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 2021. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 1987

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1987
1-Month
2.58"
(65.53mm)
3.67"
(93.22mm)
-1.09"
(-27.69mm)
42nd Driest Driest since: 1984 1939
86th Wettest Wettest since: 1986 1965
Aug–Sep 1987
2-Month
10.24"
(260.10mm)
7.51"
(190.75mm)
2.73"
(69.35mm)
112th Driest Driest since: 1985 1976
16th Wettest Wettest since: 1986 2018
Jul–Sep 1987
3-Month
15.45"
(392.43mm)
11.36"
(288.54mm)
4.09"
(103.89mm)
112th Driest Driest since: 1985 2013
16th Wettest Wettest since: 1986 1993
Jun–Sep 1987
4-Month
17.99"
(456.95mm)
16.00"
(406.40mm)
1.99"
(50.55mm)
94th Driest Driest since: 1985 2012
34th Wettest Wettest since: 1986 1993
May–Sep 1987
5-Month
21.96"
(557.78mm)
20.04"
(509.02mm)
1.92"
(48.76mm)
91st Driest Driest since: 1985 1976
37th Wettest Wettest since: 1986 1993
Apr–Sep 1987
6-Month
23.88"
(606.55mm)
22.99"
(583.95mm)
0.89"
(22.60mm)
73rd Driest Driest since: 1985 1988
55th Wettest Wettest since: 1986 1993
Mar–Sep 1987
7-Month
27.05"
(687.07mm)
24.94"
(633.48mm)
2.11"
(53.59mm)
89th Driest Driest since: 1985 1988
39th Wettest Wettest since: 1986 1993
Feb–Sep 1987
8-Month
27.31"
(693.67mm)
25.96"
(659.38mm)
1.35"
(34.29mm)
80th Driest Driest since: 1985 1988
48th Wettest Wettest since: 1986 1993
Jan–Sep 1987
9-Month
27.63"
(701.80mm)
26.93"
(684.02mm)
0.70"
(17.78mm)
75th Driest Driest since: 1985 1988
53rd Wettest Wettest since: 1986 1993
Ties: 1926
Dec 1986–Sep 1987
10-Month
28.44"
(722.38mm)
28.04"
(712.22mm)
0.40"
(10.16mm)
68th Driest Driest since: 1985 1988
59th Wettest Wettest since: 1986 1993
Nov 1986–Sep 1987
11-Month
29.59"
(751.59mm)
29.78"
(756.41mm)
-0.19"
(-4.82mm)
63rd Driest Driest since: 1985 1934
64th Wettest Wettest since: 1986 1993
Oct 1986–Sep 1987
12-Month
33.36"
(847.34mm)
32.09"
(815.09mm)
1.27"
(32.25mm)
77th Driest Driest since: 1981 1934
50th Wettest Wettest since: 1986 1993
Apr 1986–Sep 1987
18-Month
63.96"
(1,624.58mm)
55.13"
(1,400.30mm)
8.83"
(224.28mm)
114th Driest Driest since: 1986 1934
13th Wettest Wettest since: 1973 1993
Oct 1985–Sep 1987
24-Month
74.20"
(1,884.68mm)
64.26"
(1,632.20mm)
9.94"
(252.48mm)
108th Driest Driest since: 1985 1956
18th Wettest Wettest since: 1986 1993
Oct 1984–Sep 1987
36-Month
108.07"
(2,744.98mm)
96.36"
(2,447.54mm)
11.71"
(297.44mm)
107th Driest Driest since: 1985 1957
18th Wettest Wettest since: 1986 2010
Oct 1983–Sep 1987
48-Month
144.76"
(3,676.90mm)
128.36"
(3,260.34mm)
16.40"
(416.56mm)
106th Driest Driest since: 1984 1958
18th Wettest Wettest since: 1986 2010
Oct 1982–Sep 1987
60-Month
181.78"
(4,617.21mm)
160.34"
(4,072.64mm)
21.44"
(544.57mm)
109th Driest Driest since: 1985 1957
14th Wettest Wettest since: 1986 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 20, 2022 from https://www.ncdc.noaa.gov/cag/