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 1920

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 1920
1-Month
3.30"
(83.82mm)
4.05"
(102.87mm)
-0.75"
(-19.05mm)
42nd Driest Driest since: 1919 1934
84th Wettest Wettest since: 1918 2013
Ties: 1975
Apr–May 1920
2-Month
7.70"
(195.58mm)
6.99"
(177.55mm)
0.71"
(18.03mm)
76th Driest Driest since: 1916 1934
50th Wettest Wettest since: 1919 2013
Mar–May 1920
3-Month
10.65"
(270.51mm)
8.95"
(227.33mm)
1.70"
(43.18mm)
92nd Driest Driest since: 1919 1934
34th Wettest Wettest since: 1913 2013
Feb–May 1920
4-Month
11.17"
(283.72mm)
9.96"
(252.98mm)
1.21"
(30.74mm)
87th Driest Driest since: 1918 1934
39th Wettest Wettest since: 1919 2013
Jan–May 1920
5-Month
11.60"
(294.64mm)
10.94"
(277.88mm)
0.66"
(16.76mm)
75th Driest Driest since: 1917 1934
51st Wettest Wettest since: 1919 2013
Ties: 1929
Dec 1919–May 1920
6-Month
12.17"
(309.12mm)
12.04"
(305.82mm)
0.13"
(3.30mm)
64th Driest Driest since: 1914 1934
61st Wettest Wettest since: 1919 2013
Nov 1919–May 1920
7-Month
15.58"
(395.73mm)
13.78"
(350.01mm)
1.80"
(45.72mm)
83rd Driest Driest since: 1918 1934
42nd Wettest Wettest since: 1919 2013
Oct 1919–May 1920
8-Month
18.75"
(476.25mm)
16.10"
(408.94mm)
2.65"
(67.31mm)
92nd Driest Driest since: 1918 1934
33rd Wettest Wettest since: 1919 2019
Sep 1919–May 1920
9-Month
24.05"
(610.87mm)
19.79"
(502.67mm)
4.26"
(108.20mm)
104th Driest Driest since: 1919 1934
21st Wettest Wettest since: 1915 2019
Aug 1919–May 1920
10-Month
26.68"
(677.67mm)
23.65"
(600.71mm)
3.03"
(76.96mm)
96th Driest Driest since: 1919 1934
29th Wettest Wettest since: 1915 2019
Jul 1919–May 1920
11-Month
29.42"
(747.27mm)
27.54"
(699.52mm)
1.88"
(47.75mm)
78th Driest Driest since: 1919 1934
47th Wettest Wettest since: 1916 2019
Jun 1919–May 1920
12-Month
35.27"
(895.86mm)
32.14"
(816.36mm)
3.13"
(79.50mm)
87th Driest Driest since: 1919 1934
38th Wettest Wettest since: 1916 2019
Dec 1918–May 1920
18-Month
49.23"
(1,250.44mm)
44.20"
(1,122.68mm)
5.03"
(127.76mm)
97th Driest Driest since: 1919 1934
27th Wettest Wettest since: 1916 2019
Jun 1918–May 1920
24-Month
68.80"
(1,747.52mm)
64.29"
(1,632.97mm)
4.51"
(114.55mm)
90th Driest Driest since: 1919 1957
34th Wettest Wettest since: 1916 2011
Jun 1917–May 1920
36-Month
96.86"
(2,460.24mm)
96.33"
(2,446.78mm)
0.53"
(13.46mm)
62nd Driest Driest since: 1919 1958
61st Wettest Wettest since: 1917 2011
Jun 1916–May 1920
48-Month
124.85"
(3,171.19mm)
128.31"
(3,259.07mm)
-3.46"
(-87.88mm)
44th Driest Driest since: 1915 1957
78th Wettest Wettest since: 1919 2011
Jun 1915–May 1920
60-Month
161.56"
(4,103.62mm)
160.32"
(4,072.13mm)
1.24"
(31.49mm)
67th Driest Driest since: 1918 1958
54th Wettest Wettest since: 1919 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 11, 2019 from https://www.ncdc.noaa.gov/cag/