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 1920

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 1920
1-Month
2.08"
(52.83mm)
2.90"
(73.66mm)
-0.82"
(-20.83mm)
26th Driest
Driest since:
1963
103rd Wettest
Wettest since:
1919
Ties: 1971
Sep–Oct 1920
2-Month
5.53"
(140.46mm)
6.37"
(161.80mm)
-0.84"
(-21.34mm)
39th Driest
Driest since:
1897
90th Wettest
Wettest since:
1926
Aug–Oct 1920
3-Month
10.22"
(259.59mm)
10.04"
(255.02mm)
0.18"
(4.57mm)
71st Driest
Driest since:
1897
58th Wettest
Wettest since:
1926
Jul–Oct 1920
4-Month
13.92"
(353.57mm)
14.04"
(356.62mm)
-0.12"
(-3.05mm)
57th Driest
Driest since:
1953
72nd Wettest
Wettest since:
1926
Jun–Oct 1920
5-Month
17.34"
(440.44mm)
18.29"
(464.57mm)
-0.95"
(-24.13mm)
42nd Driest
Driest since:
1953
87th Wettest
Wettest since:
1926
May–Oct 1920
6-Month
21.44"
(544.58mm)
22.56"
(573.02mm)
-1.12"
(-28.44mm)
37th Driest
Driest since:
1930
92nd Wettest
Wettest since:
2009
Apr–Oct 1920
7-Month
26.87"
(682.50mm)
26.47"
(672.34mm)
0.40"
(10.16mm)
62nd Driest
Driest since:
1930
67th Wettest
Wettest since:
2009
Mar–Oct 1920
8-Month
31.42"
(798.07mm)
30.28"
(769.11mm)
1.14"
(28.96mm)
72nd Driest
Driest since:
1930
57th Wettest
Wettest since:
2009
Ties: 1917
Feb–Oct 1920
9-Month
32.94"
(836.68mm)
32.95"
(836.93mm)
-0.01"
(-0.25mm)
54th Driest
Driest since:
1930
75th Wettest
Wettest since:
2019
Jan–Oct 1920
10-Month
36.34"
(923.04mm)
36.00"
(914.40mm)
0.34"
(8.64mm)
62nd Driest
Driest since:
1930
67th Wettest
Wettest since:
2019
Dec 1919–Oct 1920
11-Month
38.54"
(978.92mm)
39.09"
(992.89mm)
-0.55"
(-13.97mm)
46th Driest
Driest since:
1930
82nd Wettest
Wettest since:
2019
Nov 1919–Oct 1920
12-Month
43.14"
(1,095.76mm)
42.23"
(1,072.64mm)
0.91"
(23.12mm)
64th Driest
Driest since:
1963
64th Wettest
Wettest since:
2019
May 1919–Oct 1920
18-Month
69.55"
(1,766.57mm)
64.79"
(1,645.67mm)
4.76"
(120.90mm)
90th Driest
Driest since:
1931
38th Wettest
Wettest since:
2019
Nov 1918–Oct 1920
24-Month
87.21"
(2,215.13mm)
84.46"
(2,145.28mm)
2.75"
(69.85mm)
73rd Driest
Driest since:
1931
54th Wettest
Wettest since:
2020
Nov 1917–Oct 1920
36-Month
123.52"
(3,137.41mm)
126.69"
(3,217.93mm)
-3.17"
(-80.52mm)
35th Driest
Driest since:
1954
91st Wettest
Wettest since:
2020
Nov 1916–Oct 1920
48-Month
165.36"
(4,200.14mm)
168.97"
(4,291.84mm)
-3.61"
(-91.70mm)
32nd Driest
Driest since:
1956
93rd Wettest
Wettest since:
2021
Nov 1915–Oct 1920
60-Month
210.01"
(5,334.25mm)
211.20"
(5,364.48mm)
-1.19"
(-30.23mm)
46th Driest
Driest since:
1956
78th Wettest
Wettest since:
2020

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