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 January 2021. For more information, please see Climatological Rankings.


Iowa

Average Temperature Rankings, December 2020

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 2020
1-Month
27.2°F
(-2.7°C)
22.7°F
(-5.2°C)
4.5°F
(2.5°C)
99th Coolest Coolest since: 2017 1983
28th Warmest Warmest since: 2019 2015
Nov–Dec 2020
2-Month
34.6°F
(1.4°C)
29.2°F
(-1.6°C)
5.4°F
(3.0°C)
117th Coolest Coolest since: 2019 1985
10th Warmest Warmest since: 2015 2001
Ties: 1987
Oct–Dec 2020
3-Month
38.4°F
(3.6°C)
36.6°F
(2.6°C)
1.8°F
(1.0°C)
92nd Coolest Coolest since: 2019 1985
35th Warmest Warmest since: 2016 1931
Ties: 1915, 1947, 1984
Sep–Dec 2020
4-Month
44.3°F
(6.8°C)
43.2°F
(6.2°C)
1.1°F
(0.6°C)
79th Coolest Coolest since: 2019 1985
48th Warmest Warmest since: 2017 1931
Ties: 1936
Aug–Dec 2020
5-Month
49.8°F
(9.9°C)
48.8°F
(9.3°C)
1.0°F
(0.6°C)
86th Coolest Coolest since: 2019 1985
41st Warmest Warmest since: 2016 1931
Ties: 1920, 1921, 1940, 1973, 2012
Jul–Dec 2020
6-Month
54.1°F
(12.3°C)
53.0°F
(11.7°C)
1.1°F
(0.6°C)
93rd Coolest Coolest since: 2019 1985
34th Warmest Warmest since: 2016 1931
Ties: 1987, 1988, 2003
Jun–Dec 2020
7-Month
56.8°F
(13.8°C)
55.3°F
(12.9°C)
1.5°F
(0.9°C)
99th Coolest Coolest since: 2019 1985
28th Warmest Warmest since: 2016 1931
Ties: 1949, 1987
May–Dec 2020
8-Month
56.9°F
(13.8°C)
55.9°F
(13.3°C)
1.0°F
(0.5°C)
92nd Coolest Coolest since: 2019 1917
35th Warmest Warmest since: 2018 1931
Ties: 1901, 1963, 1965, 1971
Apr–Dec 2020
9-Month
55.8°F
(13.2°C)
55.1°F
(12.8°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 2019 1917
42nd Warmest Warmest since: 2017 1931
Ties: 1914, 1965, 1975
Mar–Dec 2020
10-Month
54.2°F
(12.3°C)
53.0°F
(11.7°C)
1.2°F
(0.6°C)
97th Coolest Coolest since: 2019 1951
30th Warmest Warmest since: 2016 2012
Ties: 1949, 1953, 1994, 2004
Feb–Dec 2020
11-Month
51.5°F
(10.8°C)
50.2°F
(10.1°C)
1.3°F
(0.7°C)
101st Coolest Coolest since: 2019 1917
26th Warmest Warmest since: 2017 2012
Ties: 2011
Jan–Dec 2020
12-Month
49.2°F
(9.6°C)
47.5°F
(8.6°C)
1.7°F
(1.0°C)
107th Coolest Coolest since: 2019 1917
20th Warmest Warmest since: 2017 2012
Ties: 2002
Jul 2019–Dec 2020
18-Month
50.7°F
(10.4°C)
49.4°F
(9.7°C)
1.3°F
(0.7°C)
106th Coolest Coolest since: 2019 1951
20th Warmest Warmest since: 2017 2012
Ties: 1932, 1981, 2007
Jan 2019–Dec 2020
24-Month
48.0°F
(8.9°C)
47.5°F
(8.6°C)
0.5°F
(0.3°C)
83rd Coolest Coolest since: 2019 1951
43rd Warmest Warmest since: 2018 1931
Ties: 1911, 1956, 1990
Jan 2018–Dec 2020
36-Month
47.8°F
(8.8°C)
47.5°F
(8.6°C)
0.3°F
(0.2°C)
79th Coolest Coolest since: 2015 1952
46th Warmest Warmest since: 2019 2017
Ties: 1915, 2011
Jan 2017–Dec 2020
48-Month
48.4°F
(9.1°C)
47.5°F
(8.6°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 2016 1905
29th Warmest Warmest since: 2019 1934
Ties: 1921, 1939, 1987, 2015
Jan 2016–Dec 2020
60-Month
48.8°F
(9.3°C)
47.4°F
(8.6°C)
1.4°F
(0.7°C)
111th Coolest Coolest since: 2018 1907
12th Warmest Warmest since: 2019 1934, 2002
Ties: 1942, 2016

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2021, retrieved on February 25, 2021 from https://www.ncdc.noaa.gov/cag/