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 2020. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, May 1900

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1900
1-Month
3.13"
(79.50mm)
4.05"
(102.87mm)
-0.92"
(-23.37mm)
35th Driest Driest since: 1897 1934
92nd Wettest Wettest since: 1899 2013
Apr–May 1900
2-Month
5.82"
(147.83mm)
6.99"
(177.55mm)
-1.17"
(-29.72mm)
38th Driest Driest since: 1895 1934
89th Wettest Wettest since: 1899 2013
Ties: 1932
Mar–May 1900
3-Month
7.91"
(200.91mm)
8.95"
(227.33mm)
-1.04"
(-26.42mm)
39th Driest Driest since: 1895 1934
88th Wettest Wettest since: 1899 2013
Feb–May 1900
4-Month
9.18"
(233.17mm)
9.96"
(252.98mm)
-0.78"
(-19.81mm)
40th Driest Driest since: 1895 1934
87th Wettest Wettest since: 1899 2013
Jan–May 1900
5-Month
9.68"
(245.87mm)
10.94"
(277.88mm)
-1.26"
(-32.01mm)
35th Driest Driest since: 1895 1934
92nd Wettest Wettest since: 1899 2013
Dec 1899–May 1900
6-Month
11.27"
(286.26mm)
12.04"
(305.82mm)
-0.77"
(-19.56mm)
42nd Driest Driest to Date 1934
84th Wettest Wettest since: 1899 2013
Nov 1899–May 1900
7-Month
12.46"
(316.48mm)
13.78"
(350.01mm)
-1.32"
(-33.53mm)
38th Driest Driest to Date 1934
88th Wettest Wettest since: 1899 2013
Oct 1899–May 1900
8-Month
14.29"
(362.97mm)
16.10"
(408.94mm)
-1.81"
(-45.97mm)
33rd Driest Driest to Date 1934
93rd Wettest Wettest since: 1899 2019
Sep 1899–May 1900
9-Month
15.25"
(387.35mm)
19.79"
(502.67mm)
-4.54"
(-115.32mm)
15th Driest Driest to Date 1934
111th Wettest Wettest since: 1899 2019
Aug 1899–May 1900
10-Month
18.79"
(477.27mm)
23.65"
(600.71mm)
-4.86"
(-123.44mm)
10th Driest Driest since: 1898 1934
116th Wettest Wettest since: 1899 2019
Ties: 1898, 1968
Jul 1899–May 1900
11-Month
21.89"
(556.01mm)
27.54"
(699.52mm)
-5.65"
(-143.51mm)
14th Driest Driest to Date 1934
112th Wettest Wettest since: 1899 2019
Jun 1899–May 1900
12-Month
27.06"
(687.32mm)
32.14"
(816.36mm)
-5.08"
(-129.04mm)
16th Driest Driest since: 1898 1934
110th Wettest Wettest since: 1899 2019
Dec 1898–May 1900
18-Month
38.60"
(980.44mm)
44.20"
(1,122.68mm)
-5.60"
(-142.24mm)
21st Driest Driest since: 1898 1934
104th Wettest Wettest since: 1899 2019
Jun 1898–May 1900
24-Month
56.73"
(1,440.94mm)
64.29"
(1,632.97mm)
-7.56"
(-192.03mm)
18th Driest Driest since: 1899 1957
107th Wettest Wettest since: 1898 2020
Jun 1897–May 1900
36-Month
82.59"
(2,097.79mm)
96.33"
(2,446.78mm)
-13.74"
(-348.99mm)
5th Driest Driest to Date 1958
119th Wettest Wettest since: 1899 2011
Jun 1896–May 1900
48-Month
117.56"
(2,986.02mm)
128.31"
(3,259.07mm)
-10.75"
(-273.05mm)
16th Driest Driest to Date 1957
107th Wettest Wettest since: 1899 2011
Jun 1895–May 1900
60-Month
149.62"
(3,800.35mm)
160.32"
(4,072.13mm)
-10.70"
(-271.78mm)
18th Driest Driest to Date 1958
104th Wettest Wettest to Date 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2020, retrieved on December 1, 2020 from https://www.ncdc.noaa.gov/cag/