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 1938

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 1938
1-Month
5.49"
(139.45mm)
4.05"
(102.87mm)
1.44"
(36.58mm)
98th Driest Driest since: 1937 1934
28th Wettest Wettest since: 1918 2013
Apr–May 1938
2-Month
9.11"
(231.39mm)
6.99"
(177.55mm)
2.12"
(53.84mm)
96th Driest Driest since: 1937 1934
30th Wettest Wettest since: 1927 2013
Mar–May 1938
3-Month
11.44"
(290.58mm)
8.95"
(227.33mm)
2.49"
(63.25mm)
100th Driest Driest since: 1937 1934
26th Wettest Wettest since: 1913 2013
Feb–May 1938
4-Month
12.39"
(314.71mm)
9.96"
(252.98mm)
2.43"
(61.73mm)
95th Driest Driest since: 1937 1934
31st Wettest Wettest since: 1927 2013
Jan–May 1938
5-Month
13.49"
(342.65mm)
10.94"
(277.88mm)
2.55"
(64.77mm)
95th Driest Driest since: 1937 1934
31st Wettest Wettest since: 1915 2013
Dec 1937–May 1938
6-Month
14.23"
(361.44mm)
12.04"
(305.82mm)
2.19"
(55.62mm)
92nd Driest Driest since: 1937 1934
33rd Wettest Wettest since: 1915 2013
Nov 1937–May 1938
7-Month
14.94"
(379.48mm)
13.78"
(350.01mm)
1.16"
(29.47mm)
76th Driest Driest since: 1937 1934
49th Wettest Wettest since: 1935 2013
Oct 1937–May 1938
8-Month
17.03"
(432.56mm)
16.10"
(408.94mm)
0.93"
(23.62mm)
72nd Driest Driest since: 1937 1934
53rd Wettest Wettest since: 1935 2019
Sep 1937–May 1938
9-Month
18.57"
(471.68mm)
19.79"
(502.67mm)
-1.22"
(-30.99mm)
46th Driest Driest since: 1936 1934
79th Wettest Wettest since: 1937 2019
Aug 1937–May 1938
10-Month
22.68"
(576.07mm)
23.65"
(600.71mm)
-0.97"
(-24.64mm)
51st Driest Driest since: 1936 1934
74th Wettest Wettest since: 1937 2019
Jul 1937–May 1938
11-Month
25.20"
(640.08mm)
27.54"
(699.52mm)
-2.34"
(-59.44mm)
33rd Driest Driest since: 1936 1934
92nd Wettest Wettest since: 1937 2019
Ties: 1981
Jun 1937–May 1938
12-Month
28.92"
(734.57mm)
32.14"
(816.36mm)
-3.22"
(-81.79mm)
29th Driest Driest since: 1934 1934
96th Wettest Wettest since: 1937 2019
Dec 1936–May 1938
18-Month
42.50"
(1,079.50mm)
44.20"
(1,122.68mm)
-1.70"
(-43.18mm)
46th Driest Driest since: 1937 1934
78th Wettest Wettest since: 1933 2019
Jun 1936–May 1938
24-Month
58.66"
(1,489.96mm)
64.29"
(1,632.97mm)
-5.63"
(-143.01mm)
26th Driest Driest since: 1935 1957
98th Wettest Wettest since: 1937 2011
Jun 1935–May 1938
36-Month
88.91"
(2,258.31mm)
96.33"
(2,446.78mm)
-7.42"
(-188.47mm)
23rd Driest Driest since: 1936 1958
100th Wettest Wettest since: 1937 2011
Jun 1934–May 1938
48-Month
121.43"
(3,084.32mm)
128.31"
(3,259.07mm)
-6.88"
(-174.75mm)
26th Driest Driest since: 1937 1957
96th Wettest Wettest since: 1932 2011
Jun 1933–May 1938
60-Month
140.59"
(3,570.99mm)
160.32"
(4,072.13mm)
-19.73"
(-501.14mm)
4th Driest Driest since: 1934 1958
117th Wettest Wettest since: 1937 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 22, 2019 from https://www.ncdc.noaa.gov/cag/