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 September 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, July 1938

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
July 1938
1-Month
4.57"
(116.08mm)
3.86"
(98.04mm)
0.71"
(18.04mm)
94th Driest Driest since: 1937 1936
32nd Wettest Wettest since: 1922 1993
Ties: 1940
Jun–Jul 1938
2-Month
9.14"
(232.16mm)
8.49"
(215.65mm)
0.65"
(16.51mm)
83rd Driest Driest since: 1937 1936
43rd Wettest Wettest since: 1935 1993
May–Jul 1938
3-Month
14.63"
(371.60mm)
12.53"
(318.26mm)
2.10"
(53.34mm)
91st Driest Driest since: 1937 1988
35th Wettest Wettest since: 1935 1993
Apr–Jul 1938
4-Month
18.25"
(463.55mm)
15.48"
(393.19mm)
2.77"
(70.36mm)
99th Driest Driest since: 1937 1936
27th Wettest Wettest since: 1915 1993
Mar–Jul 1938
5-Month
20.58"
(522.73mm)
17.43"
(442.72mm)
3.15"
(80.01mm)
98th Driest Driest since: 1937 1936
28th Wettest Wettest since: 1915 1993
Feb–Jul 1938
6-Month
21.53"
(546.86mm)
18.45"
(468.63mm)
3.08"
(78.23mm)
98th Driest Driest since: 1937 1988
28th Wettest Wettest since: 1915 1993
Jan–Jul 1938
7-Month
22.63"
(574.80mm)
19.43"
(493.52mm)
3.20"
(81.28mm)
99th Driest Driest since: 1937 1988
27th Wettest Wettest since: 1915 1993
Dec 1937–Jul 1938
8-Month
23.37"
(593.60mm)
20.53"
(521.46mm)
2.84"
(72.14mm)
91st Driest Driest since: 1937 1988
34th Wettest Wettest since: 1915 1993
Nov 1937–Jul 1938
9-Month
24.08"
(611.63mm)
22.27"
(565.66mm)
1.81"
(45.97mm)
78th Driest Driest since: 1937 1934
47th Wettest Wettest since: 1935 1993
Oct 1937–Jul 1938
10-Month
26.17"
(664.72mm)
24.58"
(624.33mm)
1.59"
(40.39mm)
78th Driest Driest since: 1937 1934
47th Wettest Wettest since: 1935 1993
Sep 1937–Jul 1938
11-Month
27.71"
(703.83mm)
28.28"
(718.31mm)
-0.57"
(-14.48mm)
54th Driest Driest since: 1936 1988
71st Wettest Wettest since: 1937 1993
Aug 1937–Jul 1938
12-Month
31.82"
(808.23mm)
32.14"
(816.36mm)
-0.32"
(-8.13mm)
60th Driest Driest since: 1936 1956
65th Wettest Wettest since: 1937 2008
Feb 1937–Jul 1938
18-Month
47.89"
(1,216.41mm)
50.60"
(1,285.24mm)
-2.71"
(-68.83mm)
41st Driest Driest since: 1937 1911
84th Wettest Wettest since: 1932 2008
Ties: 2003
Aug 1936–Jul 1938
24-Month
64.38"
(1,635.25mm)
64.31"
(1,633.47mm)
0.07"
(1.78mm)
61st Driest Driest since: 1937 1934
63rd Wettest Wettest since: 1933 2008
Aug 1935–Jul 1938
36-Month
87.79"
(2,229.87mm)
96.40"
(2,448.56mm)
-8.61"
(-218.69mm)
17th Driest Driest since: 1936 1956
106th Wettest Wettest since: 1937 2010
Aug 1934–Jul 1938
48-Month
123.03"
(3,124.96mm)
128.38"
(3,260.85mm)
-5.35"
(-135.89mm)
31st Driest Driest since: 1937 1957
91st Wettest Wettest since: 1935 2010
Aug 1933–Jul 1938
60-Month
144.67"
(3,674.62mm)
160.37"
(4,073.40mm)
-15.70"
(-398.78mm)
9th Driest Driest since: 1937 1957
112th Wettest Wettest since: 1936 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/