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 July 2020. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, April 2020

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
April 2020
1-Month
1.64"
(41.66mm)
2.94"
(74.68mm)
-1.30"
(-33.02mm)
16th Driest Driest since: 2018 1926
111th Wettest Wettest since: 2019 2013
Mar–Apr 2020
2-Month
4.54"
(115.32mm)
4.90"
(124.46mm)
-0.36"
(-9.14mm)
53rd Driest Driest since: 2018 1910
74th Wettest Wettest since: 2019 1991
Feb–Apr 2020
3-Month
4.97"
(126.24mm)
5.92"
(150.37mm)
-0.95"
(-24.13mm)
33rd Driest Driest since: 2000 1910
94th Wettest Wettest since: 2019 1951
Jan–Apr 2020
4-Month
6.34"
(161.04mm)
6.89"
(175.01mm)
-0.55"
(-13.97mm)
49th Driest Driest since: 2015 1934
78th Wettest Wettest since: 2019 1951
Dec 2019–Apr 2020
5-Month
7.62"
(193.55mm)
7.99"
(202.95mm)
-0.37"
(-9.40mm)
49th Driest Driest since: 2018 1956
77th Wettest Wettest since: 2019 1973
Nov 2019–Apr 2020
6-Month
9.11"
(231.39mm)
9.74"
(247.40mm)
-0.63"
(-16.01mm)
51st Driest Driest since: 2018 1956
75th Wettest Wettest since: 2019 2016
Oct 2019–Apr 2020
7-Month
13.89"
(352.81mm)
12.05"
(306.07mm)
1.84"
(46.74mm)
91st Driest Driest since: 2018 1934
35th Wettest Wettest since: 2019 1973
Sep 2019–Apr 2020
8-Month
20.10"
(510.54mm)
15.75"
(400.05mm)
4.35"
(110.49mm)
111th Driest Driest since: 2018 1956
15th Wettest Wettest since: 2019 2019
Ties: 2008
Aug 2019–Apr 2020
9-Month
23.63"
(600.20mm)
19.61"
(498.09mm)
4.02"
(102.11mm)
107th Driest Driest since: 2018 1956
19th Wettest Wettest since: 2019 2019
Jul 2019–Apr 2020
10-Month
27.01"
(686.05mm)
23.49"
(596.65mm)
3.52"
(89.40mm)
100th Driest Driest since: 2018 1956
26th Wettest Wettest since: 2019 2019
Jun 2019–Apr 2020
11-Month
30.92"
(785.37mm)
28.09"
(713.49mm)
2.83"
(71.88mm)
90th Driest Driest since: 2018 1956
36th Wettest Wettest since: 2019 2019
May 2019–Apr 2020
12-Month
39.13"
(993.90mm)
32.14"
(816.36mm)
6.99"
(177.54mm)
112th Driest Driest since: 2018 1956
14th Wettest Wettest since: 2019 2019
Nov 2018–Apr 2020
18-Month
51.88"
(1,317.75mm)
41.90"
(1,064.26mm)
9.98"
(253.49mm)
114th Driest Driest since: 2018 1956
11th Wettest Wettest since: 2019 1994
May 2018–Apr 2020
24-Month
86.67"
(2,201.42mm)
64.29"
(1,632.97mm)
22.38"
(568.45mm)
124th Driest Driest since: 2019 1957
1st Wettest Wettest to Date 2020
May 2017–Apr 2020
36-Month
116.49"
(2,958.85mm)
96.34"
(2,447.04mm)
20.15"
(511.81mm)
118th Driest Driest since: 2018 1958
6th Wettest Wettest since: 2019 2011
May 2016–Apr 2020
48-Month
156.57"
(3,976.88mm)
128.30"
(3,258.82mm)
28.27"
(718.06mm)
119th Driest Driest since: 2018 1957
4th Wettest Wettest since: 2019 2011
May 2015–Apr 2020
60-Month
200.48"
(5,092.19mm)
160.29"
(4,071.37mm)
40.19"
(1,020.82mm)
121st Driest Driest since: 2019 1958
1st Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 8, 2020 from https://www.ncdc.noaa.gov/cag/