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 2010 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 2010 1-Month	1.70	-0.15	1.85	112th Driest	Driest since: 2009	1976
December 2010 1-Month	1.70	-0.15	1.85	19th Wettest	Wettest since: 1998	1964
Nov–Dec 2010 2-Month	0.83	0.02	0.81	93rd Driest	Driest since: 2009	1936, 1976
Nov–Dec 2010 2-Month	0.83	0.02	0.81	38th Wettest	Wettest since: 2006	1927
Oct–Dec 2010 3-Month	0.68	-0.01	0.69	91st Driest	Driest since: 2009	1936
	0.68	-0.01	0.69	40th Wettest	Wettest since: 1998	1927
	Ties: 1924
Sep–Dec 2010 4-Month	0.57	-0.01	0.58	91st Driest	Driest since: 2009	1936
Sep–Dec 2010 4-Month	0.57	-0.01	0.58	40th Wettest	Wettest since: 1998	1927
Aug–Dec 2010 5-Month	0.50	-0.01	0.51	92nd Driest	Driest since: 2009	1936
Aug–Dec 2010 5-Month	0.50	-0.01	0.51	39th Wettest	Wettest since: 1998	1927
Jul–Dec 2010 6-Month	0.45	0.01	0.44	91st Driest	Driest since: 2009	1936
Jul–Dec 2010 6-Month	0.45	0.01	0.44	40th Wettest	Wettest since: 1998	1927
Jun–Dec 2010 7-Month	1.06	0.01	1.05	109th Driest	Driest since: 2009	1936
Jun–Dec 2010 7-Month	1.06	0.01	1.05	22nd Wettest	Wettest since: 1995	1995
May–Dec 2010 8-Month	1.10	0.02	1.08	115th Driest	Driest since: 2009	1936
May–Dec 2010 8-Month	1.10	0.02	1.08	16th Wettest	Wettest since: 1998	1927
Apr–Dec 2010 9-Month	1.12	0.02	1.10	121st Driest	Driest since: 2009	1936
Apr–Dec 2010 9-Month	1.12	0.02	1.10	10th Wettest	Wettest since: 1995	1927
Mar–Dec 2010 10-Month	0.84	0.01	0.83	112th Driest	Driest since: 2009	1936
Mar–Dec 2010 10-Month	0.84	0.01	0.83	19th Wettest	Wettest since: 1995	1948
Feb–Dec 2010 11-Month	0.51	0.01	0.50	101st Driest	Driest since: 2009	1936
	0.51	0.01	0.50	30th Wettest	Wettest since: 1997	1927
	Ties: 1906, 1920
Jan–Dec 2010 12-Month	0.38	0.02	0.36	93rd Driest	Driest since: 2009	1987
Jan–Dec 2010 12-Month	0.38	0.02	0.36	38th Wettest	Wettest since: 1998	1927
Jul 2009–Dec 2010 18-Month	-0.01	0.02	-0.03	69th Driest	Driest since: 2009	1936
	-0.01	0.02	-0.03	61st Wettest	Wettest since: 1999	1927
	Ties: 1962
Jan 2009–Dec 2010 24-Month	0.02	0.02	0.00	70th Driest	Driest since: 2009	1936
Jan 2009–Dec 2010 24-Month	0.02	0.02	0.00	60th Wettest	Wettest since: 1999	1996
Jan 2008–Dec 2010 36-Month	-0.03	0.02	-0.05	61st Driest	Driest since: 2009	1936
	-0.03	0.02	-0.05	68th Wettest	Wettest since: 2000	1997
	Ties: 1908
Jan 2007–Dec 2010 48-Month	-0.31	0.02	-0.33	29th Driest	Driest since: 2009	1937
Jan 2007–Dec 2010 48-Month	-0.31	0.02	-0.33	99th Wettest	Wettest since: 2006	1998
Jan 2006–Dec 2010 60-Month	-0.27	0.02	-0.29	32nd Driest	Driest since: 2009	1938
	-0.27	0.02	-0.29	95th Wettest	Wettest since: 2002	1999
	Ties: 1993

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 2010 Palmer Z-Index Rankings

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