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 1900

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1900
1-Month
63.9°F
(17.7°C)
62.1°F
(16.7°C)
1.8°F
(1.0°C)
84th Coolest Coolest since: 1899 1917
42nd Warmest Warmest since: 1896 2018
Ties: 2013
Apr–May 1900
2-Month
58.1°F
(14.5°C)
56.8°F
(13.8°C)
1.3°F
(0.7°C)
89th Coolest Coolest since: 1899 1907
37th Warmest Warmest since: 1896 1896
Mar–May 1900
3-Month
50.0°F
(10.0°C)
51.1°F
(10.6°C)
-1.1°F
(-0.6°C)
39th Coolest Coolest since: 1899 1960
87th Warmest Warmest since: 1898 2012
Ties: 1913, 1979
Feb–May 1900
4-Month
43.1°F
(6.2°C)
45.7°F
(7.6°C)
-2.6°F
(-1.4°C)
15th Coolest Coolest since: 1899 1978
111th Warmest Warmest since: 1898 2012
Jan–May 1900
5-Month
40.5°F
(4.7°C)
41.6°F
(5.3°C)
-1.1°F
(-0.6°C)
32nd Coolest Coolest since: 1899 1978, 1979
94th Warmest Warmest since: 1898 2012
Ties: 2008, 2015
Dec 1899–May 1900
6-Month
38.3°F
(3.5°C)
39.6°F
(4.2°C)
-1.3°F
(-0.7°C)
25th Coolest Coolest since: 1899 1978
100th Warmest Warmest since: 1898 2012
Nov 1899–May 1900
7-Month
39.2°F
(4.0°C)
39.7°F
(4.3°C)
-0.5°F
(-0.3°C)
40th Coolest Coolest since: 1899 1904
85th Warmest Warmest since: 1898 2012
Ties: 1907, 1915, 1937, 1956, 2008
Oct 1899–May 1900
8-Month
41.6°F
(5.3°C)
41.6°F
(5.3°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1899 1904, 1978
70th Warmest Warmest since: 1898 2012
Ties: 1913, 1923, 1927, 1944, 1952, 2009
Sep 1899–May 1900
9-Month
44.2°F
(6.8°C)
44.4°F
(6.9°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 1899 1904
75th Warmest Warmest since: 1898 2012
Ties: 1937, 1947, 1961, 1967, 1989
Aug 1899–May 1900
10-Month
47.3°F
(8.5°C)
47.3°F
(8.5°C)
0.0°F
(0.0°C)
57th Coolest Coolest since: 1899 1904
68th Warmest Warmest since: 1898 2012
Jul 1899–May 1900
11-Month
49.8°F
(9.9°C)
49.9°F
(9.9°C)
-0.1°F
(0.0°C)
56th Coolest Coolest since: 1899 1904
69th Warmest Warmest since: 1898 2012
Ties: 1944, 2010
Jun 1899–May 1900
12-Month
51.7°F
(10.9°C)
51.7°F
(10.9°C)
0.0°F
(0.0°C)
60th Coolest Coolest since: 1899 1904
65th Warmest Warmest since: 1898 2012
Ties: 1901, 1911, 2010
Dec 1898–May 1900
18-Month
46.5°F
(8.1°C)
47.6°F
(8.7°C)
-1.1°F
(-0.6°C)
16th Coolest Coolest since: 1899 1979
108th Warmest Warmest since: 1898 2017
Ties: 1906, 1916, 1917
Jun 1898–May 1900
24-Month
50.6°F
(10.3°C)
51.6°F
(10.9°C)
-1.0°F
(-0.6°C)
13th Coolest Coolest to Date 1905
111th Warmest Warmest since: 1899 2017
Ties: 1912, 1919, 1969, 1970, 1971, 1997
Jun 1897–May 1900
36-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
33rd Coolest Coolest since: 1899 1979
90th Warmest Warmest since: 1898 2018
Ties: 1908, 1929, 1977, 1982, 1995
Jun 1896–May 1900
48-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
24th Coolest Coolest to Date 1980
98th Warmest Warmest since: 1899 2019
Ties: 1927, 1930, 1968, 1996, 1997
Jun 1895–May 1900
60-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest to Date 1906, 1907, 1908, 1981
87th Warmest Warmest to Date 2002
Ties: 1902, 1910, 1914, 1916, 1965, 1966, 1973

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/