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 1956

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1956
1-Month
1.50"
(38.10mm)
2.90"
(73.66mm)
-1.40"
(-35.56mm)
13th Driest
Driest since:
1963
116th Wettest
Wettest since:
1919
Sep–Oct 1956
2-Month
3.25"
(82.55mm)
6.37"
(161.80mm)
-3.12"
(-79.25mm)
7th Driest
Driest since:
1897
122nd Wettest
Wettest since:
1926
Aug–Oct 1956
3-Month
6.75"
(171.45mm)
10.04"
(255.02mm)
-3.29"
(-83.57mm)
7th Driest
Driest since:
1897
122nd Wettest
Wettest since:
1926
Jul–Oct 1956
4-Month
11.73"
(297.94mm)
14.04"
(356.62mm)
-2.31"
(-58.68mm)
15th Driest
Driest since:
1953
114th Wettest
Wettest since:
1926
Jun–Oct 1956
5-Month
15.16"
(385.06mm)
18.29"
(464.57mm)
-3.13"
(-79.51mm)
17th Driest
Driest since:
1953
112th Wettest
Wettest since:
1926
May–Oct 1956
6-Month
19.61"
(498.09mm)
22.56"
(573.02mm)
-2.95"
(-74.93mm)
24th Driest
Driest since:
1930
105th Wettest
Wettest since:
2009
Apr–Oct 1956
7-Month
23.54"
(597.92mm)
26.47"
(672.34mm)
-2.93"
(-74.42mm)
22nd Driest
Driest since:
1930
107th Wettest
Wettest since:
2009
Mar–Oct 1956
8-Month
26.45"
(671.83mm)
30.28"
(769.11mm)
-3.83"
(-97.28mm)
18th Driest
Driest since:
1930
111th Wettest
Wettest since:
2009
Feb–Oct 1956
9-Month
31.68"
(804.67mm)
32.95"
(836.93mm)
-1.27"
(-32.26mm)
41st Driest
Driest since:
1930
88th Wettest
Wettest since:
2019
Jan–Oct 1956
10-Month
33.79"
(858.27mm)
36.00"
(914.40mm)
-2.21"
(-56.13mm)
29th Driest
Driest since:
1930
100th Wettest
Wettest since:
2019
Dec 1955–Oct 1956
11-Month
34.72"
(881.89mm)
39.09"
(992.89mm)
-4.37"
(-111.00mm)
14th Driest
Driest since:
1930
114th Wettest
Wettest since:
2019
Nov 1955–Oct 1956
12-Month
37.23"
(945.64mm)
42.23"
(1,072.64mm)
-5.00"
(-127.00mm)
15th Driest
Driest since:
1963
113th Wettest
Wettest since:
2019
May 1955–Oct 1956
18-Month
58.52"
(1,486.41mm)
64.79"
(1,645.67mm)
-6.27"
(-159.26mm)
16th Driest
Driest since:
1931
112th Wettest
Wettest since:
2019
Nov 1954–Oct 1956
24-Month
78.05"
(1,982.47mm)
84.46"
(2,145.28mm)
-6.41"
(-162.81mm)
14th Driest
Driest since:
1931
113th Wettest
Wettest since:
2020
Ties: 1967
Nov 1953–Oct 1956
36-Month
115.30"
(2,928.62mm)
126.69"
(3,217.93mm)
-11.39"
(-289.31mm)
11th Driest
Driest since:
1954
115th Wettest
Wettest since:
2020
Nov 1952–Oct 1956
48-Month
149.52"
(3,797.81mm)
168.97"
(4,291.84mm)
-19.45"
(-494.03mm)
1st Driest
Driest since:
1956
124th Wettest
Wettest since:
2021
Nov 1951–Oct 1956
60-Month
190.08"
(4,828.03mm)
211.20"
(5,364.48mm)
-21.12"
(-536.45mm)
1st Driest
Driest since:
1956
123rd Wettest
Wettest since:
2020

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