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, May 1977

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
May 1977
1-Month
1.91"
(48.51mm)
1.27"
(32.26mm)
0.64"
(16.25mm)
102nd Driest
Driest since:
1928
28th Wettest
Wettest since:
1998
Apr–May 1977
2-Month
2.10"
(53.34mm)
2.37"
(60.20mm)
-0.27"
(-6.86mm)
51st Driest
Driest since:
1924
79th Wettest
Wettest since:
1998
Mar–May 1977
3-Month
2.65"
(67.31mm)
3.58"
(90.93mm)
-0.93"
(-23.62mm)
31st Driest
Driest since:
1924
99th Wettest
Wettest since:
1998
Feb–May 1977
4-Month
3.21"
(81.53mm)
4.89"
(124.21mm)
-1.68"
(-42.68mm)
16th Driest
Driest since:
2013
114th Wettest
Wettest since:
1998
Jan–May 1977
5-Month
4.03"
(102.36mm)
6.46"
(164.08mm)
-2.43"
(-61.72mm)
13th Driest
Driest since:
1966
117th Wettest
Wettest since:
1998
Dec 1976–May 1977
6-Month
4.11"
(104.39mm)
7.93"
(201.42mm)
-3.82"
(-97.03mm)
4th Driest
Driest since:
1966
125th Wettest
Wettest since:
1998
Nov 1976–May 1977
7-Month
4.32"
(109.73mm)
9.24"
(234.70mm)
-4.92"
(-124.97mm)
2nd Driest
Driest since:
1924
127th Wettest
Wettest since:
1998
Oct 1976–May 1977
8-Month
4.56"
(115.82mm)
10.12"
(257.05mm)
-5.56"
(-141.23mm)
1st Driest
Driest to Date
1977
128th Wettest
Wettest since:
2011
Sep 1976–May 1977
9-Month
5.99"
(152.15mm)
10.70"
(271.78mm)
-4.71"
(-119.63mm)
2nd Driest
Driest since:
1966
127th Wettest
Wettest since:
1983
Aug 1976–May 1977
10-Month
7.56"
(192.02mm)
11.08"
(281.43mm)
-3.52"
(-89.41mm)
13th Driest
Driest since:
2013
116th Wettest
Wettest since:
1983
Jul 1976–May 1977
11-Month
8.66"
(219.96mm)
11.44"
(290.58mm)
-2.78"
(-70.62mm)
20th Driest
Driest since:
1954
109th Wettest
Wettest since:
1983
Jun 1976–May 1977
12-Month
9.53"
(242.06mm)
12.56"
(319.02mm)
-3.03"
(-76.96mm)
15th Driest
Driest since:
2013
114th Wettest
Wettest since:
1983
Dec 1975–May 1977
18-Month
15.34"
(389.64mm)
20.48"
(520.19mm)
-5.14"
(-130.55mm)
7th Driest
Driest since:
1934
121st Wettest
Wettest since:
1984
Ties: 2008
Jun 1975–May 1977
24-Month
22.00"
(558.80mm)
25.14"
(638.56mm)
-3.14"
(-79.76mm)
30th Driest
Driest since:
1934
98th Wettest
Wettest since:
1984
Jun 1974–May 1977
36-Month
33.70"
(855.98mm)
37.70"
(957.58mm)
-4.00"
(-101.60mm)
28th Driest
Driest since:
1931
99th Wettest
Wettest since:
1984
Ties: 1951
Jun 1973–May 1977
48-Month
45.86"
(1,164.84mm)
50.18"
(1,274.57mm)
-4.32"
(-109.73mm)
29th Driest
Driest since:
1934
97th Wettest
Wettest since:
1984
Jun 1972–May 1977
60-Month
57.91"
(1,470.91mm)
62.66"
(1,591.56mm)
-4.75"
(-120.65mm)
30th Driest
Driest since:
1934
95th Wettest
Wettest since:
1984

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