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 September 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, May 1903

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 1903
1-Month
8.55"
(217.17mm)
4.05"
(102.87mm)
4.50"
(114.30mm)
124th Driest Driest since: 1902 1934
2nd Wettest Wettest to Date 2013
Apr–May 1903
2-Month
11.53"
(292.86mm)
6.99"
(177.55mm)
4.54"
(115.31mm)
124th Driest Driest since: 1902 1934
2nd Wettest Wettest to Date 2013
Ties: 2008
Mar–May 1903
3-Month
12.91"
(327.91mm)
8.95"
(227.33mm)
3.96"
(100.58mm)
115th Driest Driest since: 1902 1934
11th Wettest Wettest to Date 2013
Feb–May 1903
4-Month
14.03"
(356.36mm)
9.96"
(252.98mm)
4.07"
(103.38mm)
113th Driest Driest since: 1902 1934
13th Wettest Wettest to Date 2013
Jan–May 1903
5-Month
14.28"
(362.71mm)
10.94"
(277.88mm)
3.34"
(84.83mm)
107th Driest Driest since: 1902 1934
19th Wettest Wettest to Date 2013
Dec 1902–May 1903
6-Month
16.44"
(417.58mm)
12.04"
(305.82mm)
4.40"
(111.76mm)
114th Driest Driest since: 1902 1934
11th Wettest Wettest to Date 2013
Nov 1902–May 1903
7-Month
18.51"
(470.15mm)
13.78"
(350.01mm)
4.73"
(120.14mm)
113th Driest Driest since: 1902 1934
12th Wettest Wettest to Date 2013
Oct 1902–May 1903
8-Month
20.84"
(529.34mm)
16.10"
(408.94mm)
4.74"
(120.40mm)
109th Driest Driest since: 1902 1934
16th Wettest Wettest to Date 2019
Sep 1902–May 1903
9-Month
25.30"
(642.62mm)
19.79"
(502.67mm)
5.51"
(139.95mm)
109th Driest Driest since: 1902 1934
16th Wettest Wettest to Date 2019
Aug 1902–May 1903
10-Month
32.02"
(813.31mm)
23.65"
(600.71mm)
8.37"
(212.60mm)
121st Driest Driest since: 1902 1934
4th Wettest Wettest to Date 2019
Jul 1902–May 1903
11-Month
40.65"
(1,032.51mm)
27.54"
(699.52mm)
13.11"
(332.99mm)
123rd Driest Driest since: 1902 1934
2nd Wettest Wettest to Date 2019
Jun 1902–May 1903
12-Month
47.78"
(1,213.61mm)
32.14"
(816.36mm)
15.64"
(397.25mm)
123rd Driest Driest since: 1902 1934
2nd Wettest Wettest to Date 2019
Dec 1901–May 1903
18-Month
59.02"
(1,499.11mm)
44.20"
(1,122.68mm)
14.82"
(376.43mm)
120th Driest Driest since: 1902 1934
4th Wettest Wettest to Date 2019
Jun 1901–May 1903
24-Month
74.10"
(1,882.14mm)
64.29"
(1,632.97mm)
9.81"
(249.17mm)
108th Driest Driest since: 1902 1957
16th Wettest Wettest to Date 2011
Jun 1900–May 1903
36-Month
108.33"
(2,751.58mm)
96.33"
(2,446.78mm)
12.00"
(304.80mm)
105th Driest Driest since: 1902 1958
18th Wettest Wettest to Date 2011
Jun 1899–May 1903
48-Month
135.39"
(3,438.91mm)
128.31"
(3,259.07mm)
7.08"
(179.84mm)
88th Driest Driest since: 1902 1957
34th Wettest Wettest to Date 2011
Jun 1898–May 1903
60-Month
165.06"
(4,192.52mm)
160.32"
(4,072.13mm)
4.74"
(120.39mm)
76th Driest Driest since: 1902 1958
45th Wettest Wettest to Date 2019

Citing This Page

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