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, September 1923

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
September 1923
1-Month
3.49"
(88.65mm)
3.47"
(88.14mm)
0.02"
(0.51mm)
78th Driest
Driest since:
1897
51st Wettest
Wettest since:
1926
Aug–Sep 1923
2-Month
8.24"
(209.30mm)
7.14"
(181.36mm)
1.10"
(27.94mm)
102nd Driest
Driest since:
1897
27th Wettest
Wettest since:
1926
Jul–Sep 1923
3-Month
11.64"
(295.66mm)
11.14"
(282.96mm)
0.50"
(12.70mm)
76th Driest
Driest since:
1953
53rd Wettest
Wettest since:
1926
Jun–Sep 1923
4-Month
15.88"
(403.35mm)
15.39"
(390.91mm)
0.49"
(12.44mm)
68th Driest
Driest since:
1953
61st Wettest
Wettest since:
1915
Ties: 2020
May–Sep 1923
5-Month
20.37"
(517.40mm)
19.66"
(499.36mm)
0.71"
(18.04mm)
66th Driest
Driest since:
1930
63rd Wettest
Wettest since:
1915
Apr–Sep 1923
6-Month
23.75"
(603.25mm)
23.57"
(598.68mm)
0.18"
(4.57mm)
60th Driest
Driest since:
1930
69th Wettest
Wettest since:
2011
Mar–Sep 1923
7-Month
28.41"
(721.61mm)
27.38"
(695.45mm)
1.03"
(26.16mm)
71st Driest
Driest since:
1930
58th Wettest
Wettest since:
1945
Feb–Sep 1923
8-Month
31.03"
(788.16mm)
30.05"
(763.27mm)
0.98"
(24.89mm)
70th Driest
Driest since:
1930
59th Wettest
Wettest since:
1945
Jan–Sep 1923
9-Month
34.73"
(882.14mm)
33.10"
(840.74mm)
1.63"
(41.40mm)
79th Driest
Driest since:
1930
50th Wettest
Wettest since:
1950
Dec 1922–Sep 1923
10-Month
38.86"
(987.04mm)
36.19"
(919.23mm)
2.67"
(67.81mm)
85th Driest
Driest since:
1930
43rd Wettest
Wettest since:
1950
Nov 1922–Sep 1923
11-Month
41.33"
(1,049.78mm)
39.33"
(998.98mm)
2.00"
(50.80mm)
81st Driest
Driest since:
1930
47th Wettest
Wettest since:
2019
Ties: 1903
Oct 1922–Sep 1923
12-Month
43.45"
(1,103.63mm)
42.25"
(1,073.15mm)
1.20"
(30.48mm)
66th Driest
Driest since:
1925
62nd Wettest
Wettest since:
2019
Apr 1922–Sep 1923
18-Month
64.72"
(1,643.89mm)
65.79"
(1,671.07mm)
-1.07"
(-27.18mm)
44th Driest
Driest since:
1931
84th Wettest
Wettest since:
2019
Oct 1921–Sep 1923
24-Month
86.51"
(2,197.35mm)
84.47"
(2,145.54mm)
2.04"
(51.81mm)
68th Driest
Driest since:
1941
59th Wettest
Wettest since:
2020
Oct 1920–Sep 1923
36-Month
128.43"
(3,262.12mm)
126.72"
(3,218.69mm)
1.71"
(43.43mm)
64th Driest
Driest since:
1941
62nd Wettest
Wettest since:
2020
Oct 1919–Sep 1923
48-Month
176.79"
(4,490.47mm)
168.99"
(4,292.35mm)
7.80"
(198.12mm)
88th Driest
Driest since:
1956
37th Wettest
Wettest to Date
2021
Oct 1918–Sep 1923
60-Month
217.21"
(5,517.13mm)
211.21"
(5,364.73mm)
6.00"
(152.40mm)
78th Driest
Driest since:
1956
46th Wettest
Wettest to Date
2020
Ties: 2007

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