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 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, May 1902

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1902
1-Month
66.2°F
(19.0°C)
62.1°F
(16.7°C)
4.1°F
(2.3°C)
109th Coolest Coolest since: 1901 1917
18th Warmest Warmest since: 1896 2018
Ties: 1918
Apr–May 1902
2-Month
57.8°F
(14.3°C)
56.9°F
(13.8°C)
0.9°F
(0.5°C)
82nd Coolest Coolest since: 1901 1907
45th Warmest Warmest since: 1900 1896
Ties: 1963, 1969, 1981, 2018
Mar–May 1902
3-Month
52.4°F
(11.3°C)
51.1°F
(10.6°C)
1.3°F
(0.7°C)
87th Coolest Coolest since: 1901 1960
40th Warmest Warmest since: 1896 2012
Ties: 1936, 1941
Feb–May 1902
4-Month
44.1°F
(6.7°C)
45.7°F
(7.6°C)
-1.6°F
(-0.9°C)
32nd Coolest Coolest since: 1901 1978
95th Warmest Warmest since: 1898 2012
Jan–May 1902
5-Month
40.4°F
(4.7°C)
41.6°F
(5.3°C)
-1.2°F
(-0.6°C)
29th Coolest Coolest since: 1901 1978, 1979
98th Warmest Warmest since: 1900 2012
Ties: 1923, 1994
Dec 1901–May 1902
6-Month
37.7°F
(3.2°C)
39.6°F
(4.2°C)
-1.9°F
(-1.0°C)
17th Coolest Coolest since: 1899 1978
109th Warmest Warmest since: 1901 2012
Nov 1901–May 1902
7-Month
37.6°F
(3.1°C)
39.8°F
(4.3°C)
-2.2°F
(-1.2°C)
13th Coolest Coolest since: 1899 1904
113th Warmest Warmest since: 1901 2012
Ties: 1917, 1960, 1996
Oct 1901–May 1902
8-Month
39.8°F
(4.3°C)
41.6°F
(5.3°C)
-1.8°F
(-1.0°C)
17th Coolest Coolest since: 1899 1904, 1978
109th Warmest Warmest since: 1901 2012
Ties: 1982, 1996
Sep 1901–May 1902
9-Month
42.7°F
(5.9°C)
44.4°F
(6.9°C)
-1.7°F
(-1.0°C)
16th Coolest Coolest since: 1899 1904
110th Warmest Warmest since: 1901 2012
Ties: 1926, 1960, 1970, 1984
Aug 1901–May 1902
10-Month
45.8°F
(7.7°C)
47.2°F
(8.4°C)
-1.4°F
(-0.7°C)
15th Coolest Coolest since: 1899 1904
111th Warmest Warmest since: 1901 2012
Ties: 1917, 1926, 1963, 1970
Jul 1901–May 1902
11-Month
49.1°F
(9.5°C)
49.9°F
(9.9°C)
-0.8°F
(-0.4°C)
31st Coolest Coolest since: 1899 1904
95th Warmest Warmest since: 1901 2012
Ties: 1943, 1969
Jun 1901–May 1902
12-Month
51.2°F
(10.7°C)
51.7°F
(10.9°C)
-0.5°F
(-0.2°C)
41st Coolest Coolest since: 1899 1904
85th Warmest Warmest since: 1901 2012
Ties: 1906, 1907, 1908, 1913, 1947, 1961, 1984, 2001
Dec 1900–May 1902
18-Month
46.8°F
(8.2°C)
47.6°F
(8.7°C)
-0.8°F
(-0.5°C)
25th Coolest Coolest since: 1900 1979
100th Warmest Warmest since: 1901 2017
Ties: 1924, 1994
Jun 1900–May 1902
24-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1900 1905
84th Warmest Warmest since: 1901 2017
Ties: 1897, 1910, 1911, 1924, 1928, 1936, 1944, 1964, 1966, 1967, 1982
Jun 1899–May 1902
36-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
53rd Coolest Coolest since: 1901 1979
71st Warmest Warmest since: 1898 2018
Ties: 1911, 1994, 1998
Jun 1898–May 1902
48-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
19th Coolest Coolest to Date 1980
104th Warmest Warmest since: 1901 2019
Ties: 1912, 1929, 1962, 1969
Jun 1897–May 1902
60-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1901 1906, 1907, 1908, 1981
88th Warmest Warmest since: 1900 2020
Ties: 1900, 1910, 1914, 1916, 1965, 1966, 1973

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2020, retrieved on September 29, 2020 from https://www.ncdc.noaa.gov/cag/