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 May 2022. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, January 1900

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 1900
1-Month
0.50"
(12.70mm)
0.98"
(24.89mm)
-0.48"
(-12.19mm)
25th Driest Driest since: 1899 1981
104th Wettest Wettest since: 1898 1949
Ties: 1931, 1977
Dec 1899–Jan 1900
2-Month
2.09"
(53.09mm)
2.08"
(52.83mm)
0.01"
(0.26mm)
69th Driest Driest since: 1899 2003
59th Wettest Wettest since: 1898 2016
Nov 1899–Jan 1900
3-Month
3.28"
(83.31mm)
3.82"
(97.03mm)
-0.54"
(-13.72mm)
49th Driest Driest since: 1899 2003
79th Wettest Wettest since: 1898 1932
Oct 1899–Jan 1900
4-Month
5.11"
(129.79mm)
6.13"
(155.70mm)
-1.02"
(-25.91mm)
42nd Driest Driest since: 1898 1911
86th Wettest Wettest since: 1899 1932
Sep 1899–Jan 1900
5-Month
6.07"
(154.18mm)
9.83"
(249.68mm)
-3.76"
(-95.50mm)
12th Driest Driest to Date 1977
116th Wettest Wettest since: 1899 1932
Aug 1899–Jan 1900
6-Month
9.61"
(244.09mm)
13.69"
(347.73mm)
-4.08"
(-103.64mm)
13th Driest Driest since: 1898 1977
115th Wettest Wettest since: 1899 2019
Jul 1899–Jan 1900
7-Month
12.71"
(322.83mm)
17.57"
(446.28mm)
-4.86"
(-123.45mm)
14th Driest Driest since: 1898 1977
114th Wettest Wettest since: 1899 2019
Jun 1899–Jan 1900
8-Month
17.88"
(454.15mm)
22.18"
(563.37mm)
-4.30"
(-109.22mm)
21st Driest Driest since: 1898 1977
107th Wettest Wettest since: 1899 2019
May 1899–Jan 1900
9-Month
23.92"
(607.57mm)
26.22"
(665.99mm)
-2.30"
(-58.42mm)
39th Driest Driest since: 1899 1977
89th Wettest Wettest since: 1897 1994
Apr 1899–Jan 1900
10-Month
26.29"
(667.77mm)
29.17"
(740.92mm)
-2.88"
(-73.15mm)
36th Driest Driest since: 1899 1911
92nd Wettest Wettest since: 1897 1994
Mar 1899–Jan 1900
11-Month
27.87"
(707.90mm)
31.14"
(790.96mm)
-3.27"
(-83.06mm)
34th Driest Driest since: 1899 1911
94th Wettest Wettest since: 1897 1994
Feb 1899–Jan 1900
12-Month
28.71"
(729.23mm)
32.15"
(816.61mm)
-3.44"
(-87.38mm)
28th Driest Driest since: 1898 1911
100th Wettest Wettest since: 1899 1994
Ties: 1913
Aug 1898–Jan 1900
18-Month
40.47"
(1,027.94mm)
45.86"
(1,164.84mm)
-5.39"
(-136.90mm)
23rd Driest Driest since: 1899 1957
104th Wettest Wettest since: 1898 2020
Feb 1898–Jan 1900
24-Month
57.49"
(1,460.25mm)
64.28"
(1,632.71mm)
-6.79"
(-172.46mm)
20th Driest Driest since: 1899 1990
107th Wettest Wettest since: 1898 2020
Feb 1897–Jan 1900
36-Month
83.43"
(2,119.12mm)
96.29"
(2,445.77mm)
-12.86"
(-326.65mm)
8th Driest Driest to Date 1958
118th Wettest Wettest since: 1899 2011
Feb 1896–Jan 1900
48-Month
121.58"
(3,088.13mm)
128.27"
(3,258.06mm)
-6.69"
(-169.93mm)
26th Driest Driest since: 1899 1959
99th Wettest Wettest to Date 2011
Feb 1895–Jan 1900
60-Month
147.53"
(3,747.26mm)
160.30"
(4,071.62mm)
-12.77"
(-324.36mm)
13th Driest Driest to Date 1957
111th Wettest Wettest to Date 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2022, retrieved on July 6, 2022 from https://www.ncei.noaa.gov/cag/