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 1902

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 1902
1-Month
5.54"
(140.72mm)
4.05"
(102.87mm)
1.49"
(37.85mm)
99th Driest Driest since: 1901 1934
27th Wettest Wettest since: 1899 2013
Apr–May 1902
2-Month
7.28"
(184.91mm)
6.99"
(177.55mm)
0.29"
(7.36mm)
66th Driest Driest since: 1901 1934
60th Wettest Wettest since: 1899 2013
Mar–May 1902
3-Month
8.72"
(221.49mm)
8.95"
(227.33mm)
-0.23"
(-5.84mm)
55th Driest Driest since: 1901 1934
71st Wettest Wettest since: 1899 2013
Feb–May 1902
4-Month
9.40"
(238.76mm)
9.96"
(252.98mm)
-0.56"
(-14.22mm)
46th Driest Driest since: 1901 1934
80th Wettest Wettest since: 1899 2013
Jan–May 1902
5-Month
10.29"
(261.37mm)
10.94"
(277.88mm)
-0.65"
(-16.51mm)
49th Driest Driest since: 1901 1934
77th Wettest Wettest since: 1899 2013
Dec 1901–May 1902
6-Month
11.24"
(285.50mm)
12.04"
(305.82mm)
-0.80"
(-20.32mm)
41st Driest Driest since: 1901 1934
84th Wettest Wettest since: 1900 2013
Nov 1901–May 1902
7-Month
12.07"
(306.58mm)
13.78"
(350.01mm)
-1.71"
(-43.43mm)
32nd Driest Driest since: 1901 1934
93rd Wettest Wettest since: 1900 2013
Oct 1901–May 1902
8-Month
14.09"
(357.89mm)
16.10"
(408.94mm)
-2.01"
(-51.05mm)
28th Driest Driest since: 1901 1934
97th Wettest Wettest since: 1900 2019
Sep 1901–May 1902
9-Month
18.90"
(480.06mm)
19.79"
(502.67mm)
-0.89"
(-22.61mm)
50th Driest Driest since: 1900 1934
75th Wettest Wettest since: 1901 2019
Ties: 1948
Aug 1901–May 1902
10-Month
20.22"
(513.59mm)
23.65"
(600.71mm)
-3.43"
(-87.12mm)
23rd Driest Driest since: 1900 1934
102nd Wettest Wettest since: 1901 2019
Ties: 1957
Jul 1901–May 1902
11-Month
22.52"
(572.01mm)
27.54"
(699.52mm)
-5.02"
(-127.51mm)
21st Driest Driest since: 1900 1934
104th Wettest Wettest since: 1901 2019
Jun 1901–May 1902
12-Month
26.32"
(668.53mm)
32.14"
(816.36mm)
-5.82"
(-147.83mm)
13th Driest Driest since: 1898 1934
112th Wettest Wettest since: 1901 2019
Dec 1900–May 1902
18-Month
35.23"
(894.84mm)
44.20"
(1,122.68mm)
-8.97"
(-227.84mm)
9th Driest Driest to Date 1934
115th Wettest Wettest since: 1901 2019
Jun 1900–May 1902
24-Month
60.55"
(1,537.97mm)
64.29"
(1,632.97mm)
-3.74"
(-95.00mm)
35th Driest Driest since: 1900 1957
89th Wettest Wettest since: 1901 2011
Jun 1899–May 1902
36-Month
87.61"
(2,225.29mm)
96.33"
(2,446.78mm)
-8.72"
(-221.49mm)
17th Driest Driest since: 1900 1958
106th Wettest Wettest since: 1901 2011
Jun 1898–May 1902
48-Month
117.28"
(2,978.91mm)
128.31"
(3,259.07mm)
-11.03"
(-280.16mm)
15th Driest Driest since: 1901 1957
107th Wettest Wettest since: 1900 2011
Jun 1897–May 1902
60-Month
143.14"
(3,635.76mm)
160.32"
(4,072.13mm)
-17.18"
(-436.37mm)
7th Driest Driest to Date 1958
114th Wettest Wettest since: 1901 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 18, 2019 from https://www.ncdc.noaa.gov/cag/