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 1931

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 1931
1-Month
2.91"
(73.91mm)
4.05"
(102.87mm)
-1.14"
(-28.96mm)
31st Driest Driest since: 1929 1934
95th Wettest Wettest since: 1930 2013
Ties: 1979
Apr–May 1931
2-Month
5.18"
(131.57mm)
6.99"
(177.55mm)
-1.81"
(-45.98mm)
23rd Driest Driest since: 1928 1934
103rd Wettest Wettest since: 1930 2013
Mar–May 1931
3-Month
6.81"
(172.97mm)
8.95"
(227.33mm)
-2.14"
(-54.36mm)
23rd Driest Driest since: 1928 1934
103rd Wettest Wettest since: 1930 2013
Feb–May 1931
4-Month
7.04"
(178.82mm)
9.96"
(252.98mm)
-2.92"
(-74.16mm)
14th Driest Driest since: 1926 1934
112th Wettest Wettest since: 1930 2013
Jan–May 1931
5-Month
7.54"
(191.52mm)
10.94"
(277.88mm)
-3.40"
(-86.36mm)
11th Driest Driest since: 1926 1934
115th Wettest Wettest since: 1930 2013
Dec 1930–May 1931
6-Month
8.09"
(205.49mm)
12.04"
(305.82mm)
-3.95"
(-100.33mm)
10th Driest Driest since: 1926 1934
115th Wettest Wettest since: 1930 2013
Nov 1930–May 1931
7-Month
10.24"
(260.10mm)
13.78"
(350.01mm)
-3.54"
(-89.91mm)
14th Driest Driest since: 1928 1934
111th Wettest Wettest since: 1930 2013
Oct 1930–May 1931
8-Month
12.28"
(311.91mm)
16.10"
(408.94mm)
-3.82"
(-97.03mm)
13th Driest Driest since: 1926 1934
112th Wettest Wettest since: 1930 2019
Sep 1930–May 1931
9-Month
14.72"
(373.89mm)
19.79"
(502.67mm)
-5.07"
(-128.78mm)
11th Driest Driest since: 1925 1934
114th Wettest Wettest since: 1930 2019
Aug 1930–May 1931
10-Month
17.07"
(433.58mm)
23.65"
(600.71mm)
-6.58"
(-167.13mm)
8th Driest Driest since: 1925 1934
117th Wettest Wettest since: 1930 2019
Jul 1930–May 1931
11-Month
18.59"
(472.19mm)
27.54"
(699.52mm)
-8.95"
(-227.33mm)
4th Driest Driest to Date 1934
121st Wettest Wettest since: 1930 2019
Jun 1930–May 1931
12-Month
24.29"
(616.97mm)
32.14"
(816.36mm)
-7.85"
(-199.39mm)
5th Driest Driest to Date 1934
120th Wettest Wettest since: 1930 2019
Dec 1929–May 1931
18-Month
34.03"
(864.36mm)
44.20"
(1,122.68mm)
-10.17"
(-258.32mm)
6th Driest Driest since: 1911 1934
118th Wettest Wettest since: 1930 2019
Jun 1929–May 1931
24-Month
51.48"
(1,307.59mm)
64.29"
(1,632.97mm)
-12.81"
(-325.38mm)
3rd Driest Driest to Date 1957
121st Wettest Wettest since: 1930 2011
Jun 1928–May 1931
36-Month
90.33"
(2,294.38mm)
96.33"
(2,446.78mm)
-6.00"
(-152.40mm)
31st Driest Driest since: 1926 1958
92nd Wettest Wettest since: 1930 2011
Jun 1927–May 1931
48-Month
115.06"
(2,922.52mm)
128.31"
(3,259.07mm)
-13.25"
(-336.55mm)
11th Driest Driest since: 1926 1957
111th Wettest Wettest since: 1930 2011
Jun 1926–May 1931
60-Month
153.87"
(3,908.30mm)
160.32"
(4,072.13mm)
-6.45"
(-163.83mm)
30th Driest Driest since: 1928 1958
91st Wettest Wettest since: 1930 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/