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 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1991
1-Month
3.08"
(78.23mm)
3.47"
(88.14mm)
-0.39"
(-9.91mm)
51st Driest Driest since: 1990 1897
77th Wettest Wettest since: 1989 1926
Aug–Sep 1991
2-Month
5.92"
(150.37mm)
7.14"
(181.36mm)
-1.22"
(-30.99mm)
26th Driest Driest since: 1984 1897
102nd Wettest Wettest since: 1990 1926
Ties: 1984
Jul–Sep 1991
3-Month
8.97"
(227.84mm)
11.14"
(282.96mm)
-2.17"
(-55.12mm)
10th Driest Driest since: 1983 1953
118th Wettest Wettest since: 1990 1926
Jun–Sep 1991
4-Month
11.39"
(289.31mm)
15.39"
(390.91mm)
-4.00"
(-101.60mm)
4th Driest Driest since: 1983 1953
124th Wettest Wettest since: 1990 1915
May–Sep 1991
5-Month
15.92"
(404.37mm)
19.66"
(499.36mm)
-3.74"
(-94.99mm)
12th Driest Driest since: 1988 1930
116th Wettest Wettest since: 1990 1915
Apr–Sep 1991
6-Month
20.12"
(511.05mm)
23.57"
(598.68mm)
-3.45"
(-87.63mm)
18th Driest Driest since: 1988 1930
110th Wettest Wettest since: 1990 2011
Mar–Sep 1991
7-Month
24.52"
(622.81mm)
27.38"
(695.45mm)
-2.86"
(-72.64mm)
27th Driest Driest since: 1988 1930
101st Wettest Wettest since: 1990 1945
Feb–Sep 1991
8-Month
27.20"
(690.88mm)
30.05"
(763.27mm)
-2.85"
(-72.39mm)
27th Driest Driest since: 1988 1930
101st Wettest Wettest since: 1990 1945
Jan–Sep 1991
9-Month
29.63"
(752.60mm)
33.10"
(840.74mm)
-3.47"
(-88.14mm)
21st Driest Driest since: 1988 1930
107th Wettest Wettest since: 1990 1950
Dec 1990–Sep 1991
10-Month
37.07"
(941.58mm)
36.19"
(919.23mm)
0.88"
(22.35mm)
69th Driest Driest since: 1988 1930
58th Wettest Wettest since: 1990 1950
Nov 1990–Sep 1991
11-Month
40.17"
(1,020.32mm)
39.33"
(998.98mm)
0.84"
(21.34mm)
65th Driest Driest since: 1988 1930
62nd Wettest Wettest since: 1990 2019
Oct 1990–Sep 1991
12-Month
44.65"
(1,134.11mm)
42.25"
(1,073.15mm)
2.40"
(60.96mm)
84th Driest Driest since: 1990 1925
43rd Wettest Wettest since: 1989 2019
Apr 1990–Sep 1991
18-Month
70.59"
(1,792.99mm)
65.79"
(1,671.07mm)
4.80"
(121.92mm)
92nd Driest Driest since: 1990 1931
35th Wettest Wettest since: 1982 2019
Oct 1989–Sep 1991
24-Month
88.83"
(2,256.28mm)
84.47"
(2,145.54mm)
4.36"
(110.74mm)
81st Driest Driest since: 1989 1941
45th Wettest Wettest since: 1990 2020
Oct 1988–Sep 1991
36-Month
137.89"
(3,502.41mm)
126.72"
(3,218.69mm)
11.17"
(283.72mm)
106th Driest Driest since: 1990 1941
19th Wettest Wettest since: 1975 2020
Oct 1987–Sep 1991
48-Month
173.16"
(4,398.26mm)
168.99"
(4,292.35mm)
4.17"
(105.91mm)
72nd Driest Driest since: 1990 1956
52nd Wettest Wettest since: 1987 2021
Oct 1986–Sep 1991
60-Month
211.60"
(5,374.64mm)
211.21"
(5,364.73mm)
0.39"
(9.91mm)
55th Driest Driest since: 1990 1956
68th Wettest Wettest since: 1989 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/