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, August 2009

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
(1895-2021)
Wettest/Driest
Since
Record
August 2009
1-Month
5.75"
(146.05mm)
3.84"
(97.54mm)
1.91"
(48.51mm)
110th Driest Driest since: 2008 1984
18th Wettest Wettest since: 2007 2007
Ties: 2006
Jul–Aug 2009
2-Month
10.37"
(263.40mm)
7.70"
(195.58mm)
2.67"
(67.82mm)
106th Driest Driest since: 2008 1947
22nd Wettest Wettest since: 2007 1993
Jun–Aug 2009
3-Month
15.66"
(397.76mm)
12.33"
(313.18mm)
3.33"
(84.58mm)
111th Driest Driest since: 2006 1927
17th Wettest Wettest since: 2008 1993
May–Aug 2009
4-Month
19.30"
(490.22mm)
16.38"
(416.05mm)
2.92"
(74.17mm)
103rd Driest Driest since: 2006 1936
25th Wettest Wettest since: 2008 1993
Apr–Aug 2009
5-Month
22.90"
(581.66mm)
19.32"
(490.73mm)
3.58"
(90.93mm)
104th Driest Driest since: 2006 1936
24th Wettest Wettest since: 2008 1993
Mar–Aug 2009
6-Month
25.87"
(657.10mm)
21.28"
(540.51mm)
4.59"
(116.59mm)
110th Driest Driest since: 2006 1936
18th Wettest Wettest since: 2008 1993
Ties: 1896
Feb–Aug 2009
7-Month
26.66"
(677.16mm)
22.29"
(566.17mm)
4.37"
(110.99mm)
109th Driest Driest since: 2006 1988
19th Wettest Wettest since: 2008 1993
Jan–Aug 2009
8-Month
27.34"
(694.44mm)
23.27"
(591.06mm)
4.07"
(103.38mm)
105th Driest Driest since: 2006 1988
23rd Wettest Wettest since: 2008 1993
Dec 2008–Aug 2009
9-Month
29.22"
(742.19mm)
24.37"
(619.00mm)
4.85"
(123.19mm)
110th Driest Driest since: 2006 1988
17th Wettest Wettest since: 2008 1993
Nov 2008–Aug 2009
10-Month
30.94"
(785.88mm)
26.11"
(663.19mm)
4.83"
(122.69mm)
108th Driest Driest since: 2006 1934
19th Wettest Wettest since: 2008 1993
Oct 2008–Aug 2009
11-Month
34.20"
(868.68mm)
28.42"
(721.87mm)
5.78"
(146.81mm)
109th Driest Driest since: 2006 1934
18th Wettest Wettest since: 2008 1993
Sep 2008–Aug 2009
12-Month
38.36"
(974.34mm)
32.12"
(815.85mm)
6.24"
(158.49mm)
106th Driest Driest since: 2006 1934
21st Wettest Wettest since: 2008 1993
Mar 2008–Aug 2009
18-Month
67.87"
(1,723.90mm)
53.43"
(1,357.12mm)
14.44"
(366.78mm)
120th Driest Driest since: 2007 1911
7th Wettest Wettest since: 2008 1993
Sep 2007–Aug 2009
24-Month
80.85"
(2,053.59mm)
64.28"
(1,632.71mm)
16.57"
(420.88mm)
118th Driest Driest since: 2007 1934
8th Wettest Wettest since: 2008 1993
Sep 2006–Aug 2009
36-Month
122.39"
(3,108.71mm)
96.39"
(2,448.31mm)
26.00"
(660.40mm)
123rd Driest Driest since: 2008 1957
2nd Wettest Wettest to Date 2010
Sep 2005–Aug 2009
48-Month
152.19"
(3,865.63mm)
128.37"
(3,260.60mm)
23.82"
(605.03mm)
119th Driest Driest since: 2008 1936
5th Wettest Wettest since: 1993 2010
Sep 2004–Aug 2009
60-Month
182.41"
(4,633.21mm)
160.37"
(4,073.40mm)
22.04"
(559.81mm)
111th Driest Driest since: 2008 1957
12th Wettest Wettest since: 1995 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2022, retrieved on July 7, 2022 from https://www.ncei.noaa.gov/cag/