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 2019. For more information, please see Climatological Rankings.


Ohio Valley Climate Region

Precipitation Rankings, May 1991

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1991
1-Month
4.53"
(115.06mm)
4.27"
(108.46mm)
0.26"
(6.60mm)
73rd Driest Driest since: 1988 1934
53rd Wettest Wettest since: 1990 1995
Apr–May 1991
2-Month
8.73"
(221.74mm)
8.18"
(207.77mm)
0.55"
(13.97mm)
79th Driest Driest since: 1989 1934
47th Wettest Wettest since: 1990 2011
Ties: 1917
Mar–May 1991
3-Month
13.13"
(333.50mm)
11.99"
(304.55mm)
1.14"
(28.95mm)
81st Driest Driest since: 1989 1941
45th Wettest Wettest since: 1990 2011
Feb–May 1991
4-Month
15.81"
(401.57mm)
14.67"
(372.62mm)
1.14"
(28.95mm)
80th Driest Driest since: 1988 1941
46th Wettest Wettest since: 1990 2011
Jan–May 1991
5-Month
18.24"
(463.30mm)
17.71"
(449.83mm)
0.53"
(13.47mm)
67th Driest Driest since: 1988 1941
59th Wettest Wettest since: 1990 2019
Ties: 2003
Dec 1990–May 1991
6-Month
25.68"
(652.27mm)
20.80"
(528.32mm)
4.88"
(123.95mm)
114th Driest Driest since: 1990 1941
11th Wettest Wettest since: 1979 2019
Nov 1990–May 1991
7-Month
28.78"
(731.01mm)
23.95"
(608.33mm)
4.83"
(122.68mm)
113th Driest Driest since: 1990 1934
12th Wettest Wettest since: 1983 2019
Oct 1990–May 1991
8-Month
33.26"
(844.80mm)
26.86"
(682.24mm)
6.40"
(162.56mm)
117th Driest Driest since: 1990 1934
8th Wettest Wettest since: 1984 2019
Sep 1990–May 1991
9-Month
36.08"
(916.43mm)
30.32"
(770.13mm)
5.76"
(146.30mm)
112th Driest Driest since: 1990 1941
13th Wettest Wettest since: 1974 1927
Aug 1990–May 1991
10-Month
39.73"
(1,009.14mm)
33.99"
(863.35mm)
5.74"
(145.79mm)
112th Driest Driest since: 1990 1954
13th Wettest Wettest since: 1975 1927
Jul 1990–May 1991
11-Month
44.22"
(1,123.19mm)
37.99"
(964.95mm)
6.23"
(158.24mm)
114th Driest Driest since: 1990 1941
11th Wettest Wettest since: 1974 1927
Ties: 1912
Jun 1990–May 1991
12-Month
48.66"
(1,235.96mm)
42.24"
(1,072.90mm)
6.42"
(163.06mm)
112th Driest Driest since: 1990 1931
13th Wettest Wettest since: 1974 2019
Dec 1989–May 1991
18-Month
72.48"
(1,840.99mm)
63.02"
(1,600.71mm)
9.46"
(240.28mm)
116th Driest Driest since: 1990 1931
8th Wettest Wettest since: 1974 2019
Jun 1989–May 1991
24-Month
95.89"
(2,435.61mm)
84.48"
(2,145.79mm)
11.41"
(289.82mm)
114th Driest Driest since: 1990 1941
10th Wettest Wettest since: 1975 1974
Jun 1988–May 1991
36-Month
138.77"
(3,524.76mm)
126.72"
(3,218.69mm)
12.05"
(306.07mm)
109th Driest Driest since: 1990 1955
14th Wettest Wettest since: 1975 1975
Jun 1987–May 1991
48-Month
176.39"
(4,480.31mm)
168.95"
(4,291.33mm)
7.44"
(188.98mm)
90th Driest Driest since: 1990 1956
32nd Wettest Wettest since: 1986 2019
Jun 1986–May 1991
60-Month
217.12"
(5,514.85mm)
211.18"
(5,363.97mm)
5.94"
(150.88mm)
77th Driest Driest since: 1990 1957
44th Wettest Wettest since: 1987 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published September 2019, retrieved on September 20, 2019 from https://www.ncdc.noaa.gov/cag/