Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio Valley Climate Region

Precipitation Rankings, October 1931

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1931
1-Month
2.90"
(73.66mm)
2.90"
(73.66mm)
0.00"
(0.00mm)
72nd Driest
Driest since:
1963
57th Wettest
Wettest since:
1919
Sep–Oct 1931
2-Month
6.64"
(168.66mm)
6.37"
(161.80mm)
0.27"
(6.86mm)
69th Driest
Driest since:
1897
60th Wettest
Wettest since:
1926
Aug–Oct 1931
3-Month
11.53"
(292.86mm)
10.04"
(255.02mm)
1.49"
(37.84mm)
98th Driest
Driest since:
1897
31st Wettest
Wettest since:
1926
Jul–Oct 1931
4-Month
15.24"
(387.10mm)
14.04"
(356.62mm)
1.20"
(30.48mm)
83rd Driest
Driest since:
1953
46th Wettest
Wettest since:
1926
Jun–Oct 1931
5-Month
18.17"
(461.52mm)
18.29"
(464.57mm)
-0.12"
(-3.05mm)
56th Driest
Driest since:
1953
73rd Wettest
Wettest since:
1926
May–Oct 1931
6-Month
21.81"
(553.97mm)
22.56"
(573.02mm)
-0.75"
(-19.05mm)
40th Driest
Driest since:
1930
89th Wettest
Wettest since:
2009
Apr–Oct 1931
7-Month
25.27"
(641.86mm)
26.47"
(672.34mm)
-1.20"
(-30.48mm)
43rd Driest
Driest since:
1930
86th Wettest
Wettest since:
2009
Ties: 1925
Mar–Oct 1931
8-Month
28.45"
(722.63mm)
30.28"
(769.11mm)
-1.83"
(-46.48mm)
35th Driest
Driest since:
1930
94th Wettest
Wettest since:
2009
Feb–Oct 1931
9-Month
30.89"
(784.61mm)
32.95"
(836.93mm)
-2.06"
(-52.32mm)
34th Driest
Driest since:
1930
95th Wettest
Wettest since:
2019
Jan–Oct 1931
10-Month
31.91"
(810.51mm)
36.00"
(914.40mm)
-4.09"
(-103.89mm)
17th Driest
Driest since:
1930
112th Wettest
Wettest since:
2019
Dec 1930–Oct 1931
11-Month
33.52"
(851.41mm)
39.09"
(992.89mm)
-5.57"
(-141.48mm)
11th Driest
Driest since:
1930
117th Wettest
Wettest since:
2019
Nov 1930–Oct 1931
12-Month
35.80"
(909.32mm)
42.23"
(1,072.64mm)
-6.43"
(-163.32mm)
10th Driest
Driest since:
1963
118th Wettest
Wettest since:
2019
May 1930–Oct 1931
18-Month
50.48"
(1,282.19mm)
64.79"
(1,645.67mm)
-14.31"
(-363.48mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Nov 1929–Oct 1931
24-Month
68.01"
(1,727.45mm)
84.46"
(2,145.28mm)
-16.45"
(-417.83mm)
1st Driest
Driest since:
1931
126th Wettest
Wettest since:
2020
Nov 1928–Oct 1931
36-Month
115.93"
(2,944.62mm)
126.69"
(3,217.93mm)
-10.76"
(-273.31mm)
12th Driest
Driest since:
1954
114th Wettest
Wettest since:
2020
Nov 1927–Oct 1931
48-Month
160.93"
(4,087.62mm)
168.97"
(4,291.84mm)
-8.04"
(-204.22mm)
21st Driest
Driest since:
1956
104th Wettest
Wettest since:
2021
Nov 1926–Oct 1931
60-Month
211.19"
(5,364.23mm)
211.20"
(5,364.48mm)
-0.01"
(-0.25mm)
52nd Driest
Driest since:
1956
72nd Wettest
Wettest since:
2020

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