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 August 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, May 1931

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1931
1-Month
58.5°F
(14.7°C)
62.1°F
(16.7°C)
-3.6°F
(-2.0°C)
13th Coolest Coolest since: 1924 1917
113th Warmest Warmest since: 1930 2018
Ties: 1947
Apr–May 1931
2-Month
55.3°F
(12.9°C)
56.8°F
(13.8°C)
-1.5°F
(-0.9°C)
29th Coolest Coolest since: 1928 1907
97th Warmest Warmest since: 1930 1896
Ties: 1943
Mar–May 1931
3-Month
48.8°F
(9.3°C)
51.1°F
(10.6°C)
-2.3°F
(-1.3°C)
14th Coolest Coolest since: 1926 1960
112th Warmest Warmest since: 1930 2012
Feb–May 1931
4-Month
45.7°F
(7.6°C)
45.7°F
(7.6°C)
0.0°F
(0.0°C)
61st Coolest Coolest since: 1929 1978
65th Warmest Warmest since: 1930 2012
Jan–May 1931
5-Month
42.8°F
(6.0°C)
41.6°F
(5.3°C)
1.2°F
(0.7°C)
88th Coolest Coolest since: 1930 1978, 1979
38th Warmest Warmest since: 1930 2012
Ties: 1930, 2010
Dec 1930–May 1931
6-Month
40.7°F
(4.8°C)
39.6°F
(4.2°C)
1.1°F
(0.6°C)
89th Coolest Coolest since: 1930 1978
36th Warmest Warmest since: 1922 2012
Ties: 1985, 1990, 2013
Nov 1930–May 1931
7-Month
40.8°F
(4.9°C)
39.8°F
(4.3°C)
1.0°F
(0.6°C)
90th Coolest Coolest since: 1930 1904
35th Warmest Warmest since: 1922 2012
Ties: 1903, 2013
Oct 1930–May 1931
8-Month
42.2°F
(5.7°C)
41.6°F
(5.3°C)
0.6°F
(0.4°C)
80th Coolest Coolest since: 1930 1904, 1978
45th Warmest Warmest since: 1928 2012
Ties: 1898, 1911, 1928, 1934, 2013
Sep 1930–May 1931
9-Month
45.1°F
(7.3°C)
44.3°F
(6.8°C)
0.8°F
(0.5°C)
84th Coolest Coolest since: 1930 1904
41st Warmest Warmest since: 1928 2012
Ties: 1896, 2010
Aug 1930–May 1931
10-Month
48.2°F
(9.0°C)
47.3°F
(8.5°C)
0.9°F
(0.5°C)
91st Coolest Coolest since: 1930 1904
34th Warmest Warmest since: 1922 2012
Ties: 1934, 1964, 1985
Jul 1930–May 1931
11-Month
50.9°F
(10.5°C)
49.8°F
(9.9°C)
1.1°F
(0.6°C)
99th Coolest Coolest since: 1930 1904
26th Warmest Warmest since: 1922 2012
Ties: 1934, 1981
Jun 1930–May 1931
12-Month
52.6°F
(11.4°C)
51.7°F
(10.9°C)
0.9°F
(0.5°C)
96th Coolest Coolest since: 1930 1904
29th Warmest Warmest since: 1922 2012
Ties: 1941, 1957, 1981, 1995, 2005, 2013
Dec 1929–May 1931
18-Month
48.6°F
(9.2°C)
47.6°F
(8.7°C)
1.0°F
(0.5°C)
95th Coolest Coolest since: 1930 1979
29th Warmest Warmest since: 1922 2017
Ties: 1976, 1998, 2001
Jun 1929–May 1931
24-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1930 1905
56th Warmest Warmest since: 1923 2017
Ties: 1953, 1985
Jun 1928–May 1931
36-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
43rd Coolest Coolest since: 1930 1979
80th Warmest Warmest since: 1925 2018
Ties: 1903, 1909, 1910, 1925, 1951, 1959, 1965, 1967, 1996
Jun 1927–May 1931
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1930 1980
81st Warmest Warmest since: 1925 2019
Ties: 1909, 1911, 1914, 1921, 1953, 1966, 1983
Jun 1926–May 1931
60-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
42nd Coolest Coolest since: 1930 1906, 1907, 1908, 1981
79th Warmest Warmest since: 1926 2002
Ties: 1911, 1917, 1952, 1960, 1967, 1968, 1984

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 21, 2019 from https://www.ncdc.noaa.gov/cag/