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 1966

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 1966
1-Month
2.14"
(54.36mm)
2.90"
(73.66mm)
-0.76"
(-19.30mm)
32nd Driest
Driest since:
1963
97th Wettest
Wettest since:
1919
Sep–Oct 1966
2-Month
5.79"
(147.07mm)
6.37"
(161.80mm)
-0.58"
(-14.73mm)
48th Driest
Driest since:
1897
81st Wettest
Wettest since:
1926
Aug–Oct 1966
3-Month
9.70"
(246.38mm)
10.04"
(255.02mm)
-0.34"
(-8.64mm)
55th Driest
Driest since:
1897
74th Wettest
Wettest since:
1926
Jul–Oct 1966
4-Month
13.18"
(334.77mm)
14.04"
(356.62mm)
-0.86"
(-21.85mm)
39th Driest
Driest since:
1953
90th Wettest
Wettest since:
1926
Jun–Oct 1966
5-Month
15.53"
(394.46mm)
18.29"
(464.57mm)
-2.76"
(-70.11mm)
21st Driest
Driest since:
1953
108th Wettest
Wettest since:
1926
May–Oct 1966
6-Month
19.31"
(490.47mm)
22.56"
(573.02mm)
-3.25"
(-82.55mm)
20th Driest
Driest since:
1930
109th Wettest
Wettest since:
2009
Apr–Oct 1966
7-Month
24.31"
(617.47mm)
26.47"
(672.34mm)
-2.16"
(-54.87mm)
33rd Driest
Driest since:
1930
96th Wettest
Wettest since:
2009
Mar–Oct 1966
8-Month
25.94"
(658.88mm)
30.28"
(769.11mm)
-4.34"
(-110.23mm)
16th Driest
Driest since:
1930
113th Wettest
Wettest since:
2009
Feb–Oct 1966
9-Month
29.05"
(737.87mm)
32.95"
(836.93mm)
-3.90"
(-99.06mm)
17th Driest
Driest since:
1930
112th Wettest
Wettest since:
2019
Jan–Oct 1966
10-Month
31.86"
(809.24mm)
36.00"
(914.40mm)
-4.14"
(-105.16mm)
15th Driest
Driest since:
1930
114th Wettest
Wettest since:
2019
Dec 1965–Oct 1966
11-Month
33.66"
(854.96mm)
39.09"
(992.89mm)
-5.43"
(-137.93mm)
12th Driest
Driest since:
1930
116th Wettest
Wettest since:
2019
Nov 1965–Oct 1966
12-Month
35.21"
(894.33mm)
42.23"
(1,072.64mm)
-7.02"
(-178.31mm)
8th Driest
Driest since:
1963
120th Wettest
Wettest since:
2019
May 1965–Oct 1966
18-Month
58.09"
(1,475.49mm)
64.79"
(1,645.67mm)
-6.70"
(-170.18mm)
13th Driest
Driest since:
1931
115th Wettest
Wettest since:
2019
Nov 1964–Oct 1966
24-Month
79.57"
(2,021.08mm)
84.46"
(2,145.28mm)
-4.89"
(-124.20mm)
22nd Driest
Driest since:
1931
105th Wettest
Wettest since:
2020
Nov 1963–Oct 1966
36-Month
117.80"
(2,992.12mm)
126.69"
(3,217.93mm)
-8.89"
(-225.81mm)
14th Driest
Driest since:
1954
112th Wettest
Wettest since:
2020
Nov 1962–Oct 1966
48-Month
149.68"
(3,801.87mm)
168.97"
(4,291.84mm)
-19.29"
(-489.97mm)
2nd Driest
Driest since:
1956
123rd Wettest
Wettest since:
2021
Nov 1961–Oct 1966
60-Month
192.95"
(4,900.93mm)
211.20"
(5,364.48mm)
-18.25"
(-463.55mm)
5th Driest
Driest since:
1956
119th Wettest
Wettest since:
2020

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