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 1939

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
(1895-2022)
Wettest/Driest
Since
Record
August 1939
1-Month
4.67"
(118.62mm)
3.84"
(97.54mm)
0.83"
(21.08mm)
92nd Driest Driest since: 1938 1984
37th Wettest Wettest since: 1932 2007
Jul–Aug 1939
2-Month
7.87"
(199.90mm)
7.70"
(195.58mm)
0.17"
(4.32mm)
74th Driest Driest since: 1937 1947
55th Wettest Wettest since: 1938 1993
Jun–Aug 1939
3-Month
12.79"
(324.87mm)
12.33"
(313.18mm)
0.46"
(11.69mm)
79th Driest Driest since: 1938 1927
50th Wettest Wettest since: 1932 1993
May–Aug 1939
4-Month
14.83"
(376.68mm)
16.38"
(416.05mm)
-1.55"
(-39.37mm)
43rd Driest Driest since: 1937 1936
86th Wettest Wettest since: 1938 1993
Ties: 1963
Apr–Aug 1939
5-Month
16.83"
(427.48mm)
19.32"
(490.73mm)
-2.49"
(-63.25mm)
32nd Driest Driest since: 1936 1936
97th Wettest Wettest since: 1938 1993
Mar–Aug 1939
6-Month
18.46"
(468.88mm)
21.28"
(540.51mm)
-2.82"
(-71.63mm)
32nd Driest Driest since: 1936 1936
97th Wettest Wettest since: 1938 1993
Feb–Aug 1939
7-Month
20.23"
(513.84mm)
22.29"
(566.17mm)
-2.06"
(-52.33mm)
37th Driest Driest since: 1937 1988
92nd Wettest Wettest since: 1938 1993
Jan–Aug 1939
8-Month
21.09"
(535.69mm)
23.27"
(591.06mm)
-2.18"
(-55.37mm)
35th Driest Driest since: 1936 1988
94th Wettest Wettest since: 1938 1993
Dec 1938–Aug 1939
9-Month
21.78"
(553.21mm)
24.37"
(619.00mm)
-2.59"
(-65.79mm)
32nd Driest Driest since: 1936 1988
96th Wettest Wettest since: 1938 1993
Nov 1938–Aug 1939
10-Month
24.48"
(621.79mm)
26.11"
(663.19mm)
-1.63"
(-41.40mm)
43rd Driest Driest since: 1936 1934
85th Wettest Wettest since: 1938 1993
Oct 1938–Aug 1939
11-Month
25.33"
(643.38mm)
28.42"
(721.87mm)
-3.09"
(-78.49mm)
26th Driest Driest since: 1936 1934
102nd Wettest Wettest since: 1938 1993
Sep 1938–Aug 1939
12-Month
31.28"
(794.51mm)
32.12"
(815.85mm)
-0.84"
(-21.34mm)
57th Driest Driest since: 1938 1934
71st Wettest Wettest since: 1937 1993
Mar 1938–Aug 1939
18-Month
55.36"
(1,406.14mm)
53.43"
(1,357.12mm)
1.93"
(49.02mm)
73rd Driest Driest since: 1938 1911
55th Wettest Wettest since: 1932 1993
Sep 1937–Aug 1939
24-Month
62.49"
(1,587.25mm)
64.28"
(1,632.71mm)
-1.79"
(-45.46mm)
54th Driest Driest since: 1937 1934
73rd Wettest Wettest since: 1938 1993
Sep 1936–Aug 1939
36-Month
95.67"
(2,430.02mm)
96.39"
(2,448.31mm)
-0.72"
(-18.29mm)
55th Driest Driest since: 1938 1957
71st Wettest Wettest since: 1929 2010
Sep 1935–Aug 1939
48-Month
120.09"
(3,050.29mm)
128.37"
(3,260.60mm)
-8.28"
(-210.31mm)
23rd Driest Driest since: 1937 1936
102nd Wettest Wettest since: 1938 2010
Sep 1934–Aug 1939
60-Month
154.98"
(3,936.49mm)
160.37"
(4,073.40mm)
-5.39"
(-136.91mm)
33rd Driest Driest since: 1938 1957
91st Wettest Wettest since: 1932 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 30, 2022 from https://www.ncdc.noaa.gov/cag/