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 May 2020. For more information, please see Climatological Rankings.


Iowa

Average Temperature Rankings, May 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1939
1-Month
65.7°F
(18.7°C)
59.8°F
(15.4°C)
5.9°F
(3.3°C)
122nd Coolest Coolest since: 1938 1907
5th Warmest Warmest since: 1934 1934
Apr–May 1939
2-Month
56.2°F
(13.4°C)
53.9°F
(12.2°C)
2.3°F
(1.2°C)
107th Coolest Coolest since: 1938 1907
20th Warmest Warmest since: 1934 1977
Ties: 1925, 1962, 1970
Mar–May 1939
3-Month
49.2°F
(9.6°C)
47.5°F
(8.6°C)
1.7°F
(1.0°C)
92nd Coolest Coolest since: 1937 1960
35th Warmest Warmest since: 1938 2012
Ties: 1895, 1998
Feb–May 1939
4-Month
41.6°F
(5.3°C)
41.3°F
(5.2°C)
0.3°F
(0.1°C)
72nd Coolest Coolest since: 1937 1899
55th Warmest Warmest since: 1938 2012
Ties: 1970, 2002
Jan–May 1939
5-Month
38.6°F
(3.7°C)
36.6°F
(2.6°C)
2.0°F
(1.1°C)
100th Coolest Coolest since: 1937 1979
27th Warmest Warmest since: 1938 2012
Ties: 1911, 1927, 1928, 2004
Dec 1938–May 1939
6-Month
36.3°F
(2.4°C)
34.3°F
(1.3°C)
2.0°F
(1.1°C)
101st Coolest Coolest since: 1938 1979
25th Warmest Warmest since: 1934 2012
Ties: 1932, 1946
Nov 1938–May 1939
7-Month
36.2°F
(2.3°C)
34.5°F
(1.4°C)
1.7°F
(0.9°C)
98th Coolest Coolest since: 1938 1979
28th Warmest Warmest since: 1934 2012
Ties: 1908, 1985
Oct 1938–May 1939
8-Month
39.0°F
(3.9°C)
36.7°F
(2.6°C)
2.3°F
(1.3°C)
108th Coolest Coolest since: 1938 1899, 1979
18th Warmest Warmest since: 1932 2012
Ties: 1942, 1981
Sep 1938–May 1939
9-Month
41.9°F
(5.5°C)
39.5°F
(4.2°C)
2.4°F
(1.3°C)
110th Coolest Coolest since: 1938 1899
16th Warmest Warmest since: 1934 2012
Ties: 1954, 1964, 1976
Aug 1938–May 1939
10-Month
45.2°F
(7.3°C)
42.7°F
(5.9°C)
2.5°F
(1.4°C)
114th Coolest Coolest since: 1938 1899
12th Warmest Warmest since: 1932 2012
Ties: 1942, 1998
Jul 1938–May 1939
11-Month
48.0°F
(8.9°C)
45.6°F
(7.6°C)
2.4°F
(1.3°C)
114th Coolest Coolest since: 1938 1899
12th Warmest Warmest since: 1932 2012
Jun 1938–May 1939
12-Month
49.7°F
(9.8°C)
47.5°F
(8.6°C)
2.2°F
(1.2°C)
113th Coolest Coolest since: 1938 1904
13th Warmest Warmest since: 1934 2012
Ties: 1981
Dec 1937–May 1939
18-Month
45.2°F
(7.3°C)
43.1°F
(6.2°C)
2.1°F
(1.1°C)
114th Coolest Coolest since: 1938 1979
11th Warmest Warmest since: 1935 2017
Ties: 1934, 1935, 1942, 2007
Jun 1937–May 1939
24-Month
49.2°F
(9.6°C)
47.5°F
(8.6°C)
1.7°F
(1.0°C)
110th Coolest Coolest since: 1938 1905
15th Warmest Warmest since: 1935 2017
Ties: 1933
Jun 1936–May 1939
36-Month
48.8°F
(9.3°C)
47.5°F
(8.6°C)
1.3°F
(0.7°C)
106th Coolest Coolest since: 1938 1905, 1918
18th Warmest Warmest since: 1935 2000
Ties: 1955
Jun 1935–May 1939
48-Month
47.9°F
(8.8°C)
47.5°F
(8.6°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1938 1907
43rd Warmest Warmest since: 1937 1934
Ties: 1903, 1925, 1945, 1977, 1999
Jun 1934–May 1939
60-Month
48.1°F
(8.9°C)
47.5°F
(8.6°C)
0.6°F
(0.3°C)
85th Coolest Coolest since: 1937 1907, 1997
37th Warmest Warmest since: 1938 1935
Ties: 1924, 1945, 2010, 2014

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2020, retrieved on July 2, 2020 from https://www.ncdc.noaa.gov/cag/