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.

Oregon, Climate Division 1

December 1960 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1960 1-Month	-2.49	-0.20	-2.29	8th Driest	Driest since: 1944	2013
December 1960 1-Month	-2.49	-0.20	-2.29	123rd Wettest	Wettest since: 1959	2015
Nov–Dec 1960 2-Month	-0.03	-0.04	0.01	64th Driest	Driest since: 1959	2013
Nov–Dec 1960 2-Month	-0.03	-0.04	0.01	67th Wettest	Wettest since: 1958	1973
Oct–Dec 1960 3-Month	-0.07	-0.11	0.04	72nd Driest	Driest since: 1959	2013
Oct–Dec 1960 3-Month	-0.07	-0.11	0.04	59th Wettest	Wettest since: 1955	2016
Sep–Dec 1960 4-Month	-0.54	-0.05	-0.49	36th Driest	Driest since: 1952	1976
Sep–Dec 1960 4-Month	-0.54	-0.05	-0.49	95th Wettest	Wettest since: 1959	1973
Aug–Dec 1960 5-Month	-0.34	-0.07	-0.27	55th Driest	Driest since: 1959	1936
Aug–Dec 1960 5-Month	-0.34	-0.07	-0.27	76th Wettest	Wettest since: 1957	1968
Jul–Dec 1960 6-Month	-0.57	-0.07	-0.50	36th Driest	Driest since: 1958	2018
	-0.57	-0.07	-0.50	95th Wettest	Wettest since: 1959	1920
	Ties: 1905, 1917
Jun–Dec 1960 7-Month	-0.74	-0.06	-0.68	26th Driest	Driest since: 1952	2018
Jun–Dec 1960 7-Month	-0.74	-0.06	-0.68	105th Wettest	Wettest since: 1959	1920
May–Dec 1960 8-Month	-0.06	-0.05	-0.01	72nd Driest	Driest since: 1959	2018
May–Dec 1960 8-Month	-0.06	-0.05	-0.01	59th Wettest	Wettest since: 1955	1968
Apr–Dec 1960 9-Month	0.11	-0.03	0.14	84th Driest	Driest since: 1959	1938
Apr–Dec 1960 9-Month	0.11	-0.03	0.14	47th Wettest	Wettest since: 1955	1937
Mar–Dec 1960 10-Month	0.27	-0.05	0.32	95th Driest	Driest since: 1959	1992
	0.27	-0.05	0.32	36th Wettest	Wettest since: 1955	1920, 1937
	Ties: 1906
Feb–Dec 1960 11-Month	0.34	-0.04	0.38	99th Driest	Driest since: 1959	2018
Feb–Dec 1960 11-Month	0.34	-0.04	0.38	32nd Wettest	Wettest since: 1955	1983
Jan–Dec 1960 12-Month	0.23	-0.04	0.27	91st Driest	Driest since: 1959	1992
Jan–Dec 1960 12-Month	0.23	-0.04	0.27	40th Wettest	Wettest since: 1955	1983
Jul 1959–Dec 1960 18-Month	0.08	-0.04	0.12	81st Driest	Driest since: 1959	1992
Jul 1959–Dec 1960 18-Month	0.08	-0.04	0.12	49th Wettest	Wettest since: 1956	1983, 1996
Jan 1959–Dec 1960 24-Month	0.09	-0.04	0.13	82nd Driest	Driest since: 1959	1930
Jan 1959–Dec 1960 24-Month	0.09	-0.04	0.13	48th Wettest	Wettest since: 1956	1984
Jan 1958–Dec 1960 36-Month	-0.01	-0.03	0.02	72nd Driest	Driest since: 1959	1930
	-0.01	-0.03	0.02	57th Wettest	Wettest since: 1957	1997
	Ties: 1915, 1943
Jan 1957–Dec 1960 48-Month	-0.04	-0.04	0.00	75th Driest	Driest since: 1959	1926
Jan 1957–Dec 1960 48-Month	-0.04	-0.04	0.00	53rd Wettest	Wettest since: 1958	1998
Jan 1956–Dec 1960 60-Month	-0.03	-0.04	0.01	69th Driest	Driest since: 1947	1926, 1932
	-0.03	-0.04	0.01	58th Wettest	Wettest since: 1959	1999
	Ties: 1913, 1919, 1921

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Oregon, Climate Division 1

December 1960 Palmer Z-Index Rankings

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