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 1998

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1998
1-Month 		1.44"
(36.58mm)		 0.58"
(14.73mm)		 0.86"
(21.85mm)		 120th Driest
Driest since:
 1922, 1935, 1943, 1974, 1987
9th Wettest
Wettest since:
 1940
Aug–Sep 1998
2-Month 		1.54"
(39.12mm)		 0.96"
(24.38mm)		 0.58"
(14.74mm)		 106th Driest
Driest since:
 1935
23rd Wettest
Wettest since:
 1976
Jul–Sep 1998
3-Month 		2.51"
(63.75mm)		 1.32"
(33.53mm)		 1.19"
(30.22mm)		 121st Driest
Driest since:
 2018
8th Wettest
Wettest since:
 1976
Jun–Sep 1998
4-Month 		3.94"
(100.08mm)		 2.43"
(61.72mm)		 1.51"
(38.36mm)		 121st Driest
Driest since:
 1935
8th Wettest
Wettest since:
 1913
May–Sep 1998
5-Month 		8.62"
(218.95mm)		 3.70"
(93.98mm)		 4.92"
(124.97mm)		 128th Driest
Driest since:
 1928
1st Wettest
Wettest to Date
 1998
Apr–Sep 1998
6-Month 		10.32"
(262.13mm)		 4.80"
(121.92mm)		 5.52"
(140.21mm)		 128th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Mar–Sep 1998
7-Month 		12.02"
(305.31mm)		 6.01"
(152.65mm)		 6.01"
(152.66mm)		 128th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Feb–Sep 1998
8-Month 		14.13"
(358.90mm)		 7.32"
(185.93mm)		 6.81"
(172.97mm)		 128th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Jan–Sep 1998
9-Month 		16.58"
(421.13mm)		 8.89"
(225.81mm)		 7.69"
(195.32mm)		 128th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Dec 1997–Sep 1998
10-Month 		17.40"
(441.96mm)		 10.36"
(263.14mm)		 7.04"
(178.82mm)		 127th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Nov 1997–Sep 1998
11-Month 		18.42"
(467.87mm)		 11.66"
(296.16mm)		 6.76"
(171.71mm)		 127th Driest
Driest since:
 1924
1st Wettest
Wettest to Date
 1998
Oct 1997–Sep 1998
12-Month 		18.89"
(479.81mm)		 12.55"
(318.77mm)		 6.34"
(161.04mm)		 126th Driest
Driest since:
 1966
2nd Wettest
Wettest since:
 1983
Apr 1997–Sep 1998
18-Month 		24.33"
(617.98mm)		 17.37"
(441.20mm)		 6.96"
(176.78mm)		 125th Driest
Driest since:
 1929
3rd Wettest
Wettest since:
 1983
Oct 1996–Sep 1998
24-Month 		34.34"
(872.24mm)		 25.13"
(638.30mm)		 9.21"
(233.94mm)		 124th Driest
Driest since:
 1955
3rd Wettest
Wettest since:
 1984
Oct 1995–Sep 1998
36-Month 		49.28"
(1,251.71mm)		 37.71"
(957.83mm)		 11.57"
(293.88mm)		 122nd Driest
Driest since:
 1931
4th Wettest
Wettest since:
 1984
Oct 1994–Sep 1998
48-Month 		66.59"
(1,691.39mm)		 50.20"
(1,275.08mm)		 16.39"
(416.31mm)		 122nd Driest
Driest since:
 1934
3rd Wettest
Wettest since:
 1984
Oct 1993–Sep 1998
60-Month 		74.93"
(1,903.22mm)		 62.67"
(1,591.82mm)		 12.26"
(311.40mm)		 117th Driest
Driest since:
 1934
7th Wettest
Wettest since:
 1984

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