Climate at a Glance

Statewide 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 October 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, May 1930

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1930
1-Month
3.76"
(95.50mm)
4.05"
(102.87mm)
-0.29"
(-7.37mm)
53rd Driest Driest since: 1929 1934
73rd Wettest Wettest since: 1927 2013
Ties: 1978
Apr–May 1930
2-Month
6.50"
(165.10mm)
6.99"
(177.55mm)
-0.49"
(-12.45mm)
50th Driest Driest since: 1928 1934
76th Wettest Wettest since: 1929 2013
Mar–May 1930
3-Month
7.39"
(187.71mm)
8.95"
(227.33mm)
-1.56"
(-39.62mm)
27th Driest Driest since: 1928 1934
99th Wettest Wettest since: 1929 2013
Feb–May 1930
4-Month
8.05"
(204.47mm)
9.96"
(252.98mm)
-1.91"
(-48.51mm)
23rd Driest Driest since: 1926 1934
103rd Wettest Wettest since: 1929 2013
Jan–May 1930
5-Month
9.34"
(237.24mm)
10.94"
(277.88mm)
-1.60"
(-40.64mm)
27th Driest Driest since: 1928 1934
99th Wettest Wettest since: 1929 2013
Dec 1929–May 1930
6-Month
9.74"
(247.40mm)
12.04"
(305.82mm)
-2.30"
(-58.42mm)
22nd Driest Driest since: 1928 1934
103rd Wettest Wettest since: 1929 2013
Nov 1929–May 1930
7-Month
10.92"
(277.37mm)
13.78"
(350.01mm)
-2.86"
(-72.64mm)
22nd Driest Driest since: 1928 1934
103rd Wettest Wettest since: 1929 2013
Oct 1929–May 1930
8-Month
13.86"
(352.04mm)
16.10"
(408.94mm)
-2.24"
(-56.90mm)
24th Driest Driest since: 1928 1934
101st Wettest Wettest since: 1929 2019
Sep 1929–May 1930
9-Month
17.64"
(448.06mm)
19.79"
(502.67mm)
-2.15"
(-54.61mm)
36th Driest Driest since: 1926 1934
89th Wettest Wettest since: 1929 2019
Aug 1929–May 1930
10-Month
20.13"
(511.30mm)
23.65"
(600.71mm)
-3.52"
(-89.41mm)
21st Driest Driest since: 1926 1934
104th Wettest Wettest since: 1929 2019
Jul 1929–May 1930
11-Month
24.33"
(617.98mm)
27.54"
(699.52mm)
-3.21"
(-81.54mm)
28th Driest Driest since: 1928 1934
97th Wettest Wettest since: 1929 2019
Jun 1929–May 1930
12-Month
27.19"
(690.63mm)
32.14"
(816.36mm)
-4.95"
(-125.73mm)
17th Driest Driest since: 1928 1934
108th Wettest Wettest since: 1929 2019
Dec 1928–May 1930
18-Month
39.66"
(1,007.36mm)
44.20"
(1,122.68mm)
-4.54"
(-115.32mm)
26th Driest Driest since: 1928 1934
98th Wettest Wettest since: 1929 2019
Jun 1928–May 1930
24-Month
66.04"
(1,677.42mm)
64.29"
(1,632.97mm)
1.75"
(44.45mm)
72nd Driest Driest since: 1929 1957
52nd Wettest Wettest since: 1927 2011
Jun 1927–May 1930
36-Month
90.77"
(2,305.56mm)
96.33"
(2,446.78mm)
-5.56"
(-141.22mm)
34th Driest Driest since: 1926 1958
89th Wettest Wettest since: 1929 2011
Jun 1926–May 1930
48-Month
129.58"
(3,291.33mm)
128.31"
(3,259.07mm)
1.27"
(32.26mm)
67th Driest Driest since: 1928 1957
55th Wettest Wettest since: 1929 2011
Jun 1925–May 1930
60-Month
158.40"
(4,023.36mm)
160.32"
(4,072.13mm)
-1.92"
(-48.77mm)
50th Driest Driest since: 1928 1958
71st Wettest Wettest since: 1929 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 12, 2019 from https://www.ncdc.noaa.gov/cag/