Climate at a Glance

Divisional 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 March 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 1900

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1900
1-Month
66.0°F
(18.9°C)
65.1°F
(18.4°C)
0.9°F
(0.5°C)
75th Coolest Coolest since: 1898 1917, 1924
52nd Warmest Warmest since: 1899 2018
Ties: 1937, 1951, 2017
Apr–May 1900
2-Month
60.6°F
(15.9°C)
60.2°F
(15.7°C)
0.4°F
(0.2°C)
61st Coolest Coolest since: 1898 1907
66th Warmest Warmest since: 1899 1896
Ties: 1969, 2002
Mar–May 1900
3-Month
54.2°F
(12.3°C)
55.0°F
(12.8°C)
-0.8°F
(-0.5°C)
42nd Coolest Coolest since: 1899 1960
85th Warmest Warmest since: 1898 2012
Ties: 1916, 1952
Feb–May 1900
4-Month
47.8°F
(8.8°C)
50.0°F
(10.0°C)
-2.2°F
(-1.2°C)
17th Coolest Coolest since: 1899 1978
110th Warmest Warmest since: 1898 2012
Ties: 1914
Jan–May 1900
5-Month
45.2°F
(7.3°C)
46.2°F
(7.9°C)
-1.0°F
(-0.6°C)
33rd Coolest Coolest since: 1899 1978
94th Warmest Warmest since: 1898 2012
Ties: 1996
Dec 1899–May 1900
6-Month
42.8°F
(6.0°C)
44.2°F
(6.8°C)
-1.4°F
(-0.8°C)
23rd Coolest Coolest since: 1899 1978
103rd Warmest Warmest since: 1898 2012
Ties: 1910
Nov 1899–May 1900
7-Month
43.7°F
(6.5°C)
44.4°F
(6.9°C)
-0.7°F
(-0.4°C)
39th Coolest Coolest since: 1899 1978
87th Warmest Warmest since: 1898 2012
Ties: 1937, 1994
Oct 1899–May 1900
8-Month
45.8°F
(7.7°C)
46.0°F
(7.8°C)
-0.2°F
(-0.1°C)
48th Coolest Coolest since: 1899 1978
78th Warmest Warmest since: 1898 2012
Ties: 1910, 1931, 1988
Sep 1899–May 1900
9-Month
48.3°F
(9.1°C)
48.6°F
(9.2°C)
-0.3°F
(-0.1°C)
44th Coolest Coolest since: 1899 1978
82nd Warmest Warmest since: 1898 2012
Ties: 1989
Aug 1899–May 1900
10-Month
51.3°F
(10.7°C)
51.3°F
(10.7°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1899 1978
71st Warmest Warmest since: 1898 2012
Ties: 1910, 1967
Jul 1899–May 1900
11-Month
53.5°F
(11.9°C)
53.7°F
(12.1°C)
-0.2°F
(-0.2°C)
48th Coolest Coolest since: 1899 1918
78th Warmest Warmest since: 1898 2012
Ties: 1907, 1952
Jun 1899–May 1900
12-Month
55.3°F
(12.9°C)
55.4°F
(13.0°C)
-0.1°F
(-0.1°C)
51st Coolest Coolest since: 1899 1904, 1918
75th Warmest Warmest since: 1898 2012
Ties: 1908, 1910, 1911, 1943, 2010
Dec 1898–May 1900
18-Month
50.4°F
(10.2°C)
51.7°F
(10.9°C)
-1.3°F
(-0.7°C)
11th Coolest Coolest since: 1899 1979
114th Warmest Warmest since: 1898 2017
Jun 1898–May 1900
24-Month
54.2°F
(12.3°C)
55.3°F
(12.9°C)
-1.1°F
(-0.6°C)
9th Coolest Coolest to Date 1905, 1978
116th Warmest Warmest since: 1899 2017
Ties: 1913, 1952, 1970, 2015
Jun 1897–May 1900
36-Month
54.9°F
(12.7°C)
55.3°F
(12.9°C)
-0.4°F
(-0.2°C)
28th Coolest Coolest since: 1899 1979
96th Warmest Warmest since: 1898 2018
Ties: 1914, 1982, 2015
Jun 1896–May 1900
48-Month
54.9°F
(12.7°C)
55.4°F
(13.0°C)
-0.5°F
(-0.3°C)
23rd Coolest Coolest to Date 1980
100th Warmest Warmest since: 1899 2019
Ties: 1929, 1930, 1964, 1985, 1996
Jun 1895–May 1900
60-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
29th Coolest Coolest to Date 1979, 1980, 1981
93rd Warmest Warmest to Date 2020
Ties: 1901, 1913, 1921, 1965

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published April 2021, retrieved on April 21, 2021 from https://www.ncdc.noaa.gov/cag/