Divisional Rankings

Divisional Data Info
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, September 1931

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1931
1-Month 		0.24"
(6.10mm)		 0.58"
(14.73mm)		 -0.34"
(-8.63mm)		 35th Driest
Driest since:
 1922, 1935, 1943, 1974, 1987
94th Wettest
Wettest since:
 1940
Ties: 1979
Aug–Sep 1931
2-Month 		0.25"
(6.35mm)		 0.96"
(24.38mm)		 -0.71"
(-18.03mm)		 14th Driest
Driest since:
 1935
115th Wettest
Wettest since:
 1976
Jul–Sep 1931
3-Month 		0.29"
(7.37mm)		 1.32"
(33.53mm)		 -1.03"
(-26.16mm)		 5th Driest
Driest since:
 2018
124th Wettest
Wettest since:
 1976
Jun–Sep 1931
4-Month 		1.15"
(29.21mm)		 2.43"
(61.72mm)		 -1.28"
(-32.51mm)		 12th Driest
Driest since:
 1935
117th Wettest
Wettest since:
 1913
May–Sep 1931
5-Month 		1.66"
(42.16mm)		 3.70"
(93.98mm)		 -2.04"
(-51.82mm)		 6th Driest
Driest since:
 1928
123rd Wettest
Wettest since:
 1998
Ties: 1933
Apr–Sep 1931
6-Month 		2.14"
(54.36mm)		 4.80"
(121.92mm)		 -2.66"
(-67.56mm)		 4th Driest
Driest since:
 1924
125th Wettest
Wettest since:
 1998
Mar–Sep 1931
7-Month 		3.72"
(94.49mm)		 6.01"
(152.65mm)		 -2.29"
(-58.16mm)		 11th Driest
Driest since:
 1924
118th Wettest
Wettest since:
 1998
Feb–Sep 1931
8-Month 		4.67"
(118.62mm)		 7.32"
(185.93mm)		 -2.65"
(-67.31mm)		 11th Driest
Driest since:
 1924
118th Wettest
Wettest since:
 1998
Jan–Sep 1931
9-Month 		5.80"
(147.32mm)		 8.89"
(225.81mm)		 -3.09"
(-78.49mm)		 10th Driest
Driest since:
 1924
119th Wettest
Wettest since:
 1998
Ties: 2007
Dec 1930–Sep 1931
10-Month 		5.94"
(150.88mm)		 10.36"
(263.14mm)		 -4.42"
(-112.26mm)		 4th Driest
Driest since:
 1924
124th Wettest
Wettest since:
 1998
Nov 1930–Sep 1931
11-Month 		6.92"
(175.77mm)		 11.66"
(296.16mm)		 -4.74"
(-120.39mm)		 3rd Driest
Driest since:
 1924
125th Wettest
Wettest since:
 1998
Oct 1930–Sep 1931
12-Month 		7.59"
(192.79mm)		 12.55"
(318.77mm)		 -4.96"
(-125.98mm)		 3rd Driest
Driest since:
 1966
125th Wettest
Wettest since:
 1983
Apr 1930–Sep 1931
18-Month 		11.88"
(301.75mm)		 17.37"
(441.20mm)		 -5.49"
(-139.45mm)		 4th Driest
Driest since:
 1929
124th Wettest
Wettest since:
 1983
Oct 1929–Sep 1931
24-Month 		17.40"
(441.96mm)		 25.13"
(638.30mm)		 -7.73"
(-196.34mm)		 3rd Driest
Driest since:
 1955
124th Wettest
Wettest since:
 1984
Oct 1928–Sep 1931
36-Month 		26.55"
(674.37mm)		 37.71"
(957.83mm)		 -11.16"
(-283.46mm)		 1st Driest
Driest since:
 1931
125th Wettest
Wettest since:
 1984
Oct 1927–Sep 1931
48-Month 		36.64"
(930.66mm)		 50.20"
(1,275.08mm)		 -13.56"
(-344.42mm)		 2nd Driest
Driest since:
 1934
123rd Wettest
Wettest since:
 1984
Oct 1926–Sep 1931
60-Month 		49.45"
(1,256.03mm)		 62.67"
(1,591.82mm)		 -13.22"
(-335.79mm)		 6th Driest
Driest since:
 1934
118th Wettest
Wettest since:
 1984

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