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 July 2022. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, September 1946

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1946
1-Month
5.02"
(127.51mm)
3.67"
(93.22mm)
1.35"
(34.29mm)
103rd Driest Driest since: 1945 1939
25th Wettest Wettest since: 1941 1965
Ties: 1900
Aug–Sep 1946
2-Month
8.62"
(218.95mm)
7.51"
(190.75mm)
1.11"
(28.20mm)
89th Driest Driest since: 1945 1976
39th Wettest Wettest since: 1941 2018
Jul–Sep 1946
3-Month
11.10"
(281.94mm)
11.36"
(288.54mm)
-0.26"
(-6.60mm)
63rd Driest Driest since: 1945 2013
65th Wettest Wettest since: 1944 1993
Jun–Sep 1946
4-Month
17.35"
(440.69mm)
16.00"
(406.40mm)
1.35"
(34.29mm)
83rd Driest Driest since: 1945 2012
45th Wettest Wettest since: 1944 1993
May–Sep 1946
5-Month
21.87"
(555.50mm)
20.04"
(509.02mm)
1.83"
(46.48mm)
89th Driest Driest since: 1945 1976
39th Wettest Wettest since: 1944 1993
Apr–Sep 1946
6-Month
23.01"
(584.45mm)
22.99"
(583.95mm)
0.02"
(0.50mm)
64th Driest Driest since: 1940 1988
64th Wettest Wettest since: 1945 1993
Mar–Sep 1946
7-Month
27.04"
(686.82mm)
24.94"
(633.48mm)
2.10"
(53.34mm)
88th Driest Driest since: 1943 1988
40th Wettest Wettest since: 1945 1993
Feb–Sep 1946
8-Month
27.41"
(696.21mm)
25.96"
(659.38mm)
1.45"
(36.83mm)
82nd Driest Driest since: 1943 1988
46th Wettest Wettest since: 1945 1993
Jan–Sep 1946
9-Month
29.20"
(741.68mm)
26.93"
(684.02mm)
2.27"
(57.66mm)
88th Driest Driest since: 1943 1988
40th Wettest Wettest since: 1945 1993
Dec 1945–Sep 1946
10-Month
31.16"
(791.46mm)
28.04"
(712.22mm)
3.12"
(79.24mm)
96th Driest Driest since: 1943 1988
31st Wettest Wettest since: 1945 1993
Nov 1945–Sep 1946
11-Month
32.44"
(823.98mm)
29.78"
(756.41mm)
2.66"
(67.57mm)
90th Driest Driest since: 1943 1934
37th Wettest Wettest since: 1945 1993
Oct 1945–Sep 1946
12-Month
32.78"
(832.61mm)
32.09"
(815.09mm)
0.69"
(17.52mm)
69th Driest Driest since: 1943 1934
58th Wettest Wettest since: 1945 1993
Apr 1945–Sep 1946
18-Month
58.47"
(1,485.14mm)
55.13"
(1,400.30mm)
3.34"
(84.84mm)
86th Driest Driest since: 1943 1934
41st Wettest Wettest since: 1945 1993
Oct 1944–Sep 1946
24-Month
67.33"
(1,710.18mm)
64.26"
(1,632.20mm)
3.07"
(77.98mm)
82nd Driest Driest since: 1941 1956
44th Wettest Wettest since: 1945 1993
Oct 1943–Sep 1946
36-Month
103.28"
(2,623.31mm)
96.36"
(2,447.54mm)
6.92"
(175.77mm)
94th Driest Driest since: 1945 1957
31st Wettest Wettest since: 1944 2010
Oct 1942–Sep 1946
48-Month
135.90"
(3,451.86mm)
128.36"
(3,260.34mm)
7.54"
(191.52mm)
90th Driest Driest since: 1943 1958
34th Wettest Wettest since: 1945 2010
Oct 1941–Sep 1946
60-Month
173.23"
(4,400.04mm)
160.34"
(4,072.64mm)
12.89"
(327.40mm)
97th Driest Driest since: 1944 1957
26th Wettest Wettest since: 1945 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2022, retrieved on August 16, 2022 from https://www.ncei.noaa.gov/cag/