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 1897

View Period (Months):
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1897
1-Month
0.89"
(22.61mm)
2.90"
(73.66mm)
-2.01"
(-51.05mm)
3rd Driest
Driest since:
1963
126th Wettest
Wettest since:
1919
Sep–Oct 1897
2-Month
1.59"
(40.39mm)
6.37"
(161.80mm)
-4.78"
(-121.41mm)
1st Driest
Driest since:
1897
128th Wettest
Wettest since:
1926
Aug–Oct 1897
3-Month
3.90"
(99.06mm)
10.04"
(255.02mm)
-6.14"
(-155.96mm)
1st Driest
Driest since:
1897
128th Wettest
Wettest since:
1926
Jul–Oct 1897
4-Month
8.00"
(203.20mm)
14.04"
(356.62mm)
-6.04"
(-153.42mm)
2nd Driest
Driest since:
1953
127th Wettest
Wettest since:
1926
Jun–Oct 1897
5-Month
12.33"
(313.18mm)
18.29"
(464.57mm)
-5.96"
(-151.39mm)
3rd Driest
Driest since:
1953
126th Wettest
Wettest since:
1926
May–Oct 1897
6-Month
15.36"
(390.14mm)
22.56"
(573.02mm)
-7.20"
(-182.88mm)
3rd Driest
Driest since:
1930
126th Wettest
Wettest since:
2009
Apr–Oct 1897
7-Month
20.02"
(508.51mm)
26.47"
(672.34mm)
-6.45"
(-163.83mm)
5th Driest
Driest since:
1930
124th Wettest
Wettest since:
2009
Mar–Oct 1897
8-Month
26.88"
(682.75mm)
30.28"
(769.11mm)
-3.40"
(-86.36mm)
20th Driest
Driest since:
1930
109th Wettest
Wettest since:
2009
Feb–Oct 1897
9-Month
30.66"
(778.76mm)
32.95"
(836.93mm)
-2.29"
(-58.17mm)
28th Driest
Driest since:
1930
101st Wettest
Wettest since:
2019
Ties: 1913, 1968
Jan–Oct 1897
10-Month
34.51"
(876.55mm)
36.00"
(914.40mm)
-1.49"
(-37.85mm)
39th Driest
Driest since:
1930
90th Wettest
Wettest since:
2019
Dec 1896–Oct 1897
11-Month
35.69"
(906.53mm)
39.09"
(992.89mm)
-3.40"
(-86.36mm)
21st Driest
Driest since:
1930
107th Wettest
Wettest since:
2019
Nov 1896–Oct 1897
12-Month
39.28"
(997.71mm)
42.23"
(1,072.64mm)
-2.95"
(-74.93mm)
27th Driest
Driest since:
1963
101st Wettest
Wettest since:
2019
May 1896–Oct 1897
18-Month
65.48"
(1,663.19mm)
64.79"
(1,645.67mm)
0.69"
(17.52mm)
57th Driest
Driest since:
1931
71st Wettest
Wettest to Date
2019
Nov 1895–Oct 1897
24-Month
84.54"
(2,147.32mm)
84.46"
(2,145.28mm)
0.08"
(2.04mm)
52nd Driest
Driest since:
1931
75th Wettest
Wettest to Date
2020

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