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 1998

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 1998
1-Month
2.06"
(52.32mm)
3.67"
(93.22mm)
-1.61"
(-40.90mm)
23rd Driest Driest since: 1990 1939
104th Wettest Wettest since: 1997 1965
Aug–Sep 1998
2-Month
7.07"
(179.58mm)
7.51"
(190.75mm)
-0.44"
(-11.17mm)
55th Driest Driest since: 1997 1976
72nd Wettest Wettest since: 1994 2018
Jul–Sep 1998
3-Month
10.23"
(259.84mm)
11.36"
(288.54mm)
-1.13"
(-28.70mm)
48th Driest Driest since: 1997 2013
79th Wettest Wettest since: 1994 1993
Jun–Sep 1998
4-Month
18.14"
(460.76mm)
16.00"
(406.40mm)
2.14"
(54.36mm)
96th Driest Driest since: 1997 2012
31st Wettest Wettest since: 1993 1993
May–Sep 1998
5-Month
22.44"
(569.98mm)
20.04"
(509.02mm)
2.40"
(60.96mm)
96th Driest Driest since: 1997 1976
31st Wettest Wettest since: 1993 1993
Apr–Sep 1998
6-Month
26.38"
(670.05mm)
22.99"
(583.95mm)
3.39"
(86.10mm)
101st Driest Driest since: 1997 1988
26th Wettest Wettest since: 1993 1993
Mar–Sep 1998
7-Month
30.03"
(762.76mm)
24.94"
(633.48mm)
5.09"
(129.28mm)
108th Driest Driest since: 1997 1988
19th Wettest Wettest since: 1993 1993
Ties: 1938
Feb–Sep 1998
8-Month
31.66"
(804.16mm)
25.96"
(659.38mm)
5.70"
(144.78mm)
109th Driest Driest since: 1997 1988
18th Wettest Wettest since: 1993 1993
Jan–Sep 1998
9-Month
32.71"
(830.83mm)
26.93"
(684.02mm)
5.78"
(146.81mm)
110th Driest Driest since: 1997 1988
17th Wettest Wettest since: 1993 1993
Dec 1997–Sep 1998
10-Month
33.71"
(856.23mm)
28.04"
(712.22mm)
5.67"
(144.01mm)
109th Driest Driest since: 1997 1988
17th Wettest Wettest since: 1993 1993
Nov 1997–Sep 1998
11-Month
34.73"
(882.14mm)
29.78"
(756.41mm)
4.95"
(125.73mm)
106th Driest Driest since: 1997 1934
20th Wettest Wettest since: 1993 1993
Oct 1997–Sep 1998
12-Month
38.10"
(967.74mm)
32.09"
(815.09mm)
6.01"
(152.65mm)
108th Driest Driest since: 1997 1934
18th Wettest Wettest since: 1993 1993
Apr 1997–Sep 1998
18-Month
57.96"
(1,472.18mm)
55.13"
(1,400.30mm)
2.83"
(71.88mm)
82nd Driest Driest since: 1997 1934
44th Wettest Wettest since: 1994 1993
Oct 1996–Sep 1998
24-Month
68.18"
(1,731.77mm)
64.26"
(1,632.20mm)
3.92"
(99.57mm)
85th Driest Driest since: 1997 1956
40th Wettest Wettest since: 1994 1993
Oct 1995–Sep 1998
36-Month
99.68"
(2,531.87mm)
96.36"
(2,447.54mm)
3.32"
(84.33mm)
79th Driest Driest since: 1997 1957
45th Wettest Wettest since: 1995 2010
Oct 1994–Sep 1998
48-Month
133.17"
(3,382.52mm)
128.36"
(3,260.34mm)
4.81"
(122.18mm)
82nd Driest Driest since: 1997 1958
41st Wettest Wettest since: 1996 2010
Oct 1993–Sep 1998
60-Month
160.55"
(4,077.97mm)
160.34"
(4,072.64mm)
0.21"
(5.33mm)
62nd Driest Driest since: 1992 1957
60th Wettest Wettest since: 1997 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 20, 2021 from https://www.ncdc.noaa.gov/cag/