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 1971

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1971
1-Month
2.42"
(61.47mm)
3.67"
(93.22mm)
-1.25"
(-31.75mm)
38th Driest Driest since: 1969 1939
90th Wettest Wettest since: 1970 1965
Aug–Sep 1971
2-Month
3.66"
(92.96mm)
7.51"
(190.75mm)
-3.85"
(-97.79mm)
6th Driest Driest since: 1953 1976
122nd Wettest Wettest since: 1970 2018
Jul–Sep 1971
3-Month
7.09"
(180.09mm)
11.36"
(288.54mm)
-4.27"
(-108.45mm)
8th Driest Driest since: 1953 2013
120th Wettest Wettest since: 1970 1993
Jun–Sep 1971
4-Month
11.59"
(294.39mm)
16.00"
(406.40mm)
-4.41"
(-112.01mm)
8th Driest Driest since: 1955 2012
120th Wettest Wettest since: 1970 1993
May–Sep 1971
5-Month
15.16"
(385.06mm)
20.04"
(509.02mm)
-4.88"
(-123.96mm)
10th Driest Driest since: 1955 1976
118th Wettest Wettest since: 1970 1993
Apr–Sep 1971
6-Month
16.53"
(419.86mm)
22.99"
(583.95mm)
-6.46"
(-164.09mm)
5th Driest Driest since: 1910 1988
123rd Wettest Wettest since: 1970 1993
Mar–Sep 1971
7-Month
17.44"
(442.98mm)
24.94"
(633.48mm)
-7.50"
(-190.50mm)
3rd Driest Driest since: 1910 1988
125th Wettest Wettest since: 1970 1993
Feb–Sep 1971
8-Month
19.86"
(504.44mm)
25.96"
(659.38mm)
-6.10"
(-154.94mm)
5th Driest Driest since: 1955 1988
123rd Wettest Wettest since: 1970 1993
Ties: 1955
Jan–Sep 1971
9-Month
20.95"
(532.13mm)
26.93"
(684.02mm)
-5.98"
(-151.89mm)
8th Driest Driest since: 1956 1988
120th Wettest Wettest since: 1970 1993
Dec 1970–Sep 1971
10-Month
22.07"
(560.58mm)
28.04"
(712.22mm)
-5.97"
(-151.64mm)
8th Driest Driest since: 1956 1988
119th Wettest Wettest since: 1970 1993
Nov 1970–Sep 1971
11-Month
23.76"
(603.50mm)
29.78"
(756.41mm)
-6.02"
(-152.91mm)
8th Driest Driest since: 1956 1934
119th Wettest Wettest since: 1970 1993
Oct 1970–Sep 1971
12-Month
27.82"
(706.63mm)
32.09"
(815.09mm)
-4.27"
(-108.46mm)
24th Driest Driest since: 1966 1934
103rd Wettest Wettest since: 1970 1993
Apr 1970–Sep 1971
18-Month
51.83"
(1,316.48mm)
55.13"
(1,400.30mm)
-3.30"
(-83.82mm)
35th Driest Driest since: 1967 1934
92nd Wettest Wettest since: 1970 1993
Oct 1969–Sep 1971
24-Month
59.81"
(1,519.17mm)
64.26"
(1,632.20mm)
-4.45"
(-113.03mm)
31st Driest Driest since: 1968 1956
95th Wettest Wettest since: 1970 1993
Oct 1968–Sep 1971
36-Month
95.99"
(2,438.15mm)
96.36"
(2,447.54mm)
-0.37"
(-9.39mm)
58th Driest Driest since: 1969 1957
67th Wettest Wettest since: 1970 2010
Oct 1967–Sep 1971
48-Month
126.78"
(3,220.21mm)
128.36"
(3,260.34mm)
-1.58"
(-40.13mm)
50th Driest Driest since: 1969 1958
74th Wettest Wettest since: 1970 2010
Oct 1966–Sep 1971
60-Month
155.34"
(3,945.64mm)
160.34"
(4,072.64mm)
-5.00"
(-127.00mm)
33rd Driest Driest since: 1970 1957
90th Wettest Wettest since: 1969 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 6, 2022 from https://www.ncdc.noaa.gov/cag/