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 1901

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1901
1-Month
60.8°F
(16.0°C)
62.1°F
(16.7°C)
-1.3°F
(-0.7°C)
41st Coolest Coolest since: 1897 1917
85th Warmest Warmest since: 1900 2018
Ties: 1978
Apr–May 1901
2-Month
54.9°F
(12.7°C)
56.8°F
(13.8°C)
-1.9°F
(-1.1°C)
21st Coolest Coolest since: 1897 1907
105th Warmest Warmest since: 1900 1896
Ties: 1928, 1990
Mar–May 1901
3-Month
49.3°F
(9.6°C)
51.1°F
(10.6°C)
-1.8°F
(-1.0°C)
23rd Coolest Coolest since: 1897 1960
103rd Warmest Warmest since: 1900 2012
Feb–May 1901
4-Month
42.2°F
(5.7°C)
45.6°F
(7.6°C)
-3.4°F
(-1.9°C)
8th Coolest Coolest since: 1899 1978
118th Warmest Warmest since: 1900 2012
Ties: 1912
Jan–May 1901
5-Month
39.5°F
(4.2°C)
41.6°F
(5.3°C)
-2.1°F
(-1.1°C)
17th Coolest Coolest since: 1899 1978, 1979
109th Warmest Warmest since: 1900 2012
Ties: 1958, 1963
Dec 1900–May 1901
6-Month
38.0°F
(3.3°C)
39.6°F
(4.2°C)
-1.6°F
(-0.9°C)
18th Coolest Coolest since: 1899 1978
107th Warmest Warmest since: 1900 2012
Ties: 1970, 1996
Nov 1900–May 1901
7-Month
38.2°F
(3.4°C)
39.7°F
(4.3°C)
-1.5°F
(-0.9°C)
21st Coolest Coolest since: 1899 1904
104th Warmest Warmest since: 1900 2012
Ties: 1926, 1977
Oct 1900–May 1901
8-Month
41.0°F
(5.0°C)
41.6°F
(5.3°C)
-0.6°F
(-0.3°C)
36th Coolest Coolest since: 1899 1904, 1978
89th Warmest Warmest since: 1900 2012
Ties: 1910, 1937, 1962
Sep 1900–May 1901
9-Month
44.0°F
(6.7°C)
44.3°F
(6.8°C)
-0.3°F
(-0.1°C)
39th Coolest Coolest since: 1899 1904
86th Warmest Warmest since: 1900 2012
Ties: 1906, 1952
Aug 1900–May 1901
10-Month
47.5°F
(8.6°C)
47.2°F
(8.4°C)
0.3°F
(0.2°C)
67th Coolest Coolest since: 1900 1904
58th Warmest Warmest since: 1898 2012
Ties: 1911, 1928, 1945
Jul 1900–May 1901
11-Month
50.0°F
(10.0°C)
49.9°F
(9.9°C)
0.1°F
(0.1°C)
66th Coolest Coolest since: 1900 1904
59th Warmest Warmest since: 1898 2012
Ties: 1915, 1923, 1927, 1945, 1986
Jun 1900–May 1901
12-Month
51.7°F
(10.9°C)
51.7°F
(10.9°C)
0.0°F
(0.0°C)
60th Coolest Coolest since: 1900 1904
65th Warmest Warmest since: 1900 2012
Ties: 1900, 1911, 2010
Dec 1899–May 1901
18-Month
47.2°F
(8.4°C)
47.6°F
(8.7°C)
-0.4°F
(-0.3°C)
42nd Coolest Coolest since: 1900 1979
82nd Warmest Warmest since: 1898 2017
Ties: 1908, 1911, 1919, 1937, 1966
Jun 1899–May 1901
24-Month
51.7°F
(10.9°C)
51.7°F
(10.9°C)
0.0°F
(0.0°C)
65th Coolest Coolest since: 1900 1905
59th Warmest Warmest to Date 2017
Ties: 1941, 1958, 1981, 1996, 2010
Jun 1898–May 1901
36-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
23rd Coolest Coolest since: 1899 1979
100th Warmest Warmest since: 1900 2018
Ties: 1917, 1930, 1962, 1968, 1981
Jun 1897–May 1901
48-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
33rd Coolest Coolest since: 1900 1980
89th Warmest Warmest to Date 2019
Ties: 1910, 1952, 1960, 1964, 1965, 1972, 1973
Jun 1896–May 1901
60-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
29th Coolest Coolest to Date 1906, 1907, 1908, 1981
92nd Warmest Warmest since: 1900 2002
Ties: 1921, 1927, 1961, 1964

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 19, 2019 from https://www.ncdc.noaa.gov/cag/