Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. 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 9. Southeast

Precipitation Rankings, April 1931

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
April 1931 1-Month	0.48" (12.19mm)	1.10" (27.94mm)	-0.62" (-15.75mm)	20th Driest	Driest since: 1924	1961
	0.48" (12.19mm)	1.10" (27.94mm)	-0.62" (-15.75mm)	110th Wettest	Wettest since: 1930	1978
	Ties: 1916
Mar–Apr 1931 2-Month	2.06" (52.32mm)	2.31" (58.67mm)	-0.25" (-6.35mm)	59th Driest	Driest since: 1930	1898
	2.06" (52.32mm)	2.31" (58.67mm)	-0.25" (-6.35mm)	71st Wettest	Wettest since: 1929	1904
	Ties: 1918, 1952
Feb–Apr 1931 3-Month	3.01" (76.45mm)	3.62" (91.95mm)	-0.61" (-15.50mm)	48th Driest	Driest since: 1924	1898
	3.01" (76.45mm)	3.62" (91.95mm)	-0.61" (-15.50mm)	82nd Wettest	Wettest since: 1930	1904
	Ties: 2021
Jan–Apr 1931 4-Month	4.14" (105.16mm)	5.19" (131.83mm)	-1.05" (-26.67mm)	38th Driest	Driest since: 1924	1908
Jan–Apr 1931 4-Month	4.14" (105.16mm)	5.19" (131.83mm)	-1.05" (-26.67mm)	92nd Wettest	Wettest since: 1930	1978
Dec 1930–Apr 1931 5-Month	4.28" (108.71mm)	6.66" (169.16mm)	-2.38" (-60.45mm)	12th Driest	Driest since: 1924	1977
Dec 1930–Apr 1931 5-Month	4.28" (108.71mm)	6.66" (169.16mm)	-2.38" (-60.45mm)	117th Wettest	Wettest since: 1930	1978
Nov 1930–Apr 1931 6-Month	5.26" (133.60mm)	7.96" (202.18mm)	-2.70" (-68.58mm)	11th Driest	Driest since: 1924	1977
Nov 1930–Apr 1931 6-Month	5.26" (133.60mm)	7.96" (202.18mm)	-2.70" (-68.58mm)	118th Wettest	Wettest since: 1930	1978
Oct 1930–Apr 1931 7-Month	5.93" (150.62mm)	8.85" (224.79mm)	-2.92" (-74.17mm)	9th Driest	Driest since: 1908	1977
Oct 1930–Apr 1931 7-Month	5.93" (150.62mm)	8.85" (224.79mm)	-2.92" (-74.17mm)	120th Wettest	Wettest since: 1930	1983
Sep 1930–Apr 1931 8-Month	6.54" (166.12mm)	9.43" (239.52mm)	-2.89" (-73.40mm)	15th Driest	Driest since: 1908	1977
	6.54" (166.12mm)	9.43" (239.52mm)	-2.89" (-73.40mm)	114th Wettest	Wettest since: 1930	1983
	Ties: 1898
Aug 1930–Apr 1931 9-Month	7.01" (178.05mm)	9.81" (249.17mm)	-2.80" (-71.12mm)	18th Driest	Driest since: 1930	1977
Aug 1930–Apr 1931 9-Month	7.01" (178.05mm)	9.81" (249.17mm)	-2.80" (-71.12mm)	111th Wettest	Wettest since: 1929	1978
Jul 1930–Apr 1931 10-Month	7.02" (178.31mm)	10.17" (258.32mm)	-3.15" (-80.01mm)	11th Driest	Driest since: 1930	2013
	7.02" (178.31mm)	10.17" (258.32mm)	-3.15" (-80.01mm)	118th Wettest	Wettest since: 1929	1983
	Ties: 2021
Jun 1930–Apr 1931 11-Month	7.46" (189.48mm)	11.29" (286.77mm)	-3.83" (-97.29mm)	3rd Driest	Driest to Date	2013
Jun 1930–Apr 1931 11-Month	7.46" (189.48mm)	11.29" (286.77mm)	-3.83" (-97.29mm)	126th Wettest	Wettest since: 1930	1983
May 1930–Apr 1931 12-Month	9.14" (232.16mm)	12.56" (319.02mm)	-3.42" (-86.86mm)	10th Driest	Driest since: 1930	2013
May 1930–Apr 1931 12-Month	9.14" (232.16mm)	12.56" (319.02mm)	-3.42" (-86.86mm)	119th Wettest	Wettest since: 1928	1983
Nov 1929–Apr 1931 18-Month	15.60" (396.24mm)	20.52" (521.21mm)	-4.92" (-124.97mm)	11th Driest	Driest since: 1930	1934
Nov 1929–Apr 1931 18-Month	15.60" (396.24mm)	20.52" (521.21mm)	-4.92" (-124.97mm)	117th Wettest	Wettest since: 1929	1983
May 1929–Apr 1931 24-Month	17.91" (454.91mm)	25.15" (638.81mm)	-7.24" (-183.90mm)	2nd Driest	Driest since: 1930	1930
May 1929–Apr 1931 24-Month	17.91" (454.91mm)	25.15" (638.81mm)	-7.24" (-183.90mm)	126th Wettest	Wettest since: 1929	1984
May 1928–Apr 1931 36-Month	25.62" (650.75mm)	37.68" (957.07mm)	-12.06" (-306.32mm)	1st Driest	Driest to Date	1931
May 1928–Apr 1931 36-Month	25.62" (650.75mm)	37.68" (957.07mm)	-12.06" (-306.32mm)	126th Wettest	Wettest since: 1930	1984
May 1927–Apr 1931 48-Month	38.46" (976.88mm)	50.16" (1,274.06mm)	-11.70" (-297.18mm)	4th Driest	Driest to Date	1932
May 1927–Apr 1931 48-Month	38.46" (976.88mm)	50.16" (1,274.06mm)	-11.70" (-297.18mm)	122nd Wettest	Wettest since: 1930	1984
May 1926–Apr 1931 60-Month	50.64" (1,286.26mm)	62.65" (1,591.31mm)	-12.01" (-305.05mm)	7th Driest	Driest to Date	1933
May 1926–Apr 1931 60-Month	50.64" (1,286.26mm)	62.65" (1,591.31mm)	-12.01" (-305.05mm)	118th Wettest	Wettest since: 1930	1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings