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


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 1931

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1931
1-Month
61.5°F
(16.4°C)
65.1°F
(18.4°C)
-3.6°F
(-2.0°C)
14th Coolest Coolest since: 1924 1917, 1924
113th Warmest Warmest since: 1930 2018
Apr–May 1931
2-Month
58.4°F
(14.7°C)
60.1°F
(15.6°C)
-1.7°F
(-0.9°C)
22nd Coolest Coolest since: 1928 1907
105th Warmest Warmest since: 1930 1896
Ties: 1909, 2020
Mar–May 1931
3-Month
52.2°F
(11.2°C)
55.0°F
(12.8°C)
-2.8°F
(-1.6°C)
6th Coolest Coolest since: 1926 1960
121st Warmest Warmest since: 1930 2012
Ties: 1983
Feb–May 1931
4-Month
49.2°F
(9.6°C)
50.0°F
(10.0°C)
-0.8°F
(-0.4°C)
48th Coolest Coolest since: 1929 1978
79th Warmest Warmest since: 1930 2012
Ties: 1961, 1982
Jan–May 1931
5-Month
46.4°F
(8.0°C)
46.2°F
(7.9°C)
0.2°F
(0.1°C)
62nd Coolest Coolest since: 1929 1978
65th Warmest Warmest since: 1930 2012
Ties: 1989
Dec 1930–May 1931
6-Month
44.3°F
(6.8°C)
44.2°F
(6.8°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 1929 1978
67th Warmest Warmest since: 1930 2012
Ties: 1965, 1988
Nov 1930–May 1931
7-Month
44.4°F
(6.9°C)
44.3°F
(6.8°C)
0.1°F
(0.1°C)
54th Coolest Coolest since: 1929 1978
72nd Warmest Warmest since: 1930 2012
Ties: 1910, 1923, 1943, 1944
Oct 1930–May 1931
8-Month
45.8°F
(7.7°C)
46.0°F
(7.8°C)
-0.2°F
(-0.1°C)
48th Coolest Coolest since: 1929 1978
78th Warmest Warmest since: 1930 2012
Ties: 1900, 1910, 1988
Sep 1930–May 1931
9-Month
48.6°F
(9.2°C)
48.5°F
(9.2°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 1930 1978
67th Warmest Warmest since: 1928 2012
Ties: 1901, 1933
Aug 1930–May 1931
10-Month
51.6°F
(10.9°C)
51.3°F
(10.7°C)
0.3°F
(0.2°C)
72nd Coolest Coolest since: 1930 1978
54th Warmest Warmest since: 1927 2012
Ties: 1950, 1985, 1990, 2013
Jul 1930–May 1931
11-Month
54.4°F
(12.4°C)
53.7°F
(12.1°C)
0.7°F
(0.3°C)
83rd Coolest Coolest since: 1930 1918
43rd Warmest Warmest since: 1922 2012
Ties: 1986, 1995
Jun 1930–May 1931
12-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1930 1904, 1918
43rd Warmest Warmest since: 1923 2012
Ties: 1923
Dec 1929–May 1931
18-Month
52.4°F
(11.3°C)
51.7°F
(10.9°C)
0.7°F
(0.4°C)
92nd Coolest Coolest since: 1930 1979
33rd Warmest Warmest since: 1923 2017
Ties: 1909, 1950, 1956, 1957, 1976, 2002
Jun 1929–May 1931
24-Month
55.4°F
(13.0°C)
55.3°F
(12.9°C)
0.1°F
(0.1°C)
54th Coolest Coolest since: 1930 1905, 1978
71st Warmest Warmest since: 1923 2017
Ties: 1920, 1967, 1976, 1982, 1996, 1998
Jun 1928–May 1931
36-Month
55.1°F
(12.8°C)
55.4°F
(13.0°C)
-0.3°F
(-0.2°C)
38th Coolest Coolest since: 1930 1979
86th Warmest Warmest since: 1928 2018
Ties: 1917, 1928, 1953, 1985, 1997
Jun 1927–May 1931
48-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
29th Coolest Coolest since: 1930 1980
94th Warmest Warmest since: 1928 2019
Ties: 1899, 1912, 1914, 1952, 1960, 1972, 1973, 1983, 1997
Jun 1926–May 1931
60-Month
55.2°F
(12.9°C)
55.4°F
(13.0°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1930 1979, 1980, 1981
75th Warmest Warmest since: 1927 2020
Ties: 1910, 1915, 1985

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published February 2021, retrieved on March 7, 2021 from https://www.ncdc.noaa.gov/cag/