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 1940

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
April 1940
1-Month
3.15"
(80.01mm)
2.94"
(74.68mm)
0.21"
(5.33mm)
68th Driest Driest since: 1939 1926
58th Wettest Wettest since: 1938 2013
Mar–Apr 1940
2-Month
4.85"
(123.19mm)
4.90"
(124.46mm)
-0.05"
(-1.27mm)
59th Driest Driest since: 1939 1910
67th Wettest Wettest since: 1938 1991
Feb–Apr 1940
3-Month
5.96"
(151.38mm)
5.92"
(150.37mm)
0.04"
(1.01mm)
64th Driest Driest since: 1939 1910
62nd Wettest Wettest since: 1938 1951
Jan–Apr 1940
4-Month
6.77"
(171.96mm)
6.89"
(175.01mm)
-0.12"
(-3.05mm)
57th Driest Driest since: 1939 1934
69th Wettest Wettest since: 1938 1951
Dec 1939–Apr 1940
5-Month
7.37"
(187.20mm)
7.99"
(202.95mm)
-0.62"
(-15.75mm)
44th Driest Driest since: 1939 1956
81st Wettest Wettest since: 1938 1973
Ties: 1921
Nov 1939–Apr 1940
6-Month
7.86"
(199.64mm)
9.74"
(247.40mm)
-1.88"
(-47.76mm)
28th Driest Driest since: 1934 1956
97th Wettest Wettest since: 1939 2016
Ties: 1963, 1989
Oct 1939–Apr 1940
7-Month
9.34"
(237.24mm)
12.05"
(306.07mm)
-2.71"
(-68.83mm)
16th Driest Driest since: 1934 1934
109th Wettest Wettest since: 1939 1973
Sep 1939–Apr 1940
8-Month
10.18"
(258.57mm)
15.75"
(400.05mm)
-5.57"
(-141.48mm)
4th Driest Driest since: 1918 1956
121st Wettest Wettest since: 1939 2019
Aug 1939–Apr 1940
9-Month
14.85"
(377.19mm)
19.61"
(498.09mm)
-4.76"
(-120.90mm)
11th Driest Driest since: 1934 1956
114th Wettest Wettest since: 1939 2019
Jul 1939–Apr 1940
10-Month
18.05"
(458.47mm)
23.49"
(596.65mm)
-5.44"
(-138.18mm)
12th Driest Driest since: 1934 1956
113th Wettest Wettest since: 1939 2019
Jun 1939–Apr 1940
11-Month
22.97"
(583.44mm)
28.09"
(713.49mm)
-5.12"
(-130.05mm)
17th Driest Driest since: 1934 1956
108th Wettest Wettest since: 1939 2019
May 1939–Apr 1940
12-Month
25.01"
(635.25mm)
32.14"
(816.36mm)
-7.13"
(-181.11mm)
8th Driest Driest since: 1934 1956
117th Wettest Wettest since: 1939 2019
Nov 1938–Apr 1940
18-Month
34.66"
(880.36mm)
41.90"
(1,064.26mm)
-7.24"
(-183.90mm)
9th Driest Driest since: 1935 1956
115th Wettest Wettest since: 1939 1994
May 1938–Apr 1940
24-Month
59.59"
(1,513.59mm)
64.29"
(1,632.97mm)
-4.70"
(-119.38mm)
29th Driest Driest since: 1938 1957
95th Wettest Wettest since: 1939 2017
May 1937–Apr 1940
36-Month
86.99"
(2,209.55mm)
96.34"
(2,447.04mm)
-9.35"
(-237.49mm)
13th Driest Driest since: 1936 1958
110th Wettest Wettest since: 1939 2011
May 1936–Apr 1940
48-Month
115.54"
(2,934.72mm)
128.30"
(3,258.82mm)
-12.76"
(-324.10mm)
10th Driest Driest since: 1937 1957
112th Wettest Wettest since: 1939 2011
May 1935–Apr 1940
60-Month
147.54"
(3,747.52mm)
160.29"
(4,071.37mm)
-12.75"
(-323.85mm)
14th Driest Driest since: 1938 1958
107th Wettest Wettest since: 1939 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 26, 2020 from https://www.ncdc.noaa.gov/cag/