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 1978

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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 1978 1-Month	3.50" (88.90mm)	1.10" (27.94mm)	2.40" (60.96mm)	129th Driest	Driest since: 1977	1961
April 1978 1-Month	3.50" (88.90mm)	1.10" (27.94mm)	2.40" (60.96mm)	1st Wettest	Wettest to Date	1978
Mar–Apr 1978 2-Month	4.84" (122.94mm)	2.31" (58.67mm)	2.53" (64.27mm)	127th Driest	Driest since: 1977	1898
Mar–Apr 1978 2-Month	4.84" (122.94mm)	2.31" (58.67mm)	2.53" (64.27mm)	3rd Wettest	Wettest since: 1904	1904
Feb–Apr 1978 3-Month	6.59" (167.39mm)	3.62" (91.95mm)	2.97" (75.44mm)	125th Driest	Driest since: 1977	1898
	6.59" (167.39mm)	3.62" (91.95mm)	2.97" (75.44mm)	5th Wettest	Wettest since: 1940	1904
	Ties: 1940
Jan–Apr 1978 4-Month	9.27" (235.46mm)	5.19" (131.83mm)	4.08" (103.63mm)	129th Driest	Driest since: 1977	1908
Jan–Apr 1978 4-Month	9.27" (235.46mm)	5.19" (131.83mm)	4.08" (103.63mm)	1st Wettest	Wettest to Date	1978
Dec 1977–Apr 1978 5-Month	11.69" (296.93mm)	6.66" (169.16mm)	5.03" (127.77mm)	128th Driest	Driest since: 1977	1977
Dec 1977–Apr 1978 5-Month	11.69" (296.93mm)	6.66" (169.16mm)	5.03" (127.77mm)	1st Wettest	Wettest to Date	1978
Nov 1977–Apr 1978 6-Month	13.73" (348.74mm)	7.96" (202.18mm)	5.77" (146.56mm)	128th Driest	Driest since: 1977	1977
Nov 1977–Apr 1978 6-Month	13.73" (348.74mm)	7.96" (202.18mm)	5.77" (146.56mm)	1st Wettest	Wettest to Date	1978
Oct 1977–Apr 1978 7-Month	13.93" (353.82mm)	8.85" (224.79mm)	5.08" (129.03mm)	126th Driest	Driest since: 1977	1977
Oct 1977–Apr 1978 7-Month	13.93" (353.82mm)	8.85" (224.79mm)	5.08" (129.03mm)	3rd Wettest	Wettest to Date	1983
Sep 1977–Apr 1978 8-Month	14.94" (379.48mm)	9.43" (239.52mm)	5.51" (139.96mm)	127th Driest	Driest since: 1977	1977
Sep 1977–Apr 1978 8-Month	14.94" (379.48mm)	9.43" (239.52mm)	5.51" (139.96mm)	2nd Wettest	Wettest to Date	1983
Aug 1977–Apr 1978 9-Month	15.77" (400.56mm)	9.81" (249.17mm)	5.96" (151.39mm)	128th Driest	Driest since: 1977	1977
Aug 1977–Apr 1978 9-Month	15.77" (400.56mm)	9.81" (249.17mm)	5.96" (151.39mm)	1st Wettest	Wettest to Date	1978
Jul 1977–Apr 1978 10-Month	16.18" (410.97mm)	10.17" (258.32mm)	6.01" (152.65mm)	127th Driest	Driest since: 1977	2013
Jul 1977–Apr 1978 10-Month	16.18" (410.97mm)	10.17" (258.32mm)	6.01" (152.65mm)	2nd Wettest	Wettest to Date	1983
Jun 1977–Apr 1978 11-Month	16.94" (430.28mm)	11.29" (286.77mm)	5.65" (143.51mm)	126th Driest	Driest since: 1977	2013
Jun 1977–Apr 1978 11-Month	16.94" (430.28mm)	11.29" (286.77mm)	5.65" (143.51mm)	3rd Wettest	Wettest to Date	1983
May 1977–Apr 1978 12-Month	18.85" (478.79mm)	12.56" (319.02mm)	6.29" (159.77mm)	126th Driest	Driest since: 1977	2013
May 1977–Apr 1978 12-Month	18.85" (478.79mm)	12.56" (319.02mm)	6.29" (159.77mm)	3rd Wettest	Wettest to Date	1983
Nov 1976–Apr 1978 18-Month	21.26" (540.00mm)	20.52" (521.21mm)	0.74" (18.79mm)	79th Driest	Driest since: 1977	1934
Nov 1976–Apr 1978 18-Month	21.26" (540.00mm)	20.52" (521.21mm)	0.74" (18.79mm)	49th Wettest	Wettest since: 1976	1983
May 1976–Apr 1978 24-Month	26.67" (677.42mm)	25.15" (638.81mm)	1.52" (38.61mm)	88th Driest	Driest since: 1977	1930
May 1976–Apr 1978 24-Month	26.67" (677.42mm)	25.15" (638.81mm)	1.52" (38.61mm)	40th Wettest	Wettest since: 1972	1984
May 1975–Apr 1978 36-Month	39.29" (997.97mm)	37.68" (957.07mm)	1.61" (40.90mm)	88th Driest	Driest since: 1977	1931
	39.29" (997.97mm)	37.68" (957.07mm)	1.61" (40.90mm)	39th Wettest	Wettest since: 1973	1984
	Ties: 1959
May 1974–Apr 1978 48-Month	50.97" (1,294.64mm)	50.16" (1,274.06mm)	0.81" (20.58mm)	80th Driest	Driest since: 1977	1932
	50.97" (1,294.64mm)	50.16" (1,274.06mm)	0.81" (20.58mm)	46th Wettest	Wettest since: 1974	1984
	Ties: 1919
May 1973–Apr 1978 60-Month	63.83" (1,621.28mm)	62.65" (1,591.31mm)	1.18" (29.97mm)	86th Driest	Driest since: 1977	1933
May 1973–Apr 1978 60-Month	63.83" (1,621.28mm)	62.65" (1,591.31mm)	1.18" (29.97mm)	39th Wettest	Wettest since: 1975	1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings