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 2022. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 1930

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1930
1-Month
2.44"
(61.98mm)
3.67"
(93.22mm)
-1.23"
(-31.24mm)
39th Driest Driest since: 1922 1939
89th Wettest Wettest since: 1929 1965
Aug–Sep 1930
2-Month
4.79"
(121.67mm)
7.51"
(190.75mm)
-2.72"
(-69.08mm)
16th Driest Driest since: 1899 1976
112th Wettest Wettest since: 1929 2018
Jul–Sep 1930
3-Month
6.31"
(160.27mm)
11.36"
(288.54mm)
-5.05"
(-128.27mm)
5th Driest Driest since: 1930 2013
123rd Wettest Wettest since: 1929 1993
Jun–Sep 1930
4-Month
12.01"
(305.05mm)
16.00"
(406.40mm)
-3.99"
(-101.35mm)
14th Driest Driest since: 1927 2012
114th Wettest Wettest since: 1929 1993
May–Sep 1930
5-Month
15.77"
(400.56mm)
20.04"
(509.02mm)
-4.27"
(-108.46mm)
13th Driest Driest since: 1929 1976
115th Wettest Wettest since: 1928 1993
Apr–Sep 1930
6-Month
18.51"
(470.15mm)
22.99"
(583.95mm)
-4.48"
(-113.80mm)
16th Driest Driest since: 1910 1988
112th Wettest Wettest since: 1929 1993
Mar–Sep 1930
7-Month
19.40"
(492.76mm)
24.94"
(633.48mm)
-5.54"
(-140.72mm)
11th Driest Driest since: 1910 1988
117th Wettest Wettest since: 1929 1993
Feb–Sep 1930
8-Month
20.06"
(509.52mm)
25.96"
(659.38mm)
-5.90"
(-149.86mm)
9th Driest Driest since: 1910 1988
119th Wettest Wettest since: 1929 1993
Jan–Sep 1930
9-Month
21.35"
(542.29mm)
26.93"
(684.02mm)
-5.58"
(-141.73mm)
9th Driest Driest since: 1910 1988
119th Wettest Wettest since: 1929 1993
Dec 1929–Sep 1930
10-Month
21.75"
(552.45mm)
28.04"
(712.22mm)
-6.29"
(-159.77mm)
7th Driest Driest since: 1910 1988
120th Wettest Wettest since: 1929 1993
Nov 1929–Sep 1930
11-Month
22.93"
(582.42mm)
29.78"
(756.41mm)
-6.85"
(-173.99mm)
6th Driest Driest since: 1901 1934
121st Wettest Wettest since: 1929 1993
Oct 1929–Sep 1930
12-Month
25.87"
(657.10mm)
32.09"
(815.09mm)
-6.22"
(-157.99mm)
6th Driest Driest since: 1911 1934
121st Wettest Wettest since: 1929 1993
Apr 1929–Sep 1930
18-Month
46.08"
(1,170.43mm)
55.13"
(1,400.30mm)
-9.05"
(-229.87mm)
8th Driest Driest since: 1911 1934
119th Wettest Wettest since: 1929 1993
Oct 1928–Sep 1930
24-Month
59.08"
(1,500.63mm)
64.26"
(1,632.20mm)
-5.18"
(-131.57mm)
27th Driest Driest since: 1926 1956
99th Wettest Wettest since: 1929 1993
Oct 1927–Sep 1930
36-Month
91.46"
(2,323.08mm)
96.36"
(2,447.54mm)
-4.90"
(-124.46mm)
33rd Driest Driest since: 1927 1957
92nd Wettest Wettest since: 1929 2010
Oct 1926–Sep 1930
48-Month
120.27"
(3,054.86mm)
128.36"
(3,260.34mm)
-8.09"
(-205.48mm)
23rd Driest Driest since: 1928 1958
101st Wettest Wettest since: 1929 2010
Oct 1925–Sep 1930
60-Month
152.86"
(3,882.64mm)
160.34"
(4,072.64mm)
-7.48"
(-190.00mm)
24th Driest Driest since: 1928 1957
99th Wettest Wettest since: 1929 2010

Citing This Page

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