Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1927

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
September 1927
1-Month
3.47"
(88.14mm)
3.47"
(88.14mm)
0.00"
(0.00mm)
76th Driest
Driest since:
1897
53rd Wettest
Wettest since:
1926
Aug–Sep 1927
2-Month
7.17"
(182.12mm)
7.14"
(181.36mm)
0.03"
(0.76mm)
73rd Driest
Driest since:
1897
56th Wettest
Wettest since:
1926
Jul–Sep 1927
3-Month
11.13"
(282.70mm)
11.14"
(282.96mm)
-0.01"
(-0.26mm)
65th Driest
Driest since:
1953
64th Wettest
Wettest since:
1926
Jun–Sep 1927
4-Month
15.57"
(395.48mm)
15.39"
(390.91mm)
0.18"
(4.57mm)
66th Driest
Driest since:
1953
63rd Wettest
Wettest since:
1915
May–Sep 1927
5-Month
21.71"
(551.43mm)
19.66"
(499.36mm)
2.05"
(52.07mm)
90th Driest
Driest since:
1930
39th Wettest
Wettest since:
1915
Apr–Sep 1927
6-Month
28.51"
(724.15mm)
23.57"
(598.68mm)
4.94"
(125.47mm)
118th Driest
Driest since:
1930
11th Wettest
Wettest since:
2011
Mar–Sep 1927
7-Month
33.75"
(857.25mm)
27.38"
(695.45mm)
6.37"
(161.80mm)
125th Driest
Driest since:
1930
4th Wettest
Wettest to Date
1945
Ties: 2015
Feb–Sep 1927
8-Month
36.09"
(916.69mm)
30.05"
(763.27mm)
6.04"
(153.42mm)
121st Driest
Driest since:
1930
8th Wettest
Wettest to Date
1945
Jan–Sep 1927
9-Month
39.63"
(1,006.60mm)
33.10"
(840.74mm)
6.53"
(165.86mm)
120th Driest
Driest since:
1930
9th Wettest
Wettest since:
1950
Dec 1926–Sep 1927
10-Month
43.61"
(1,107.69mm)
36.19"
(919.23mm)
7.42"
(188.46mm)
120th Driest
Driest since:
1930
8th Wettest
Wettest since:
1950
Nov 1926–Sep 1927
11-Month
46.96"
(1,192.78mm)
39.33"
(998.98mm)
7.63"
(193.80mm)
119th Driest
Driest since:
1930
9th Wettest
Wettest since:
2019
Oct 1926–Sep 1927
12-Month
51.70"
(1,313.18mm)
42.25"
(1,073.15mm)
9.45"
(240.03mm)
123rd Driest
Driest since:
1925
5th Wettest
Wettest to Date
2019
Apr 1926–Sep 1927
18-Month
77.45"
(1,967.23mm)
65.79"
(1,671.07mm)
11.66"
(296.16mm)
122nd Driest
Driest since:
1931
6th Wettest
Wettest to Date
2019
Oct 1925–Sep 1927
24-Month
96.53"
(2,451.86mm)
84.47"
(2,145.54mm)
12.06"
(306.32mm)
117th Driest
Driest since:
1941
10th Wettest
Wettest to Date
2020
Oct 1924–Sep 1927
36-Month
129.93"
(3,300.22mm)
126.72"
(3,218.69mm)
3.21"
(81.53mm)
70th Driest
Driest since:
1941
56th Wettest
Wettest since:
2020
Oct 1923–Sep 1927
48-Month
174.15"
(4,423.41mm)
168.99"
(4,292.35mm)
5.16"
(131.06mm)
78th Driest
Driest since:
1956
47th Wettest
Wettest since:
2021
Oct 1922–Sep 1927
60-Month
217.60"
(5,527.04mm)
211.21"
(5,364.73mm)
6.39"
(162.31mm)
79th Driest
Driest since:
1956
45th Wettest
Wettest since:
2020

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