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

November 1929 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 1929 1-Month	-2.21	0.11	-2.32	14th Driest	Driest since: 1922	1933
November 1929 1-Month	-2.21	0.11	-2.32	117th Wettest	Wettest since: 1928	2006
Oct–Nov 1929 2-Month	-2.45	-0.06	-2.39	3rd Driest	Driest to Date	1936
Oct–Nov 1929 2-Month	-2.45	-0.06	-2.39	128th Wettest	Wettest since: 1928	2016
Sep–Nov 1929 3-Month	-2.41	0.00	-2.41	2nd Driest	Driest to Date	1936
Sep–Nov 1929 3-Month	-2.41	0.00	-2.41	129th Wettest	Wettest since: 1928	1973
Aug–Nov 1929 4-Month	-2.08	-0.04	-2.04	2nd Driest	Driest to Date	1936
Aug–Nov 1929 4-Month	-2.08	-0.04	-2.04	129th Wettest	Wettest since: 1928	1920
Jul–Nov 1929 5-Month	-1.75	-0.04	-1.71	2nd Driest	Driest to Date	2018
Jul–Nov 1929 5-Month	-1.75	-0.04	-1.71	129th Wettest	Wettest since: 1928	1920
Jun–Nov 1929 6-Month	-1.22	-0.04	-1.18	12th Driest	Driest since: 1928	2018
Jun–Nov 1929 6-Month	-1.22	-0.04	-1.18	119th Wettest	Wettest since: 1927	1920
May–Nov 1929 7-Month	-1.32	-0.03	-1.29	11th Driest	Driest since: 1928	2018
May–Nov 1929 7-Month	-1.32	-0.03	-1.29	120th Wettest	Wettest since: 1927	1920
Apr–Nov 1929 8-Month	-0.85	0.00	-0.85	18th Driest	Driest since: 1928	2015
Apr–Nov 1929 8-Month	-0.85	0.00	-0.85	113th Wettest	Wettest since: 1927	1937
Mar–Nov 1929 9-Month	-1.02	-0.04	-0.98	14th Driest	Driest since: 1918	2015
Mar–Nov 1929 9-Month	-1.02	-0.04	-0.98	117th Wettest	Wettest since: 1928	1983
Feb–Nov 1929 10-Month	-1.30	-0.03	-1.27	4th Driest	Driest to Date	2015
Feb–Nov 1929 10-Month	-1.30	-0.03	-1.27	127th Wettest	Wettest since: 1928	1983
Jan–Nov 1929 11-Month	-1.31	-0.03	-1.28	4th Driest	Driest to Date	2015
Jan–Nov 1929 11-Month	-1.31	-0.03	-1.28	127th Wettest	Wettest since: 1928	1983
Dec 1928–Nov 1929 12-Month	-1.25	-0.04	-1.21	4th Driest	Driest to Date	1992
Dec 1928–Nov 1929 12-Month	-1.25	-0.04	-1.21	126th Wettest	Wettest since: 1928	1983
Jun 1928–Nov 1929 18-Month	-1.28	-0.03	-1.25	3rd Driest	Driest to Date	1939
Jun 1928–Nov 1929 18-Month	-1.28	-0.03	-1.25	127th Wettest	Wettest since: 1928	1948
Dec 1927–Nov 1929 24-Month	-1.05	-0.04	-1.01	1st Driest	Driest to Date	1929
Dec 1927–Nov 1929 24-Month	-1.05	-0.04	-1.01	128th Wettest	Wettest since: 1928	1984
Dec 1926–Nov 1929 36-Month	-0.63	-0.03	-0.60	12th Driest	Driest since: 1926	1930
Dec 1926–Nov 1929 36-Month	-0.63	-0.03	-0.60	116th Wettest	Wettest since: 1928	1984, 1997
Dec 1925–Nov 1929 48-Month	-0.61	-0.03	-0.58	10th Driest	Driest since: 1926	2021
Dec 1925–Nov 1929 48-Month	-0.61	-0.03	-0.58	117th Wettest	Wettest since: 1928	1984
Dec 1924–Nov 1929 60-Month	-0.62	-0.04	-0.58	4th Driest	Driest since: 1926	1932
Dec 1924–Nov 1929 60-Month	-0.62	-0.04	-0.58	122nd Wettest	Wettest since: 1928	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 1, 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

November 1929 Palmer Z-Index Rankings

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