Climate at a Glance

Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.


Ohio Valley Climate Region

Precipitation Rankings, September 2021

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2021
1-Month
3.49"
(88.65mm)
3.47"
(88.14mm)
0.02"
(0.51mm)
77th Driest Driest since: 2020 1897
51st Wettest Wettest since: 2018 1926
Ties: 1923
Aug–Sep 2021
2-Month
7.90"
(200.66mm)
7.14"
(181.36mm)
0.76"
(19.30mm)
93rd Driest Driest since: 2020 1897
35th Wettest Wettest since: 2018 1926
Jul–Sep 2021
3-Month
13.05"
(331.47mm)
11.14"
(282.96mm)
1.91"
(48.51mm)
105th Driest Driest since: 2020 1953
23rd Wettest Wettest since: 2018 1926
Jun–Sep 2021
4-Month
18.16"
(461.26mm)
15.39"
(390.91mm)
2.77"
(70.35mm)
110th Driest Driest since: 2020 1953
18th Wettest Wettest since: 2018 1915
May–Sep 2021
5-Month
22.29"
(566.17mm)
19.66"
(499.36mm)
2.63"
(66.81mm)
100th Driest Driest since: 2020 1930
28th Wettest Wettest since: 2019 1915
Apr–Sep 2021
6-Month
25.58"
(649.73mm)
23.57"
(598.68mm)
2.01"
(51.05mm)
83rd Driest Driest since: 2012 1930
45th Wettest Wettest since: 2020 2011
Mar–Sep 2021
7-Month
30.90"
(784.86mm)
27.38"
(695.45mm)
3.52"
(89.41mm)
104th Driest Driest since: 2016 1930
24th Wettest Wettest since: 2020 1945
Feb–Sep 2021
8-Month
33.57"
(852.68mm)
30.05"
(763.27mm)
3.52"
(89.41mm)
102nd Driest Driest since: 2017 1930
26th Wettest Wettest since: 2020 1945
Jan–Sep 2021
9-Month
36.52"
(927.61mm)
33.10"
(840.74mm)
3.42"
(86.87mm)
97th Driest Driest since: 2017 1930
31st Wettest Wettest since: 2020 1950
Dec 2020–Sep 2021
10-Month
39.08"
(992.63mm)
36.19"
(919.23mm)
2.89"
(73.40mm)
87th Driest Driest since: 2014 1930
40th Wettest Wettest since: 2020 1950
Nov 2020–Sep 2021
11-Month
41.76"
(1,060.70mm)
39.33"
(998.98mm)
2.43"
(61.72mm)
87th Driest Driest since: 2017 1930
40th Wettest Wettest since: 2020 2019
Oct 2020–Sep 2021
12-Month
45.75"
(1,162.05mm)
42.25"
(1,073.15mm)
3.50"
(88.90mm)
92nd Driest Driest since: 2017 1925
35th Wettest Wettest since: 2020 2019
Apr 2020–Sep 2021
18-Month
71.63"
(1,819.40mm)
65.79"
(1,671.07mm)
5.84"
(148.33mm)
100th Driest Driest since: 2017 1931
27th Wettest Wettest since: 2020 2019
Oct 2019–Sep 2021
24-Month
97.78"
(2,483.61mm)
84.47"
(2,145.54mm)
13.31"
(338.07mm)
120th Driest Driest since: 2018 1941
6th Wettest Wettest since: 2020 2020
Oct 2018–Sep 2021
36-Month
151.97"
(3,860.04mm)
126.72"
(3,218.69mm)
25.25"
(641.35mm)
123rd Driest Driest since: 2019 1941
2nd Wettest Wettest since: 2020 2020
Oct 2017–Sep 2021
48-Month
201.91"
(5,128.51mm)
168.99"
(4,292.35mm)
32.92"
(836.16mm)
123rd Driest Driest since: 2020 1956
1st Wettest Wettest to Date 2021
Oct 2016–Sep 2021
60-Month
245.78"
(6,242.81mm)
211.21"
(5,364.73mm)
34.57"
(878.08mm)
121st Driest Driest since: 2019 1956
2nd Wettest Wettest since: 2020 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Precipitation, published September 2022, retrieved on September 28, 2022 from https://www.ncdc.noaa.gov/cag/