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 1917

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 1917
1-Month
3.07"
(77.98mm)
2.90"
(73.66mm)
0.17"
(4.32mm)
75th Driest
Driest since:
1963
54th Wettest
Wettest since:
1919
Sep–Oct 1917
2-Month
5.63"
(143.00mm)
6.37"
(161.80mm)
-0.74"
(-18.80mm)
41st Driest
Driest since:
1897
88th Wettest
Wettest since:
1926
Ties: 1935, 1950
Aug–Oct 1917
3-Month
9.08"
(230.63mm)
10.04"
(255.02mm)
-0.96"
(-24.39mm)
37th Driest
Driest since:
1897
92nd Wettest
Wettest since:
1926
Jul–Oct 1917
4-Month
13.14"
(333.76mm)
14.04"
(356.62mm)
-0.90"
(-22.86mm)
38th Driest
Driest since:
1953
91st Wettest
Wettest since:
1926
Jun–Oct 1917
5-Month
17.84"
(453.14mm)
18.29"
(464.57mm)
-0.45"
(-11.43mm)
51st Driest
Driest since:
1953
78th Wettest
Wettest since:
1926
May–Oct 1917
6-Month
22.03"
(559.56mm)
22.56"
(573.02mm)
-0.53"
(-13.46mm)
43rd Driest
Driest since:
1930
86th Wettest
Wettest since:
2009
Apr–Oct 1917
7-Month
26.57"
(674.88mm)
26.47"
(672.34mm)
0.10"
(2.54mm)
57th Driest
Driest since:
1930
72nd Wettest
Wettest since:
2009
Mar–Oct 1917
8-Month
31.42"
(798.07mm)
30.28"
(769.11mm)
1.14"
(28.96mm)
72nd Driest
Driest since:
1930
57th Wettest
Wettest since:
2009
Ties: 1920
Feb–Oct 1917
9-Month
33.08"
(840.23mm)
32.95"
(836.93mm)
0.13"
(3.30mm)
59th Driest
Driest since:
1930
70th Wettest
Wettest since:
2019
Jan–Oct 1917
10-Month
36.73"
(932.94mm)
36.00"
(914.40mm)
0.73"
(18.54mm)
67th Driest
Driest since:
1930
62nd Wettest
Wettest since:
2019
Ties: 2001
Dec 1916–Oct 1917
11-Month
39.84"
(1,011.94mm)
39.09"
(992.89mm)
0.75"
(19.05mm)
62nd Driest
Driest since:
1930
66th Wettest
Wettest since:
2019
Nov 1916–Oct 1917
12-Month
41.84"
(1,062.74mm)
42.23"
(1,072.64mm)
-0.39"
(-9.90mm)
48th Driest
Driest since:
1963
80th Wettest
Wettest since:
2019
May 1916–Oct 1917
18-Month
64.33"
(1,633.98mm)
64.79"
(1,645.67mm)
-0.46"
(-11.69mm)
49th Driest
Driest since:
1931
79th Wettest
Wettest since:
2019
Nov 1915–Oct 1917
24-Month
86.49"
(2,196.85mm)
84.46"
(2,145.28mm)
2.03"
(51.57mm)
67th Driest
Driest since:
1931
60th Wettest
Wettest since:
2020
Nov 1914–Oct 1917
36-Month
130.38"
(3,311.65mm)
126.69"
(3,217.93mm)
3.69"
(93.72mm)
73rd Driest
Driest since:
1954
53rd Wettest
Wettest since:
2020
Nov 1913–Oct 1917
48-Month
166.23"
(4,222.24mm)
168.97"
(4,291.84mm)
-2.74"
(-69.60mm)
37th Driest
Driest since:
1956
88th Wettest
Wettest since:
2021
Nov 1912–Oct 1917
60-Month
207.62"
(5,273.55mm)
211.20"
(5,364.48mm)
-3.58"
(-90.93mm)
38th Driest
Driest since:
1956
86th Wettest
Wettest since:
2020

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