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, August 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
August 1991
1-Month
3.45"
(87.63mm)
3.84"
(97.54mm)
-0.39"
(-9.91mm)
55th Driest Driest since: 1984 1984
73rd Wettest Wettest since: 1990 2007
Jul–Aug 1991
2-Month
5.77"
(146.56mm)
7.70"
(195.58mm)
-1.93"
(-49.02mm)
27th Driest Driest since: 1984 1947
101st Wettest Wettest since: 1990 1993
Jun–Aug 1991
3-Month
9.91"
(251.71mm)
12.33"
(313.18mm)
-2.42"
(-61.47mm)
22nd Driest Driest since: 1988 1927
106th Wettest Wettest since: 1990 1993
May–Aug 1991
4-Month
15.10"
(383.54mm)
16.38"
(416.05mm)
-1.28"
(-32.51mm)
49th Driest Driest since: 1989 1936
79th Wettest Wettest since: 1990 1993
Apr–Aug 1991
5-Month
20.93"
(531.62mm)
19.32"
(490.73mm)
1.61"
(40.89mm)
78th Driest Driest since: 1989 1936
50th Wettest Wettest since: 1990 1993
Mar–Aug 1991
6-Month
25.12"
(638.05mm)
21.28"
(540.51mm)
3.84"
(97.54mm)
103rd Driest Driest since: 1989 1936
25th Wettest Wettest since: 1990 1993
Feb–Aug 1991
7-Month
25.42"
(645.67mm)
22.29"
(566.17mm)
3.13"
(79.50mm)
99th Driest Driest since: 1989 1988
29th Wettest Wettest since: 1990 1993
Jan–Aug 1991
8-Month
26.19"
(665.23mm)
23.27"
(591.06mm)
2.92"
(74.17mm)
94th Driest Driest since: 1989 1988
34th Wettest Wettest since: 1990 1993
Dec 1990–Aug 1991
9-Month
27.69"
(703.33mm)
24.37"
(619.00mm)
3.32"
(84.33mm)
97th Driest Driest since: 1989 1988
30th Wettest Wettest since: 1990 1993
Nov 1990–Aug 1991
10-Month
29.34"
(745.24mm)
26.11"
(663.19mm)
3.23"
(82.05mm)
93rd Driest Driest since: 1989 1934
34th Wettest Wettest since: 1990 1993
Oct 1990–Aug 1991
11-Month
31.22"
(792.99mm)
28.42"
(721.87mm)
2.80"
(71.12mm)
89th Driest Driest since: 1989 1934
38th Wettest Wettest since: 1990 1993
Sep 1990–Aug 1991
12-Month
32.61"
(828.29mm)
32.12"
(815.85mm)
0.49"
(12.44mm)
67th Driest Driest since: 1989 1934
60th Wettest Wettest since: 1990 1993
Mar 1990–Aug 1991
18-Month
63.55"
(1,614.17mm)
53.43"
(1,357.12mm)
10.12"
(257.05mm)
112th Driest Driest since: 1990 1911
15th Wettest Wettest since: 1974 1993
Sep 1989–Aug 1991
24-Month
72.49"
(1,841.25mm)
64.28"
(1,632.71mm)
8.21"
(208.54mm)
106th Driest Driest since: 1990 1934
20th Wettest Wettest since: 1987 1993
Sep 1988–Aug 1991
36-Month
97.46"
(2,475.48mm)
96.39"
(2,448.31mm)
1.07"
(27.17mm)
68th Driest Driest since: 1990 1957
57th Wettest Wettest since: 1988 2010
Sep 1987–Aug 1991
48-Month
119.07"
(3,024.38mm)
128.37"
(3,260.60mm)
-9.30"
(-236.22mm)
19th Driest Driest since: 1959 1936
105th Wettest Wettest since: 1990 2010
Sep 1986–Aug 1991
60-Month
156.64"
(3,978.66mm)
160.37"
(4,073.40mm)
-3.73"
(-94.74mm)
40th Driest Driest since: 1989 1957
83rd Wettest Wettest since: 1990 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 26, 2022 from https://www.ncdc.noaa.gov/cag/