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 1909

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1909
1-Month
59.4°F
(15.2°C)
62.1°F
(16.7°C)
-2.7°F
(-1.5°C)
31st Coolest Coolest since: 1907 1917
95th Warmest Warmest since: 1908 2018
Ties: 1960
Apr–May 1909
2-Month
54.4°F
(12.4°C)
56.9°F
(13.8°C)
-2.5°F
(-1.4°C)
12th Coolest Coolest since: 1907 1907
114th Warmest Warmest since: 1908 1896
Ties: 1924
Mar–May 1909
3-Month
48.9°F
(9.4°C)
51.1°F
(10.6°C)
-2.2°F
(-1.2°C)
15th Coolest Coolest since: 1907 1960
111th Warmest Warmest since: 1908 2012
Ties: 1961, 1983
Feb–May 1909
4-Month
44.9°F
(7.2°C)
45.7°F
(7.6°C)
-0.8°F
(-0.4°C)
44th Coolest Coolest since: 1907 1978
82nd Warmest Warmest since: 1908 2012
Ties: 1965, 1967
Jan–May 1909
5-Month
41.5°F
(5.3°C)
41.6°F
(5.3°C)
-0.1°F
(0.0°C)
58th Coolest Coolest since: 1907 1978, 1979
68th Warmest Warmest since: 1908 2012
Ties: 2013
Dec 1908–May 1909
6-Month
39.8°F
(4.3°C)
39.6°F
(4.2°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1907 1978
59th Warmest Warmest since: 1908 2012
Ties: 1903
Nov 1908–May 1909
7-Month
40.1°F
(4.5°C)
39.7°F
(4.3°C)
0.4°F
(0.2°C)
71st Coolest Coolest since: 1907 1904
54th Warmest Warmest since: 1908 2012
Ties: 1911, 1964, 1973
Oct 1908–May 1909
8-Month
41.8°F
(5.4°C)
41.6°F
(5.3°C)
0.2°F
(0.1°C)
70th Coolest Coolest since: 1907 1904, 1978
55th Warmest Warmest since: 1908 2012
Ties: 1948, 1967, 1988, 2008
Sep 1908–May 1909
9-Month
44.9°F
(7.2°C)
44.4°F
(6.9°C)
0.5°F
(0.3°C)
80th Coolest Coolest since: 1908 1904
45th Warmest Warmest since: 1898 2012
Ties: 1935, 1981, 1990, 2008
Aug 1908–May 1909
10-Month
47.7°F
(8.7°C)
47.2°F
(8.4°C)
0.5°F
(0.3°C)
77th Coolest Coolest since: 1908 1904
48th Warmest Warmest since: 1898 2012
Ties: 1990, 2010
Jul 1908–May 1909
11-Month
50.2°F
(10.1°C)
49.9°F
(9.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1908 1904
52nd Warmest Warmest since: 1898 2012
Ties: 1950, 1990, 2003
Jun 1908–May 1909
12-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1908 1904
59th Warmest Warmest since: 1898 2012
Ties: 1946, 1956
Dec 1907–May 1909
18-Month
48.2°F
(9.0°C)
47.6°F
(8.7°C)
0.6°F
(0.3°C)
85th Coolest Coolest since: 1908 1979
39th Warmest Warmest to Date 2017
Ties: 1915, 1945, 1957, 1989
Jun 1907–May 1909
24-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
53rd Coolest Coolest since: 1908 1905
71st Warmest Warmest since: 1901 2017
Ties: 1898, 1920, 1947
Jun 1906–May 1909
36-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
43rd Coolest Coolest since: 1908 1979
80th Warmest Warmest since: 1903 2018
Ties: 1903, 1910, 1925, 1931, 1951, 1959, 1965, 1967, 1996
Jun 1905–May 1909
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1908 1980
81st Warmest Warmest since: 1903 2019
Ties: 1911, 1914, 1921, 1931, 1953, 1966, 1983
Jun 1904–May 1909
60-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
16th Coolest Coolest since: 1908 1906, 1907, 1908, 1981
105th Warmest Warmest since: 1903 2002
Ties: 1930, 1962, 1972, 1983, 1997

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 22, 2019 from https://www.ncdc.noaa.gov/cag/