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 2021. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 2001

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 2001
1-Month
4.07"
(103.38mm)
3.67"
(93.22mm)
0.40"
(10.16mm)
81st Driest Driest since: 2000 1939
46th Wettest Wettest since: 1992 1965
Ties: 2020
Aug–Sep 2001
2-Month
7.04"
(178.82mm)
7.51"
(190.75mm)
-0.47"
(-11.93mm)
54th Driest Driest since: 2000 1976
73rd Wettest Wettest since: 1998 2018
Jul–Sep 2001
3-Month
10.16"
(258.06mm)
11.36"
(288.54mm)
-1.20"
(-30.48mm)
45th Driest Driest since: 2000 2013
82nd Wettest Wettest since: 1999 1993
Ties: 1999
Jun–Sep 2001
4-Month
14.23"
(361.44mm)
16.00"
(406.40mm)
-1.77"
(-44.96mm)
40th Driest Driest since: 1997 2012
87th Wettest Wettest since: 2000 1993
May–Sep 2001
5-Month
21.27"
(540.26mm)
20.04"
(509.02mm)
1.23"
(31.24mm)
80th Driest Driest since: 2000 1976
47th Wettest Wettest since: 1998 1993
Ties: 1954
Apr–Sep 2001
6-Month
24.87"
(631.70mm)
22.99"
(583.95mm)
1.88"
(47.75mm)
89th Driest Driest since: 2000 1988
38th Wettest Wettest since: 1999 1993
Mar–Sep 2001
7-Month
26.17"
(664.72mm)
24.94"
(633.48mm)
1.23"
(31.24mm)
78th Driest Driest since: 2000 1988
49th Wettest Wettest since: 1999 1993
Feb–Sep 2001
8-Month
28.33"
(719.58mm)
25.96"
(659.38mm)
2.37"
(60.20mm)
87th Driest Driest since: 2000 1988
40th Wettest Wettest since: 1999 1993
Jan–Sep 2001
9-Month
29.75"
(755.65mm)
26.93"
(684.02mm)
2.82"
(71.63mm)
94th Driest Driest since: 2000 1988
33rd Wettest Wettest since: 1999 1993
Dec 2000–Sep 2001
10-Month
31.42"
(798.07mm)
28.04"
(712.22mm)
3.38"
(85.85mm)
96th Driest Driest since: 2000 1988
30th Wettest Wettest since: 1998 1993
Nov 2000–Sep 2001
11-Month
33.57"
(852.68mm)
29.78"
(756.41mm)
3.79"
(96.27mm)
98th Driest Driest since: 2000 1934
28th Wettest Wettest since: 1998 1993
Oct 2000–Sep 2001
12-Month
35.37"
(898.40mm)
32.09"
(815.09mm)
3.28"
(83.31mm)
90th Driest Driest since: 2000 1934
36th Wettest Wettest since: 1999 1993
Apr 2000–Sep 2001
18-Month
56.38"
(1,432.05mm)
55.13"
(1,400.30mm)
1.25"
(31.75mm)
69th Driest Driest since: 2000 1934
57th Wettest Wettest since: 1999 1993
Oct 1999–Sep 2001
24-Month
61.98"
(1,574.29mm)
64.26"
(1,632.20mm)
-2.28"
(-57.91mm)
49th Driest Driest since: 1997 1956
76th Wettest Wettest since: 2000 1993
Oct 1998–Sep 2001
36-Month
98.62"
(2,504.95mm)
96.36"
(2,447.54mm)
2.26"
(57.41mm)
72nd Driest Driest since: 1997 1957
52nd Wettest Wettest since: 2000 2010
Oct 1997–Sep 2001
48-Month
136.72"
(3,472.69mm)
128.36"
(3,260.34mm)
8.36"
(212.35mm)
94th Driest Driest since: 2000 1958
29th Wettest Wettest since: 1996 2010
Oct 1996–Sep 2001
60-Month
166.80"
(4,236.72mm)
160.34"
(4,072.64mm)
6.46"
(164.08mm)
82nd Driest Driest since: 2000 1957
40th Wettest Wettest since: 1999 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 17, 2021 from https://www.ncdc.noaa.gov/cag/