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 1927

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 1927
1-Month
3.30"
(83.82mm)
2.90"
(73.66mm)
0.40"
(10.16mm)
80th Driest
Driest since:
1963
49th Wettest
Wettest since:
1919
Sep–Oct 1927
2-Month
6.77"
(171.96mm)
6.37"
(161.80mm)
0.40"
(10.16mm)
73rd Driest
Driest since:
1897
56th Wettest
Wettest since:
1926
Aug–Oct 1927
3-Month
10.47"
(265.94mm)
10.04"
(255.02mm)
0.43"
(10.92mm)
77th Driest
Driest since:
1897
52nd Wettest
Wettest since:
1926
Jul–Oct 1927
4-Month
14.43"
(366.52mm)
14.04"
(356.62mm)
0.39"
(9.90mm)
69th Driest
Driest since:
1953
60th Wettest
Wettest since:
1926
Jun–Oct 1927
5-Month
18.87"
(479.30mm)
18.29"
(464.57mm)
0.58"
(14.73mm)
69th Driest
Driest since:
1953
60th Wettest
Wettest since:
1926
May–Oct 1927
6-Month
25.01"
(635.25mm)
22.56"
(573.02mm)
2.45"
(62.23mm)
90th Driest
Driest since:
1930
39th Wettest
Wettest since:
2009
Apr–Oct 1927
7-Month
31.81"
(807.97mm)
26.47"
(672.34mm)
5.34"
(135.63mm)
119th Driest
Driest since:
1930
10th Wettest
Wettest to Date
2009
Ties: 2017
Mar–Oct 1927
8-Month
37.05"
(941.07mm)
30.28"
(769.11mm)
6.77"
(171.96mm)
122nd Driest
Driest since:
1930
7th Wettest
Wettest since:
2009
Feb–Oct 1927
9-Month
39.39"
(1,000.51mm)
32.95"
(836.93mm)
6.44"
(163.58mm)
120th Driest
Driest since:
1930
9th Wettest
Wettest to Date
2019
Jan–Oct 1927
10-Month
42.93"
(1,090.42mm)
36.00"
(914.40mm)
6.93"
(176.02mm)
120th Driest
Driest since:
1930
9th Wettest
Wettest since:
2019
Dec 1926–Oct 1927
11-Month
46.91"
(1,191.51mm)
39.09"
(992.89mm)
7.82"
(198.62mm)
119th Driest
Driest since:
1930
9th Wettest
Wettest since:
2019
Nov 1926–Oct 1927
12-Month
50.26"
(1,276.60mm)
42.23"
(1,072.64mm)
8.03"
(203.96mm)
121st Driest
Driest since:
1963
7th Wettest
Wettest since:
2019
May 1926–Oct 1927
18-Month
77.88"
(1,978.15mm)
64.79"
(1,645.67mm)
13.09"
(332.48mm)
125th Driest
Driest since:
1931
3rd Wettest
Wettest to Date
2019
Nov 1925–Oct 1927
24-Month
94.32"
(2,395.73mm)
84.46"
(2,145.28mm)
9.86"
(250.45mm)
113th Driest
Driest since:
1931
14th Wettest
Wettest to Date
2020
Nov 1924–Oct 1927
36-Month
132.57"
(3,367.28mm)
126.69"
(3,217.93mm)
5.88"
(149.35mm)
85th Driest
Driest since:
1954
41st Wettest
Wettest since:
2020
Nov 1923–Oct 1927
48-Month
174.81"
(4,440.17mm)
168.97"
(4,291.84mm)
5.84"
(148.33mm)
82nd Driest
Driest since:
1956
43rd Wettest
Wettest since:
2021
Nov 1922–Oct 1927
60-Month
218.78"
(5,557.01mm)
211.20"
(5,364.48mm)
7.58"
(192.53mm)
81st Driest
Driest since:
1956
43rd Wettest
Wettest to Date
2020

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