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, November 2020

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
November 2020
1-Month 		2.68"
(68.07mm)		 3.13"
(79.50mm)		 -0.45"
(-11.43mm)		 52nd Driest
Driest since:
 1904
77th Wettest
Wettest since:
 1985
Oct–Nov 2020
2-Month 		6.67"
(169.42mm)		 6.03"
(153.16mm)		 0.64"
(16.26mm)		 81st Driest
Driest since:
 1904
48th Wettest
Wettest since:
 1919
Sep–Nov 2020
3-Month 		9.91"
(251.71mm)		 9.50"
(241.30mm)		 0.41"
(10.41mm)		 73rd Driest
Driest since:
 1953
56th Wettest
Wettest since:
 1926
Ties: 1915
Aug–Nov 2020
4-Month 		13.71"
(348.23mm)		 13.17"
(334.52mm)		 0.54"
(13.71mm)		 76th Driest
Driest since:
 1953
53rd Wettest
Wettest since:
 1926
Jul–Nov 2020
5-Month 		18.64"
(473.46mm)		 17.16"
(435.86mm)		 1.48"
(37.60mm)		 86th Driest
Driest since:
 1953
43rd Wettest
Wettest since:
 1926
Jun–Nov 2020
6-Month 		22.55"
(572.77mm)		 21.42"
(544.07mm)		 1.13"
(28.70mm)		 73rd Driest
Driest since:
 1953
56th Wettest
Wettest since:
 1926
May–Nov 2020
7-Month 		27.98"
(710.69mm)		 25.68"
(652.27mm)		 2.30"
(58.42mm)		 82nd Driest
Driest since:
 1953
47th Wettest
Wettest since:
 1915
Apr–Nov 2020
8-Month 		32.55"
(826.77mm)		 29.60"
(751.84mm)		 2.95"
(74.93mm)		 92nd Driest
Driest since:
 1930
37th Wettest
Wettest since:
 2011
Ties: 2010
Mar–Nov 2020
9-Month 		38.02"
(965.71mm)		 33.41"
(848.61mm)		 4.61"
(117.10mm)		 106th Driest
Driest since:
 1930
23rd Wettest
Wettest since:
 2011
Feb–Nov 2020
10-Month 		42.16"
(1,070.86mm)		 36.08"
(916.43mm)		 6.08"
(154.43mm)		 116th Driest
Driest since:
 1930
13th Wettest
Wettest since:
 2011
Jan–Nov 2020
11-Month 		46.73"
(1,186.94mm)		 39.12"
(993.65mm)		 7.61"
(193.29mm)		 120th Driest
Driest since:
 1930
9th Wettest
Wettest since:
 2019
Dec 2019–Nov 2020
12-Month 		50.30"
(1,277.62mm)		 42.22"
(1,072.39mm)		 8.08"
(205.23mm)		 117th Driest
Driest since:
 1901
11th Wettest
Wettest since:
 2019
Jun 2019–Nov 2020
18-Month 		75.89"
(1,927.61mm)		 63.66"
(1,616.96mm)		 12.23"
(310.65mm)		 124th Driest
Driest since:
 1953
4th Wettest
Wettest since:
 2019
Dec 2018–Nov 2020
24-Month 		105.05"
(2,668.27mm)		 84.44"
(2,144.78mm)		 20.61"
(523.49mm)		 125th Driest
Driest since:
 1931
2nd Wettest
Wettest since:
 2019
Dec 2017–Nov 2020
36-Month 		155.64"
(3,953.26mm)		 126.67"
(3,217.42mm)		 28.97"
(735.84mm)		 125th Driest
Driest since:
 1954
1st Wettest
Wettest to Date
 2020
Dec 2016–Nov 2020
48-Month 		202.44"
(5,141.98mm)		 168.94"
(4,291.08mm)		 33.50"
(850.90mm)		 124th Driest
Driest since:
 1956
1st Wettest
Wettest to Date
 2020
Dec 2015–Nov 2020
60-Month 		248.00"
(6,299.20mm)		 211.17"
(5,363.72mm)		 36.83"
(935.48mm)		 122nd Driest
Driest since:
 1956
2nd Wettest
Wettest to Date
 2021

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