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


Iowa

Average Temperature Rankings, May 1978

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1978
1-Month
59.6°F
(15.3°C)
59.8°F
(15.4°C)
-0.2°F
(-0.1°C)
67th Coolest Coolest since: 1976 1907
60th Warmest Warmest since: 1977 1934
Ties: 1899
Apr–May 1978
2-Month
53.9°F
(12.2°C)
53.9°F
(12.2°C)
0.0°F
(0.0°C)
60th Coolest Coolest since: 1975 1907
67th Warmest Warmest since: 1977 1977
Ties: 1937
Mar–May 1978
3-Month
46.2°F
(7.9°C)
47.5°F
(8.6°C)
-1.3°F
(-0.7°C)
40th Coolest Coolest since: 1975 1960
87th Warmest Warmest since: 1977 2012
Feb–May 1978
4-Month
37.6°F
(3.1°C)
41.3°F
(5.2°C)
-3.7°F
(-2.1°C)
7th Coolest Coolest since: 1960 1899
120th Warmest Warmest since: 1977 2012
Ties: 2014
Jan–May 1978
5-Month
31.7°F
(-0.2°C)
36.6°F
(2.6°C)
-4.9°F
(-2.8°C)
3rd Coolest Coolest since: 1912 1979
124th Warmest Warmest since: 1977 2012
Dec 1977–May 1978
6-Month
29.7°F
(-1.3°C)
34.3°F
(1.3°C)
-4.6°F
(-2.6°C)
3rd Coolest Coolest since: 1899 1979
123rd Warmest Warmest since: 1977 2012
Nov 1977–May 1978
7-Month
30.5°F
(-0.8°C)
34.5°F
(1.4°C)
-4.0°F
(-2.2°C)
5th Coolest Coolest since: 1936 1979
121st Warmest Warmest since: 1977 2012
Ties: 1904
Oct 1977–May 1978
8-Month
32.8°F
(0.4°C)
36.6°F
(2.6°C)
-3.8°F
(-2.2°C)
4th Coolest Coolest since: 1936 1899, 1979
122nd Warmest Warmest since: 1977 2012
Ties: 1936
Sep 1977–May 1978
9-Month
36.3°F
(2.4°C)
39.6°F
(4.2°C)
-3.3°F
(-1.8°C)
5th Coolest Coolest since: 1936 1899
121st Warmest Warmest since: 1977 2012
Ties: 1936
Aug 1977–May 1978
10-Month
39.5°F
(4.2°C)
42.8°F
(6.0°C)
-3.3°F
(-1.8°C)
5th Coolest Coolest since: 1912 1899
121st Warmest Warmest since: 1977 2012
Jul 1977–May 1978
11-Month
42.9°F
(6.1°C)
45.6°F
(7.6°C)
-2.7°F
(-1.5°C)
5th Coolest Coolest since: 1951 1899
121st Warmest Warmest since: 1977 2012
Ties: 1951
Jun 1977–May 1978
12-Month
45.2°F
(7.3°C)
47.5°F
(8.6°C)
-2.3°F
(-1.3°C)
7th Coolest Coolest since: 1951 1904
119th Warmest Warmest since: 1977 2012
Ties: 1936
Dec 1976–May 1978
18-Month
42.0°F
(5.6°C)
43.1°F
(6.2°C)
-1.1°F
(-0.6°C)
21st Coolest Coolest since: 1971 1979
104th Warmest Warmest since: 1977 2017
Ties: 1900, 1912, 1937, 1962, 1971, 2009
Jun 1976–May 1978
24-Month
46.2°F
(7.9°C)
47.5°F
(8.6°C)
-1.3°F
(-0.7°C)
12th Coolest Coolest since: 1952 1905
113th Warmest Warmest since: 1977 2017
Ties: 1980
Jun 1975–May 1978
36-Month
47.3°F
(8.5°C)
47.5°F
(8.6°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1975 1905, 1918
77th Warmest Warmest since: 1977 2000
Ties: 1928, 1938, 1945
Jun 1974–May 1978
48-Month
47.1°F
(8.4°C)
47.5°F
(8.6°C)
-0.4°F
(-0.2°C)
34th Coolest Coolest since: 1973 1907
89th Warmest Warmest since: 1977 1934
Ties: 1960, 1965, 1995
Jun 1973–May 1978
60-Month
47.3°F
(8.5°C)
47.4°F
(8.6°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1975 1907, 1997
75th Warmest Warmest since: 1977 1935
Ties: 1910, 1928, 1947, 1967

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 13, 2020 from https://www.ncdc.noaa.gov/cag/