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, September 2017

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2017
1-Month
2.31"
(58.67mm)
3.67"
(93.22mm)
-1.36"
(-34.55mm)
36th Driest Driest since: 2013 1939
92nd Wettest Wettest since: 2016 1965
Aug–Sep 2017
2-Month
6.14"
(155.96mm)
7.51"
(190.75mm)
-1.37"
(-34.79mm)
40th Driest Driest since: 2013 1976
88th Wettest Wettest since: 2016 2018
Jul–Sep 2017
3-Month
9.08"
(230.63mm)
11.36"
(288.54mm)
-2.28"
(-57.91mm)
33rd Driest Driest since: 2013 2013
95th Wettest Wettest since: 2016 1993
Ties: 1927
Jun–Sep 2017
4-Month
12.58"
(319.53mm)
16.00"
(406.40mm)
-3.42"
(-86.87mm)
18th Driest Driest since: 2013 2012
110th Wettest Wettest since: 2016 1993
May–Sep 2017
5-Month
17.38"
(441.45mm)
20.04"
(509.02mm)
-2.66"
(-67.57mm)
30th Driest Driest since: 2012 1976
98th Wettest Wettest since: 2016 1993
Apr–Sep 2017
6-Month
21.18"
(537.97mm)
22.99"
(583.95mm)
-1.81"
(-45.98mm)
45th Driest Driest since: 2012 1988
83rd Wettest Wettest since: 2016 1993
Ties: 1899
Mar–Sep 2017
7-Month
23.75"
(603.25mm)
24.94"
(633.48mm)
-1.19"
(-30.23mm)
52nd Driest Driest since: 2012 1988
76th Wettest Wettest since: 2016 1993
Feb–Sep 2017
8-Month
24.74"
(628.40mm)
25.96"
(659.38mm)
-1.22"
(-30.98mm)
53rd Driest Driest since: 2012 1988
75th Wettest Wettest since: 2016 1993
Jan–Sep 2017
9-Month
26.30"
(668.02mm)
26.93"
(684.02mm)
-0.63"
(-16.00mm)
57th Driest Driest since: 2012 1988
71st Wettest Wettest since: 2016 1993
Ties: 1981
Dec 2016–Sep 2017
10-Month
27.82"
(706.63mm)
28.04"
(712.22mm)
-0.22"
(-5.59mm)
60th Driest Driest since: 2012 1988
67th Wettest Wettest since: 2016 1993
Nov 2016–Sep 2017
11-Month
29.21"
(741.93mm)
29.78"
(756.41mm)
-0.57"
(-14.48mm)
57th Driest Driest since: 2012 1934
70th Wettest Wettest since: 2016 1993
Oct 2016–Sep 2017
12-Month
31.22"
(792.99mm)
32.09"
(815.09mm)
-0.87"
(-22.10mm)
54th Driest Driest since: 2012 1934
73rd Wettest Wettest since: 2016 1993
Apr 2016–Sep 2017
18-Month
60.65"
(1,540.51mm)
55.13"
(1,400.30mm)
5.52"
(140.21mm)
95th Driest Driest since: 2013 1934
32nd Wettest Wettest since: 2016 1993
Oct 2015–Sep 2017
24-Month
74.95"
(1,903.73mm)
64.26"
(1,632.20mm)
10.69"
(271.53mm)
113th Driest Driest since: 2014 1956
13th Wettest Wettest since: 2016 1993
Oct 2014–Sep 2017
36-Month
111.96"
(2,843.78mm)
96.36"
(2,447.54mm)
15.60"
(396.24mm)
112th Driest Driest since: 2015 1957
13th Wettest Wettest since: 2016 2010
Oct 2013–Sep 2017
48-Month
150.61"
(3,825.49mm)
128.36"
(3,260.34mm)
22.25"
(565.15mm)
115th Driest Driest since: 2015 1958
9th Wettest Wettest since: 2016 2010
Oct 2012–Sep 2017
60-Month
185.62"
(4,714.75mm)
160.34"
(4,072.64mm)
25.28"
(642.11mm)
113th Driest Driest since: 2016 1957
10th Wettest Wettest since: 2012 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2022, retrieved on July 5, 2022 from https://www.ncei.noaa.gov/cag/