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


Iowa

Precipitation Rankings, April 1947

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
April 1947
1-Month
4.91"
(124.71mm)
2.94"
(74.68mm)
1.97"
(50.03mm)
117th Driest Driest since: 1946 1926
9th Wettest Wettest since: 1897 2013
Mar–Apr 1947
2-Month
6.26"
(159.00mm)
4.90"
(124.46mm)
1.36"
(34.54mm)
98th Driest Driest since: 1946 1910
28th Wettest Wettest since: 1945 1991
Feb–Apr 1947
3-Month
6.56"
(166.62mm)
5.92"
(150.37mm)
0.64"
(16.25mm)
79th Driest Driest since: 1946 1910
47th Wettest Wettest since: 1945 1951
Jan–Apr 1947
4-Month
7.99"
(202.95mm)
6.89"
(175.01mm)
1.10"
(27.94mm)
86th Driest Driest since: 1946 1934
40th Wettest Wettest since: 1945 1951
Dec 1946–Apr 1947
5-Month
8.61"
(218.69mm)
7.99"
(202.95mm)
0.62"
(15.74mm)
72nd Driest Driest since: 1943 1956
53rd Wettest Wettest since: 1946 1973
Nov 1946–Apr 1947
6-Month
10.34"
(262.64mm)
9.74"
(247.40mm)
0.60"
(15.24mm)
72nd Driest Driest since: 1943 1956
53rd Wettest Wettest since: 1946 2016
Oct 1946–Apr 1947
7-Month
13.65"
(346.71mm)
12.05"
(306.07mm)
1.60"
(40.64mm)
86th Driest Driest since: 1946 1934
39th Wettest Wettest since: 1942 1973
Sep 1946–Apr 1947
8-Month
18.67"
(474.22mm)
15.75"
(400.05mm)
2.92"
(74.17mm)
96th Driest Driest since: 1946 1956
29th Wettest Wettest since: 1942 2019
Aug 1946–Apr 1947
9-Month
22.27"
(565.66mm)
19.61"
(498.09mm)
2.66"
(67.57mm)
95th Driest Driest since: 1946 1956
30th Wettest Wettest since: 1942 2019
Jul 1946–Apr 1947
10-Month
24.75"
(628.65mm)
23.49"
(596.65mm)
1.26"
(32.00mm)
80th Driest Driest since: 1946 1956
45th Wettest Wettest since: 1945 2019
Jun 1946–Apr 1947
11-Month
31.00"
(787.40mm)
28.09"
(713.49mm)
2.91"
(73.91mm)
90th Driest Driest since: 1946 1956
35th Wettest Wettest since: 1942 2019
May 1946–Apr 1947
12-Month
35.52"
(902.21mm)
32.14"
(816.36mm)
3.38"
(85.85mm)
91st Driest Driest since: 1946 1956
34th Wettest Wettest since: 1945 2019
Nov 1945–Apr 1947
18-Month
46.09"
(1,170.69mm)
41.90"
(1,064.26mm)
4.19"
(106.43mm)
93rd Driest Driest since: 1946 1956
31st Wettest Wettest since: 1945 1994
May 1945–Apr 1947
24-Month
67.71"
(1,719.83mm)
64.29"
(1,632.97mm)
3.42"
(86.86mm)
79th Driest Driest since: 1942 1957
45th Wettest Wettest since: 1946 2017
May 1944–Apr 1947
36-Month
104.63"
(2,657.60mm)
96.34"
(2,447.04mm)
8.29"
(210.56mm)
95th Driest Driest since: 1946 1958
28th Wettest Wettest since: 1945 2011
May 1943–Apr 1947
48-Month
139.12"
(3,533.65mm)
128.30"
(3,258.82mm)
10.82"
(274.83mm)
95th Driest Driest since: 1946 1957
27th Wettest Wettest since: 1945 2011
May 1942–Apr 1947
60-Month
172.51"
(4,381.75mm)
160.29"
(4,071.37mm)
12.22"
(310.38mm)
94th Driest Driest since: 1946 1958
27th Wettest Wettest since: 1907 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 19, 2020 from https://www.ncdc.noaa.gov/cag/