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 1996 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1996 1-Month	4.32	-0.20	4.52	129th Driest	Driest since: 1995	2013
December 1996 1-Month	4.32	-0.20	4.52	2nd Wettest	Wettest to Date	2015
Nov–Dec 1996 2-Month	2.66	-0.04	2.70	126th Driest	Driest since: 1995	2013
Nov–Dec 1996 2-Month	2.66	-0.04	2.70	5th Wettest	Wettest since: 1973	1973
Oct–Dec 1996 3-Month	2.30	-0.11	2.41	129th Driest	Driest since: 1995	2013
Oct–Dec 1996 3-Month	2.30	-0.11	2.41	2nd Wettest	Wettest to Date	2016
Sep–Dec 1996 4-Month	1.84	-0.05	1.89	127th Driest	Driest since: 1995	1976
Sep–Dec 1996 4-Month	1.84	-0.05	1.89	4th Wettest	Wettest since: 1973	1973
Aug–Dec 1996 5-Month	1.20	-0.07	1.27	122nd Driest	Driest since: 1995	1936
Aug–Dec 1996 5-Month	1.20	-0.07	1.27	9th Wettest	Wettest since: 1977	1968
Jul–Dec 1996 6-Month	0.99	-0.07	1.06	119th Driest	Driest since: 1995	2018
	0.99	-0.07	1.06	12th Wettest	Wettest since: 1983	1920
	Ties: 1981
Jun–Dec 1996 7-Month	0.68	-0.06	0.74	115th Driest	Driest since: 1995	2018
	0.68	-0.06	0.74	16th Wettest	Wettest since: 1983	1920
	Ties: 1942
May–Dec 1996 8-Month	0.93	-0.05	0.98	119th Driest	Driest since: 1995	2018
May–Dec 1996 8-Month	0.93	-0.05	0.98	12th Wettest	Wettest since: 1983	1968
Apr–Dec 1996 9-Month	1.36	-0.03	1.39	127th Driest	Driest since: 1995	1938
Apr–Dec 1996 9-Month	1.36	-0.03	1.39	4th Wettest	Wettest since: 1937	1937
Mar–Dec 1996 10-Month	0.97	-0.05	1.02	121st Driest	Driest since: 1995	1992
Mar–Dec 1996 10-Month	0.97	-0.05	1.02	10th Wettest	Wettest since: 1983	1920, 1937
Feb–Dec 1996 11-Month	1.28	-0.04	1.32	128th Driest	Driest since: 1995	2018
Feb–Dec 1996 11-Month	1.28	-0.04	1.32	3rd Wettest	Wettest since: 1983	1983
Jan–Dec 1996 12-Month	1.30	-0.04	1.34	129th Driest	Driest since: 1995	1992
Jan–Dec 1996 12-Month	1.30	-0.04	1.34	2nd Wettest	Wettest since: 1983	1983
Jul 1995–Dec 1996 18-Month	1.02	-0.04	1.06	129th Driest	Driest since: 1995	1992
	1.02	-0.04	1.06	1st Wettest	Wettest since: 1983	1983, 1996
	Ties: 1983
Jan 1995–Dec 1996 24-Month	0.94	-0.04	0.98	127th Driest	Driest since: 1995	1930
Jan 1995–Dec 1996 24-Month	0.94	-0.04	0.98	3rd Wettest	Wettest since: 1984	1984
Jan 1994–Dec 1996 36-Month	0.47	-0.03	0.50	122nd Driest	Driest since: 1995	1930
Jan 1994–Dec 1996 36-Month	0.47	-0.03	0.50	7th Wettest	Wettest since: 1984	1997
Jan 1993–Dec 1996 48-Month	0.42	-0.04	0.46	120th Driest	Driest since: 1995	1926
	0.42	-0.04	0.46	8th Wettest	Wettest since: 1984	1998
	Ties: 1974
Jan 1992–Dec 1996 60-Month	0.07	-0.04	0.11	87th Driest	Driest since: 1995	1926, 1932
Jan 1992–Dec 1996 60-Month	0.07	-0.04	0.11	40th Wettest	Wettest since: 1987	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 1996 Palmer Z-Index Rankings

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