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 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, May 1921

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1921
1-Month
64.2°F
(17.9°C)
62.1°F
(16.7°C)
2.1°F
(1.2°C)
90th Coolest Coolest since: 1920 1917
37th Warmest Warmest since: 1918 2018
Apr–May 1921
2-Month
59.2°F
(15.1°C)
56.8°F
(13.8°C)
2.4°F
(1.3°C)
106th Coolest Coolest since: 1920 1907
21st Warmest Warmest since: 1896 1896
Ties: 1959, 1999, 2017
Mar–May 1921
3-Month
55.6°F
(13.1°C)
51.1°F
(10.6°C)
4.5°F
(2.5°C)
123rd Coolest Coolest since: 1920 1960
4th Warmest Warmest to Date 2012
Ties: 2010
Feb–May 1921
4-Month
50.4°F
(10.2°C)
45.6°F
(7.6°C)
4.8°F
(2.6°C)
123rd Coolest Coolest since: 1920 1978
4th Warmest Warmest to Date 2012
Ties: 1987
Jan–May 1921
5-Month
46.8°F
(8.2°C)
41.6°F
(5.3°C)
5.2°F
(2.9°C)
124th Coolest Coolest since: 1920 1978, 1979
3rd Warmest Warmest to Date 2012
Dec 1920–May 1921
6-Month
44.3°F
(6.8°C)
39.6°F
(4.2°C)
4.7°F
(2.6°C)
124th Coolest Coolest since: 1920 1978
2nd Warmest Warmest to Date 2012
Nov 1920–May 1921
7-Month
43.4°F
(6.3°C)
39.7°F
(4.3°C)
3.7°F
(2.0°C)
119th Coolest Coolest since: 1920 1904
7th Warmest Warmest to Date 2012
Oct 1920–May 1921
8-Month
45.4°F
(7.4°C)
41.6°F
(5.3°C)
3.8°F
(2.1°C)
121st Coolest Coolest since: 1920 1904, 1978
5th Warmest Warmest to Date 2012
Ties: 2000
Sep 1920–May 1921
9-Month
48.0°F
(8.9°C)
44.4°F
(6.9°C)
3.6°F
(2.0°C)
121st Coolest Coolest since: 1920 1904
5th Warmest Warmest to Date 2012
Aug 1920–May 1921
10-Month
50.3°F
(10.2°C)
47.2°F
(8.4°C)
3.1°F
(1.8°C)
121st Coolest Coolest since: 1920 1904
5th Warmest Warmest to Date 2012
Ties: 2006
Jul 1920–May 1921
11-Month
52.5°F
(11.4°C)
49.9°F
(9.9°C)
2.6°F
(1.5°C)
119th Coolest Coolest since: 1920 1904
7th Warmest Warmest to Date 2012
Ties: 1999
Jun 1920–May 1921
12-Month
54.0°F
(12.2°C)
51.6°F
(10.9°C)
2.4°F
(1.3°C)
118th Coolest Coolest since: 1920 1904
8th Warmest Warmest to Date 2012
Dec 1919–May 1921
18-Month
48.1°F
(8.9°C)
47.6°F
(8.7°C)
0.5°F
(0.2°C)
80th Coolest Coolest since: 1920 1979
45th Warmest Warmest since: 1915 2017
Ties: 1938, 1949, 2019
Jun 1919–May 1921
24-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
91st Coolest Coolest since: 1920 1905
34th Warmest Warmest since: 1915 2017
Ties: 1950, 1989, 2019
Jun 1918–May 1921
36-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
91st Coolest Coolest since: 1920 1979
33rd Warmest Warmest to Date 2018
Ties: 1943, 1993
Jun 1917–May 1921
48-Month
51.4°F
(10.8°C)
51.5°F
(10.8°C)
-0.1°F
(0.0°C)
41st Coolest Coolest since: 1920 1980
82nd Warmest Warmest since: 1917 2019
Ties: 1909, 1911, 1914, 1931, 1953, 1966, 1983
Jun 1916–May 1921
60-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
29th Coolest Coolest since: 1920 1906, 1907, 1908, 1981
93rd Warmest Warmest since: 1917 2020
Ties: 1901, 1927, 1961, 1964

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 23, 2020 from https://www.ncdc.noaa.gov/cag/