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 1927

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 1927
1-Month
4.72"
(119.89mm)
4.05"
(102.87mm)
0.67"
(17.02mm)
84th Driest Driest since: 1926 1934
42nd Wettest Wettest since: 1918 2013
Apr–May 1927
2-Month
9.49"
(241.05mm)
6.99"
(177.55mm)
2.50"
(63.50mm)
104th Driest Driest since: 1926 1934
22nd Wettest Wettest since: 1913 2013
Ties: 1982
Mar–May 1927
3-Month
11.37"
(288.80mm)
8.95"
(227.33mm)
2.42"
(61.47mm)
99th Driest Driest since: 1926 1934
27th Wettest Wettest since: 1913 2013
Feb–May 1927
4-Month
12.50"
(317.50mm)
9.96"
(252.98mm)
2.54"
(64.52mm)
98th Driest Driest since: 1926 1934
28th Wettest Wettest since: 1913 2013
Jan–May 1927
5-Month
12.79"
(324.87mm)
10.94"
(277.88mm)
1.85"
(46.99mm)
92nd Driest Driest since: 1926 1934
34th Wettest Wettest since: 1915 2013
Dec 1926–May 1927
6-Month
13.84"
(351.54mm)
12.04"
(305.82mm)
1.80"
(45.72mm)
87th Driest Driest since: 1926 1934
38th Wettest Wettest since: 1919 2013
Nov 1926–May 1927
7-Month
15.95"
(405.13mm)
13.78"
(350.01mm)
2.17"
(55.12mm)
91st Driest Driest since: 1926 1934
34th Wettest Wettest since: 1919 2013
Oct 1926–May 1927
8-Month
17.49"
(444.25mm)
16.10"
(408.94mm)
1.39"
(35.31mm)
80th Driest Driest since: 1926 1934
45th Wettest Wettest since: 1920 2019
Sep 1926–May 1927
9-Month
27.05"
(687.07mm)
19.79"
(502.67mm)
7.26"
(184.40mm)
119th Driest Driest since: 1926 1934
6th Wettest Wettest to Date 2019
Aug 1926–May 1927
10-Month
30.81"
(782.57mm)
23.65"
(600.71mm)
7.16"
(181.86mm)
116th Driest Driest since: 1926 1934
9th Wettest Wettest since: 1903 2019
Jul 1926–May 1927
11-Month
34.63"
(879.60mm)
27.54"
(699.52mm)
7.09"
(180.08mm)
114th Driest Driest since: 1926 1934
11th Wettest Wettest since: 1903 2019
Jun 1926–May 1927
12-Month
38.81"
(985.77mm)
32.14"
(816.36mm)
6.67"
(169.41mm)
108th Driest Driest since: 1926 1934
17th Wettest Wettest since: 1903 2019
Dec 1925–May 1927
18-Month
46.48"
(1,180.59mm)
44.20"
(1,122.68mm)
2.28"
(57.91mm)
74th Driest Driest since: 1926 1934
50th Wettest Wettest since: 1920 2019
Jun 1925–May 1927
24-Month
67.63"
(1,717.80mm)
64.29"
(1,632.97mm)
3.34"
(84.83mm)
84th Driest Driest since: 1926 1957
40th Wettest Wettest since: 1920 2011
Jun 1924–May 1927
36-Month
96.34"
(2,447.04mm)
96.33"
(2,446.78mm)
0.01"
(0.26mm)
61st Driest Driest since: 1926 1958
62nd Wettest Wettest since: 1922 2011
Jun 1923–May 1927
48-Month
124.75"
(3,168.65mm)
128.31"
(3,259.07mm)
-3.56"
(-90.42mm)
43rd Driest Driest since: 1926 1957
79th Wettest Wettest since: 1923 2011
Jun 1922–May 1927
60-Month
152.45"
(3,872.23mm)
160.32"
(4,072.13mm)
-7.87"
(-199.90mm)
22nd Driest Driest since: 1926 1958
99th Wettest Wettest since: 1924 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 14, 2019 from https://www.ncdc.noaa.gov/cag/