Climate at a Glance

Divisional 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 March 2020. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 1921

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1921
1-Month
66.1°F
(18.9°C)
65.1°F
(18.4°C)
1.0°F
(0.5°C)
77th Coolest Coolest since: 1920 1917, 1924
49th Warmest Warmest since: 1918 2018
Ties: 1932, 1988
Apr–May 1921
2-Month
61.1°F
(16.2°C)
60.2°F
(15.7°C)
0.9°F
(0.5°C)
78th Coolest Coolest since: 1920 1907
48th Warmest Warmest since: 1915 1896
Ties: 1905
Mar–May 1921
3-Month
58.5°F
(14.7°C)
55.0°F
(12.8°C)
3.5°F
(1.9°C)
118th Coolest Coolest since: 1920 1960
8th Warmest Warmest to Date 2012
Ties: 1938
Feb–May 1921
4-Month
53.8°F
(12.1°C)
50.0°F
(10.0°C)
3.8°F
(2.1°C)
120th Coolest Coolest since: 1920 1978
6th Warmest Warmest to Date 2012
Jan–May 1921
5-Month
50.5°F
(10.3°C)
46.2°F
(7.9°C)
4.3°F
(2.4°C)
123rd Coolest Coolest since: 1920 1978
3rd Warmest Warmest to Date 2012
Dec 1920–May 1921
6-Month
48.1°F
(8.9°C)
44.2°F
(6.8°C)
3.9°F
(2.1°C)
121st Coolest Coolest since: 1920 1978
4th Warmest Warmest to Date 2012
Nov 1920–May 1921
7-Month
47.2°F
(8.4°C)
44.3°F
(6.8°C)
2.9°F
(1.6°C)
117th Coolest Coolest since: 1920 1978
8th Warmest Warmest to Date 2012
Oct 1920–May 1921
8-Month
48.9°F
(9.4°C)
45.9°F
(7.7°C)
3.0°F
(1.7°C)
119th Coolest Coolest since: 1920 1978
6th Warmest Warmest to Date 2012
Sep 1920–May 1921
9-Month
51.4°F
(10.8°C)
48.6°F
(9.2°C)
2.8°F
(1.6°C)
119th Coolest Coolest since: 1920 1978
6th Warmest Warmest to Date 2012
Aug 1920–May 1921
10-Month
53.5°F
(11.9°C)
51.3°F
(10.7°C)
2.2°F
(1.2°C)
117th Coolest Coolest since: 1920 1978
8th Warmest Warmest to Date 2012
Jul 1920–May 1921
11-Month
55.6°F
(13.1°C)
53.7°F
(12.1°C)
1.9°F
(1.0°C)
115th Coolest Coolest since: 1920 1918
10th Warmest Warmest to Date 2012
Jun 1920–May 1921
12-Month
57.0°F
(13.9°C)
55.3°F
(12.9°C)
1.7°F
(1.0°C)
111th Coolest Coolest since: 1920 1904, 1918
14th Warmest Warmest to Date 2012
Ties: 1974, 1992
Dec 1919–May 1921
18-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1920 1979
51st Warmest Warmest since: 1915 2017
Ties: 1897, 1946, 1989
Jun 1919–May 1921
24-Month
55.8°F
(13.2°C)
55.3°F
(12.9°C)
0.5°F
(0.3°C)
85th Coolest Coolest since: 1920 1905, 1978
39th Warmest Warmest since: 1915 2017
Ties: 1946, 1950, 1972, 1974, 1986
Jun 1918–May 1921
36-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
88th Coolest Coolest since: 1920 1979
35th Warmest Warmest to Date 2018
Ties: 1944, 1993
Jun 1917–May 1921
48-Month
55.1°F
(12.8°C)
55.3°F
(12.9°C)
-0.2°F
(-0.1°C)
39th Coolest Coolest since: 1920 1980
83rd Warmest Warmest since: 1917 2019
Ties: 1901, 1965, 1984
Jun 1916–May 1921
60-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
29th Coolest Coolest since: 1920 1979, 1980, 1981
92nd Warmest Warmest since: 1917 1935, 2019
Ties: 1900, 1901, 1913, 1965

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published April 2020, retrieved on April 9, 2020 from https://www.ncdc.noaa.gov/cag/