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 1950 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1950 1-Month	0.55	-0.15	0.70	88th Driest	Driest since: 1949	1976
December 1950 1-Month	0.55	-0.15	0.70	43rd Wettest	Wettest since: 1948	1964
Nov–Dec 1950 2-Month	1.29	0.02	1.27	103rd Driest	Driest since: 1949	1936, 1976
Nov–Dec 1950 2-Month	1.29	0.02	1.27	28th Wettest	Wettest since: 1948	1927
Oct–Dec 1950 3-Month	1.79	-0.01	1.80	114th Driest	Driest since: 1949	1936
Oct–Dec 1950 3-Month	1.79	-0.01	1.80	17th Wettest	Wettest since: 1947	1927
Sep–Dec 1950 4-Month	1.31	-0.01	1.32	112th Driest	Driest since: 1949	1936
Sep–Dec 1950 4-Month	1.31	-0.01	1.32	19th Wettest	Wettest since: 1947	1927
Aug–Dec 1950 5-Month	1.23	-0.01	1.24	115th Driest	Driest since: 1949	1936
Aug–Dec 1950 5-Month	1.23	-0.01	1.24	16th Wettest	Wettest since: 1947	1927
Jul–Dec 1950 6-Month	1.27	0.01	1.26	117th Driest	Driest since: 1949	1936
Jul–Dec 1950 6-Month	1.27	0.01	1.26	14th Wettest	Wettest since: 1948	1927
Jun–Dec 1950 7-Month	1.54	0.01	1.53	123rd Driest	Driest since: 1949	1936
Jun–Dec 1950 7-Month	1.54	0.01	1.53	8th Wettest	Wettest since: 1927	1995
May–Dec 1950 8-Month	1.26	0.02	1.24	120th Driest	Driest since: 1949	1936
May–Dec 1950 8-Month	1.26	0.02	1.24	11th Wettest	Wettest since: 1948	1927
Apr–Dec 1950 9-Month	1.07	0.02	1.05	119th Driest	Driest since: 1949	1936
Apr–Dec 1950 9-Month	1.07	0.02	1.05	12th Wettest	Wettest since: 1948	1927
Mar–Dec 1950 10-Month	1.09	0.01	1.08	122nd Driest	Driest since: 1949	1936
Mar–Dec 1950 10-Month	1.09	0.01	1.08	9th Wettest	Wettest since: 1948	1948
Feb–Dec 1950 11-Month	1.19	0.01	1.18	123rd Driest	Driest since: 1949	1936
Feb–Dec 1950 11-Month	1.19	0.01	1.18	8th Wettest	Wettest since: 1948	1927
Jan–Dec 1950 12-Month	1.24	0.02	1.22	125th Driest	Driest since: 1949	1987
Jan–Dec 1950 12-Month	1.24	0.02	1.22	6th Wettest	Wettest since: 1948	1927
Jul 1949–Dec 1950 18-Month	0.57	0.02	0.55	109th Driest	Driest since: 1949	1936
Jul 1949–Dec 1950 18-Month	0.57	0.02	0.55	21st Wettest	Wettest since: 1948	1927
Jan 1949–Dec 1950 24-Month	0.14	0.02	0.12	79th Driest	Driest since: 1945	1936
	0.14	0.02	0.12	51st Wettest	Wettest since: 1949	1996
	Ties: 1907
Jan 1948–Dec 1950 36-Month	0.70	0.02	0.68	125th Driest	Driest since: 1949	1936
Jan 1948–Dec 1950 36-Month	0.70	0.02	0.68	4th Wettest	Wettest since: 1948	1997
Jan 1947–Dec 1950 48-Month	0.59	0.02	0.57	124th Driest	Driest since: 1949	1937
Jan 1947–Dec 1950 48-Month	0.59	0.02	0.57	4th Wettest	Wettest since: 1948	1998
Jan 1946–Dec 1950 60-Month	0.59	0.02	0.57	124th Driest	Driest since: 1949	1938
Jan 1946–Dec 1950 60-Month	0.59	0.02	0.57	3rd Wettest	Wettest to Date	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 1950 Palmer Z-Index Rankings

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