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 December 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 1989

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
September 1989
1-Month
4.84"
(122.94mm)
3.67"
(93.22mm)
1.17"
(29.72mm)
97th Driest Driest since: 1988 1939
29th Wettest Wettest since: 1986 1965
Aug–Sep 1989
2-Month
8.42"
(213.87mm)
7.51"
(190.75mm)
0.91"
(23.12mm)
83rd Driest Driest since: 1988 1976
43rd Wettest Wettest since: 1987 2018
Jul–Sep 1989
3-Month
11.76"
(298.70mm)
11.36"
(288.54mm)
0.40"
(10.16mm)
73rd Driest Driest since: 1988 2013
53rd Wettest Wettest since: 1987 1993
Ties: 2002
Jun–Sep 1989
4-Month
15.12"
(384.05mm)
16.00"
(406.40mm)
-0.88"
(-22.35mm)
54th Driest Driest since: 1988 2012
72nd Wettest Wettest since: 1987 1993
Ties: 1945
May–Sep 1989
5-Month
17.69"
(449.33mm)
20.04"
(509.02mm)
-2.35"
(-59.69mm)
36th Driest Driest since: 1988 1976
90th Wettest Wettest since: 1987 1993
Apr–Sep 1989
6-Month
19.78"
(502.41mm)
22.99"
(583.95mm)
-3.21"
(-81.54mm)
23rd Driest Driest since: 1988 1988
103rd Wettest Wettest since: 1987 1993
Mar–Sep 1989
7-Month
20.68"
(525.27mm)
24.94"
(633.48mm)
-4.26"
(-108.21mm)
19th Driest Driest since: 1988 1988
107th Wettest Wettest since: 1987 1993
Feb–Sep 1989
8-Month
21.22"
(538.99mm)
25.96"
(659.38mm)
-4.74"
(-120.39mm)
15th Driest Driest since: 1988 1988
111th Wettest Wettest since: 1987 1993
Jan–Sep 1989
9-Month
22.14"
(562.36mm)
26.93"
(684.02mm)
-4.79"
(-121.66mm)
14th Driest Driest since: 1988 1988
112th Wettest Wettest since: 1987 1993
Dec 1988–Sep 1989
10-Month
22.94"
(582.68mm)
28.04"
(712.22mm)
-5.10"
(-129.54mm)
13th Driest Driest since: 1988 1988
112th Wettest Wettest since: 1987 1993
Nov 1988–Sep 1989
11-Month
25.55"
(648.97mm)
29.78"
(756.41mm)
-4.23"
(-107.44mm)
20th Driest Driest since: 1988 1934
105th Wettest Wettest since: 1987 1993
Oct 1988–Sep 1989
12-Month
26.20"
(665.48mm)
32.09"
(815.09mm)
-5.89"
(-149.61mm)
11th Driest Driest since: 1988 1934
114th Wettest Wettest since: 1987 1993
Ties: 1966, 1976
Apr 1988–Sep 1989
18-Month
41.60"
(1,056.64mm)
55.13"
(1,400.30mm)
-13.53"
(-343.66mm)
3rd Driest Driest since: 1956 1934
122nd Wettest Wettest since: 1988 1993
Oct 1987–Sep 1989
24-Month
48.84"
(1,240.54mm)
64.26"
(1,632.20mm)
-15.42"
(-391.66mm)
2nd Driest Driest since: 1956 1956
122nd Wettest Wettest since: 1988 1993
Oct 1986–Sep 1989
36-Month
82.20"
(2,087.88mm)
96.36"
(2,447.54mm)
-14.16"
(-359.66mm)
5th Driest Driest since: 1958 1957
118th Wettest Wettest since: 1988 2010
Oct 1985–Sep 1989
48-Month
123.04"
(3,125.22mm)
128.36"
(3,260.34mm)
-5.32"
(-135.12mm)
34th Driest Driest since: 1977 1958
88th Wettest Wettest since: 1988 2010
Oct 1984–Sep 1989
60-Month
156.91"
(3,985.51mm)
160.34"
(4,072.64mm)
-3.43"
(-87.13mm)
41st Driest Driest since: 1971 1957
80th Wettest Wettest since: 1988 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 24, 2020 from https://www.ncdc.noaa.gov/cag/