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


Iowa

Precipitation Rankings, September 2019

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
(1895-2021)
Wettest/Driest
Since
Record
September 2019
1-Month
6.21"
(157.73mm)
3.67"
(93.22mm)
2.54"
(64.51mm)
116th Driest Driest since: 2017 1939
12th Wettest Wettest since: 2018 1965
Aug–Sep 2019
2-Month
9.74"
(247.40mm)
7.51"
(190.75mm)
2.23"
(56.65mm)
104th Driest Driest since: 2017 1976
24th Wettest Wettest since: 2018 2018
Jul–Sep 2019
3-Month
13.12"
(333.25mm)
11.36"
(288.54mm)
1.76"
(44.71mm)
95th Driest Driest since: 2017 2013
33rd Wettest Wettest since: 2018 1993
Jun–Sep 2019
4-Month
17.03"
(432.56mm)
16.00"
(406.40mm)
1.03"
(26.16mm)
78th Driest Driest since: 2017 2012
50th Wettest Wettest since: 2018 1993
May–Sep 2019
5-Month
25.24"
(641.10mm)
20.04"
(509.02mm)
5.20"
(132.08mm)
114th Driest Driest since: 2017 1976
14th Wettest Wettest since: 2018 1993
Apr–Sep 2019
6-Month
28.27"
(718.06mm)
22.99"
(583.95mm)
5.28"
(134.11mm)
111th Driest Driest since: 2017 1988
17th Wettest Wettest since: 2018 1993
Mar–Sep 2019
7-Month
30.46"
(773.68mm)
24.94"
(633.48mm)
5.52"
(140.20mm)
111th Driest Driest since: 2017 1988
17th Wettest Wettest since: 2018 1993
Feb–Sep 2019
8-Month
32.80"
(833.12mm)
25.96"
(659.38mm)
6.84"
(173.74mm)
114th Driest Driest since: 2017 1988
14th Wettest Wettest since: 2018 1993
Jan–Sep 2019
9-Month
34.08"
(865.63mm)
26.93"
(684.02mm)
7.15"
(181.61mm)
116th Driest Driest since: 2017 1988
12th Wettest Wettest since: 2018 1993
Dec 2018–Sep 2019
10-Month
36.18"
(918.97mm)
28.04"
(712.22mm)
8.14"
(206.75mm)
115th Driest Driest since: 2017 1988
12th Wettest Wettest since: 2018 1993
Nov 2018–Sep 2019
11-Month
37.99"
(964.95mm)
29.78"
(756.41mm)
8.21"
(208.54mm)
118th Driest Driest since: 2018 1934
9th Wettest Wettest since: 2016 1993
Oct 2018–Sep 2019
12-Month
42.62"
(1,082.55mm)
32.09"
(815.09mm)
10.53"
(267.46mm)
121st Driest Driest since: 2018 1934
6th Wettest Wettest since: 2016 1993
Apr 2018–Sep 2019
18-Month
74.32"
(1,887.73mm)
55.13"
(1,400.30mm)
19.19"
(487.43mm)
124th Driest Driest since: 2018 1934
3rd Wettest Wettest since: 2010 1993
Oct 2017–Sep 2019
24-Month
85.22"
(2,164.59mm)
64.26"
(1,632.20mm)
20.96"
(532.39mm)
123rd Driest Driest since: 2018 1956
3rd Wettest Wettest since: 2010 1993
Oct 2016–Sep 2019
36-Month
116.44"
(2,957.58mm)
96.36"
(2,447.54mm)
20.08"
(510.04mm)
116th Driest Driest since: 2017 1957
9th Wettest Wettest since: 2018 2010
Oct 2015–Sep 2019
48-Month
160.17"
(4,068.32mm)
128.36"
(3,260.34mm)
31.81"
(807.98mm)
121st Driest Driest since: 2018 1958
3rd Wettest Wettest since: 2011 2010
Oct 2014–Sep 2019
60-Month
197.18"
(5,008.37mm)
160.34"
(4,072.64mm)
36.84"
(935.73mm)
120th Driest Driest since: 2018 1957
3rd Wettest Wettest since: 2011 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 30, 2022 from https://www.ncdc.noaa.gov/cag/