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 June 2021. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 2006

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 2006
1-Month
4.22"
(107.19mm)
3.67"
(93.22mm)
0.55"
(13.97mm)
89th Driest Driest since: 2005 1939
38th Wettest Wettest since: 1992 1965
Aug–Sep 2006
2-Month
9.97"
(253.24mm)
7.51"
(190.75mm)
2.46"
(62.49mm)
107th Driest Driest since: 2005 1976
20th Wettest Wettest since: 1993 2018
Jul–Sep 2006
3-Month
13.19"
(335.03mm)
11.36"
(288.54mm)
1.83"
(46.49mm)
96th Driest Driest since: 2005 2013
31st Wettest Wettest since: 1993 1993
Jun–Sep 2006
4-Month
15.68"
(398.27mm)
16.00"
(406.40mm)
-0.32"
(-8.13mm)
65th Driest Driest since: 2005 2012
62nd Wettest Wettest since: 1998 1993
May–Sep 2006
5-Month
18.12"
(460.25mm)
20.04"
(509.02mm)
-1.92"
(-48.77mm)
41st Driest Driest since: 2003 1976
86th Wettest Wettest since: 2005 1993
Apr–Sep 2006
6-Month
22.42"
(569.47mm)
22.99"
(583.95mm)
-0.57"
(-14.48mm)
54th Driest Driest since: 2005 1988
73rd Wettest Wettest since: 2004 1993
Mar–Sep 2006
7-Month
25.59"
(649.99mm)
24.94"
(633.48mm)
0.65"
(16.51mm)
68th Driest Driest since: 2005 1988
59th Wettest Wettest since: 2004 1993
Feb–Sep 2006
8-Month
25.91"
(658.11mm)
25.96"
(659.38mm)
-0.05"
(-1.27mm)
62nd Driest Driest since: 2005 1988
65th Wettest Wettest since: 2004 1993
Jan–Sep 2006
9-Month
26.90"
(683.26mm)
26.93"
(684.02mm)
-0.03"
(-0.76mm)
63rd Driest Driest since: 2005 1988
64th Wettest Wettest since: 2004 1993
Dec 2005–Sep 2006
10-Month
28.07"
(712.98mm)
28.04"
(712.22mm)
0.03"
(0.76mm)
63rd Driest Driest since: 2005 1988
63rd Wettest Wettest since: 2004 1993
Nov 2005–Sep 2006
11-Month
29.82"
(757.43mm)
29.78"
(756.41mm)
0.04"
(1.02mm)
66th Driest Driest since: 2005 1934
60th Wettest Wettest since: 2004 1993
Oct 2005–Sep 2006
12-Month
30.73"
(780.54mm)
32.09"
(815.09mm)
-1.36"
(-34.55mm)
46th Driest Driest since: 2003 1934
80th Wettest Wettest since: 2005 1993
Apr 2005–Sep 2006
18-Month
52.86"
(1,342.64mm)
55.13"
(1,400.30mm)
-2.27"
(-57.66mm)
40th Driest Driest since: 2003 1934
86th Wettest Wettest since: 2005 1993
Oct 2004–Sep 2006
24-Month
61.58"
(1,564.13mm)
64.26"
(1,632.20mm)
-2.68"
(-68.07mm)
45th Driest Driest since: 2003 1956
80th Wettest Wettest since: 2005 1993
Ties: 1997
Oct 2003–Sep 2006
36-Month
97.89"
(2,486.41mm)
96.36"
(2,447.54mm)
1.53"
(38.87mm)
68th Driest Driest since: 2005 1957
56th Wettest Wettest since: 2001 2010
Oct 2002–Sep 2006
48-Month
124.88"
(3,171.95mm)
128.36"
(3,260.34mm)
-3.48"
(-88.39mm)
42nd Driest Driest since: 2005 1958
81st Wettest Wettest since: 2004 2010
Oct 2001–Sep 2006
60-Month
155.16"
(3,941.06mm)
160.34"
(4,072.64mm)
-5.18"
(-131.58mm)
32nd Driest Driest since: 1991 1957
90th Wettest Wettest since: 2005 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on August 2, 2021 from https://www.ncdc.noaa.gov/cag/