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, August 1974

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1974
1-Month
4.77"
(121.16mm)
3.84"
(97.54mm)
0.93"
(23.62mm)
97th Driest Driest since: 1973 1984
32nd Wettest Wettest since: 1960 2007
Jul–Aug 1974
2-Month
7.06"
(179.32mm)
7.70"
(195.58mm)
-0.64"
(-16.26mm)
58th Driest Driest since: 1971 1947
71st Wettest Wettest since: 1973 1993
Jun–Aug 1974
3-Month
11.76"
(298.70mm)
12.33"
(313.18mm)
-0.57"
(-14.48mm)
58th Driest Driest since: 1973 1927
71st Wettest Wettest since: 1972 1993
Ties: 1926
May–Aug 1974
4-Month
18.03"
(457.96mm)
16.38"
(416.05mm)
1.65"
(41.91mm)
86th Driest Driest since: 1973 1936
43rd Wettest Wettest since: 1972 1993
Apr–Aug 1974
5-Month
21.37"
(542.80mm)
19.32"
(490.73mm)
2.05"
(52.07mm)
86th Driest Driest since: 1971 1936
43rd Wettest Wettest since: 1973 1993
Mar–Aug 1974
6-Month
23.08"
(586.23mm)
21.28"
(540.51mm)
1.80"
(45.72mm)
83rd Driest Driest since: 1971 1936
46th Wettest Wettest since: 1973 1993
Feb–Aug 1974
7-Month
23.75"
(603.25mm)
22.29"
(566.17mm)
1.46"
(37.08mm)
78th Driest Driest since: 1971 1988
51st Wettest Wettest since: 1973 1993
Jan–Aug 1974
8-Month
24.96"
(633.98mm)
23.27"
(591.06mm)
1.69"
(42.92mm)
82nd Driest Driest since: 1972 1988
47th Wettest Wettest since: 1973 1993
Dec 1973–Aug 1974
9-Month
26.99"
(685.55mm)
24.37"
(619.00mm)
2.62"
(66.55mm)
89th Driest Driest since: 1972 1988
39th Wettest Wettest since: 1973 1993
Nov 1973–Aug 1974
10-Month
29.24"
(742.70mm)
26.11"
(663.19mm)
3.13"
(79.51mm)
91st Driest Driest since: 1971 1934
37th Wettest Wettest since: 1973 1993
Ties: 2018
Oct 1973–Aug 1974
11-Month
31.81"
(807.97mm)
28.42"
(721.87mm)
3.39"
(86.10mm)
95th Driest Driest since: 1971 1934
33rd Wettest Wettest since: 1973 1993
Sep 1973–Aug 1974
12-Month
38.73"
(983.74mm)
32.12"
(815.85mm)
6.61"
(167.89mm)
111th Driest Driest since: 1972 1934
17th Wettest Wettest since: 1973 1993
Mar 1973–Aug 1974
18-Month
64.82"
(1,646.43mm)
53.43"
(1,357.12mm)
11.39"
(289.31mm)
116th Driest Driest since: 1972 1911
12th Wettest Wettest since: 1973 1993
Sep 1972–Aug 1974
24-Month
80.60"
(2,047.24mm)
64.28"
(1,632.71mm)
16.32"
(414.53mm)
118th Driest Driest since: 1973 1934
9th Wettest Wettest since: 1903 1993
Sep 1971–Aug 1974
36-Month
115.91"
(2,944.11mm)
96.39"
(2,448.31mm)
19.52"
(495.80mm)
118th Driest Driest since: 1973 1957
8th Wettest Wettest to Date 2010
Sep 1970–Aug 1974
48-Month
147.41"
(3,744.21mm)
128.37"
(3,260.60mm)
19.04"
(483.61mm)
112th Driest Driest since: 1973 1936
13th Wettest Wettest to Date 2010
Sep 1969–Aug 1974
60-Month
175.64"
(4,461.26mm)
160.37"
(4,073.40mm)
15.27"
(387.86mm)
102nd Driest Driest since: 1973 1957
22nd Wettest Wettest since: 1946 2011
Ties: 1946

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 27, 2022 from https://www.ncdc.noaa.gov/cag/