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 1976 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1976 1-Month	-2.62	-0.20	-2.42	5th Driest	Driest since: 1944	2013
December 1976 1-Month	-2.62	-0.20	-2.42	126th Wettest	Wettest since: 1975	2015
Nov–Dec 1976 2-Month	-2.40	-0.04	-2.36	4th Driest	Driest since: 1959	2013
	-2.40	-0.04	-2.36	127th Wettest	Wettest since: 1975	1973
	Ties: 1959
Oct–Dec 1976 3-Month	-2.35	-0.11	-2.24	2nd Driest	Driest to Date	2013
Oct–Dec 1976 3-Month	-2.35	-0.11	-2.24	129th Wettest	Wettest since: 1975	2016
Sep–Dec 1976 4-Month	-2.12	-0.05	-2.07	1st Driest	Driest to Date	1976
Sep–Dec 1976 4-Month	-2.12	-0.05	-2.07	130th Wettest	Wettest since: 1975	1973
Aug–Dec 1976 5-Month	-1.26	-0.07	-1.19	5th Driest	Driest since: 1936	1936
Aug–Dec 1976 5-Month	-1.26	-0.07	-1.19	126th Wettest	Wettest since: 1975	1968
Jul–Dec 1976 6-Month	-0.96	-0.07	-0.89	15th Driest	Driest since: 1967	2018
	-0.96	-0.07	-0.89	116th Wettest	Wettest since: 1975	1920
	Ties: 1944
Jun–Dec 1976 7-Month	-1.02	-0.06	-0.96	11th Driest	Driest since: 1967	2018
Jun–Dec 1976 7-Month	-1.02	-0.06	-0.96	120th Wettest	Wettest since: 1975	1920
May–Dec 1976 8-Month	-1.09	-0.05	-1.04	10th Driest	Driest since: 1967	2018
May–Dec 1976 8-Month	-1.09	-0.05	-1.04	121st Wettest	Wettest since: 1975	1968
Apr–Dec 1976 9-Month	-1.05	-0.03	-1.02	6th Driest	Driest since: 1952	1938
	-1.05	-0.03	-1.02	125th Wettest	Wettest since: 1975	1937
	Ties: 1952
Mar–Dec 1976 10-Month	-1.02	-0.05	-0.97	8th Driest	Driest since: 1939	1992
Mar–Dec 1976 10-Month	-1.02	-0.05	-0.97	123rd Wettest	Wettest since: 1975	1920, 1937
Feb–Dec 1976 11-Month	-0.87	-0.04	-0.83	13th Driest	Driest since: 1967	2018
	-0.87	-0.04	-0.83	118th Wettest	Wettest since: 1975	1983
	Ties: 1952, 1967
Jan–Dec 1976 12-Month	-0.81	-0.04	-0.77	17th Driest	Driest since: 1965	1992
Jan–Dec 1976 12-Month	-0.81	-0.04	-0.77	114th Wettest	Wettest since: 1975	1983
Jul 1975–Dec 1976 18-Month	-0.40	-0.04	-0.36	40th Driest	Driest since: 1967	1992
Jul 1975–Dec 1976 18-Month	-0.40	-0.04	-0.36	90th Wettest	Wettest since: 1975	1983, 1996
Jan 1975–Dec 1976 24-Month	-0.19	-0.04	-0.15	54th Driest	Driest since: 1970	1930
	-0.19	-0.04	-0.15	76th Wettest	Wettest since: 1975	1984
	Ties: 1970
Jan 1974–Dec 1976 36-Month	0.00	-0.03	0.03	74th Driest	Driest since: 1968	1930
	0.00	-0.03	0.03	55th Wettest	Wettest since: 1975	1997
	Ties: 1907
Jan 1973–Dec 1976 48-Month	0.03	-0.04	0.07	80th Driest	Driest since: 1970	1926
Jan 1973–Dec 1976 48-Month	0.03	-0.04	0.07	48th Wettest	Wettest since: 1975	1998
Jan 1972–Dec 1976 60-Month	0.04	-0.04	0.08	81st Driest	Driest since: 1970	1926, 1932
Jan 1972–Dec 1976 60-Month	0.04	-0.04	0.08	46th Wettest	Wettest since: 1975	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 26, 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 1976 Palmer Z-Index Rankings

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