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 1901

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
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)
42nd 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
106th 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
104th 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
119th 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
110th 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
108th 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
105th 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
90th 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
87th 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
59th 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
60th 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
66th 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
83rd 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)
62nd Coolest Coolest since: 1900 1905
63rd 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
101st 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
90th 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
93rd Warmest Warmest since: 1900 2020
Ties: 1921, 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 20, 2020 from https://www.ncdc.noaa.gov/cag/