1902 48-Month	0.11	0.02	0.09	50th Wettest	Wettest since: 1899	1998
Jan 1898–Dec 1902 60-Month	-0.07	0.02	-0.09	56th Driest	Driest to Date	1938
Jan 1898–Dec 1902 60-Month	-0.07	0.02	-0.09	71st Wettest	Wettest since: 1901	1999

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 1902 Palmer Z-Index Rankings

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