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


Iowa

Precipitation Rankings, April 1939

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 1939
1-Month
2.00"
(50.80mm)
2.94"
(74.68mm)
-0.94"
(-23.88mm)
28th Driest Driest since: 1936 1926
98th Wettest Wettest since: 1938 2013
Mar–Apr 1939
2-Month
3.63"
(92.20mm)
4.90"
(124.46mm)
-1.27"
(-32.26mm)
25th Driest Driest since: 1936 1910
101st Wettest Wettest since: 1938 1991
Ties: 1930
Feb–Apr 1939
3-Month
5.40"
(137.16mm)
5.92"
(150.37mm)
-0.52"
(-13.21mm)
43rd Driest Driest since: 1936 1910
83rd Wettest Wettest since: 1938 1951
Jan–Apr 1939
4-Month
6.26"
(159.00mm)
6.89"
(175.01mm)
-0.63"
(-16.01mm)
48th Driest Driest since: 1936 1934
78th Wettest Wettest since: 1938 1951
Dec 1938–Apr 1939
5-Month
6.95"
(176.53mm)
7.99"
(202.95mm)
-1.04"
(-26.42mm)
37th Driest Driest since: 1936 1956
88th Wettest Wettest since: 1938 1973
Nov 1938–Apr 1939
6-Month
9.65"
(245.11mm)
9.74"
(247.40mm)
-0.09"
(-2.29mm)
61st Driest Driest since: 1938 1956
64th Wettest Wettest since: 1937 2016
Oct 1938–Apr 1939
7-Month
10.50"
(266.70mm)
12.05"
(306.07mm)
-1.55"
(-39.37mm)
33rd Driest Driest since: 1934 1934
92nd Wettest Wettest since: 1938 1973
Sep 1938–Apr 1939
8-Month
16.45"
(417.83mm)
15.75"
(400.05mm)
0.70"
(17.78mm)
72nd Driest Driest since: 1938 1956
53rd Wettest Wettest since: 1937 2019
Aug 1938–Apr 1939
9-Month
19.95"
(506.73mm)
19.61"
(498.09mm)
0.34"
(8.64mm)
67th Driest Driest since: 1938 1956
58th Wettest Wettest since: 1937 2019
Ties: 1994
Jul 1938–Apr 1939
10-Month
24.52"
(622.81mm)
23.49"
(596.65mm)
1.03"
(26.16mm)
77th Driest Driest since: 1938 1956
48th Wettest Wettest since: 1935 2019
Jun 1938–Apr 1939
11-Month
29.09"
(738.89mm)
28.09"
(713.49mm)
1.00"
(25.40mm)
70th Driest Driest since: 1938 1956
55th Wettest Wettest since: 1932 2019
May 1938–Apr 1939
12-Month
34.58"
(878.33mm)
32.14"
(816.36mm)
2.44"
(61.97mm)
82nd Driest Driest since: 1938 1956
43rd Wettest Wettest since: 1932 2019
Nov 1937–Apr 1939
18-Month
44.03"
(1,118.36mm)
41.90"
(1,064.26mm)
2.13"
(54.10mm)
77th Driest Driest since: 1938 1956
47th Wettest Wettest since: 1933 1994
May 1937–Apr 1939
24-Month
61.98"
(1,574.29mm)
64.29"
(1,632.97mm)
-2.31"
(-58.68mm)
45th Driest Driest since: 1938 1957
79th Wettest Wettest since: 1933 2017
May 1936–Apr 1939
36-Month
90.53"
(2,299.46mm)
96.34"
(2,447.04mm)
-5.81"
(-147.58mm)
30th Driest Driest since: 1938 1958
93rd Wettest Wettest since: 1933 2011
May 1935–Apr 1939
48-Month
122.53"
(3,112.26mm)
128.30"
(3,258.82mm)
-5.77"
(-146.56mm)
28th Driest Driest since: 1938 1957
94th Wettest Wettest since: 1932 2011
May 1934–Apr 1939
60-Month
151.48"
(3,847.59mm)
160.29"
(4,071.37mm)
-8.81"
(-223.78mm)
22nd Driest Driest since: 1938 1958
99th Wettest Wettest since: 1933 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 17, 2020 from https://www.ncdc.noaa.gov/cag/