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 1918

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1918
1-Month
1.84"
(46.74mm)
3.67"
(93.22mm)
-1.83"
(-46.48mm)
19th Driest Driest since: 1908 1939
109th Wettest Wettest since: 1917 1965
Ties: 1999
Aug–Sep 1918
2-Month
5.43"
(137.92mm)
7.51"
(190.75mm)
-2.08"
(-52.83mm)
24th Driest Driest since: 1917 1976
104th Wettest Wettest since: 1916 2018
Jul–Sep 1918
3-Month
8.74"
(222.00mm)
11.36"
(288.54mm)
-2.62"
(-66.54mm)
27th Driest Driest since: 1917 2013
101st Wettest Wettest since: 1915 1993
Jun–Sep 1918
4-Month
13.94"
(354.08mm)
16.00"
(406.40mm)
-2.06"
(-52.32mm)
38th Driest Driest since: 1916 2012
90th Wettest Wettest since: 1917 1993
May–Sep 1918
5-Month
20.79"
(528.07mm)
20.04"
(509.02mm)
0.75"
(19.05mm)
71st Driest Driest since: 1917 1976
57th Wettest Wettest since: 1915 1993
Apr–Sep 1918
6-Month
23.09"
(586.49mm)
22.99"
(583.95mm)
0.10"
(2.54mm)
65th Driest Driest since: 1917 1988
63rd Wettest Wettest since: 1915 1993
Mar–Sep 1918
7-Month
23.74"
(603.00mm)
24.94"
(633.48mm)
-1.20"
(-30.48mm)
51st Driest Driest since: 1916 1988
77th Wettest Wettest since: 1917 1993
Feb–Sep 1918
8-Month
24.70"
(627.38mm)
25.96"
(659.38mm)
-1.26"
(-32.00mm)
51st Driest Driest since: 1917 1988
77th Wettest Wettest since: 1915 1993
Ties: 2005
Jan–Sep 1918
9-Month
25.68"
(652.27mm)
26.93"
(684.02mm)
-1.25"
(-31.75mm)
52nd Driest Driest since: 1917 1988
76th Wettest Wettest since: 1915 1993
Dec 1917–Sep 1918
10-Month
26.23"
(666.24mm)
28.04"
(712.22mm)
-1.81"
(-45.98mm)
44th Driest Driest since: 1916 1988
83rd Wettest Wettest since: 1917 1993
Nov 1917–Sep 1918
11-Month
26.50"
(673.10mm)
29.78"
(756.41mm)
-3.28"
(-83.31mm)
32nd Driest Driest since: 1916 1934
95th Wettest Wettest since: 1917 1993
Oct 1917–Sep 1918
12-Month
27.84"
(707.14mm)
32.09"
(815.09mm)
-4.25"
(-107.95mm)
25th Driest Driest since: 1916 1934
102nd Wettest Wettest since: 1917 1993
Apr 1917–Sep 1918
18-Month
50.30"
(1,277.62mm)
55.13"
(1,400.30mm)
-4.83"
(-122.68mm)
27th Driest Driest since: 1917 1934
100th Wettest Wettest since: 1916 1993
Oct 1916–Sep 1918
24-Month
57.99"
(1,472.95mm)
64.26"
(1,632.20mm)
-6.27"
(-159.25mm)
22nd Driest Driest since: 1917 1956
104th Wettest Wettest since: 1916 1993
Oct 1915–Sep 1918
36-Month
85.64"
(2,175.26mm)
96.36"
(2,447.54mm)
-10.72"
(-272.28mm)
11th Driest Driest since: 1912 1957
114th Wettest Wettest since: 1917 2010
Oct 1914–Sep 1918
48-Month
125.54"
(3,188.72mm)
128.36"
(3,260.34mm)
-2.82"
(-71.62mm)
46th Driest Driest since: 1914 1958
78th Wettest Wettest since: 1917 2010
Oct 1913–Sep 1918
60-Month
157.58"
(4,002.53mm)
160.34"
(4,072.64mm)
-2.76"
(-70.11mm)
43rd Driest Driest since: 1914 1957
80th Wettest Wettest since: 1917 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 3, 2022 from https://www.ncdc.noaa.gov/cag/