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 1975

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1975
1-Month
67.6°F
(19.8°C)
65.1°F
(18.4°C)
2.5°F
(1.4°C)
102nd Coolest Coolest since: 1974 1917, 1924
25th Warmest Warmest since: 1970 2018
Apr–May 1975
2-Month
60.8°F
(16.0°C)
60.1°F
(15.6°C)
0.7°F
(0.4°C)
69th Coolest Coolest since: 1973 1907
58th Warmest Warmest since: 1974 1896
Ties: 1895, 1927, 1967, 1972, 2003
Mar–May 1975
3-Month
53.9°F
(12.2°C)
55.0°F
(12.8°C)
-1.1°F
(-0.6°C)
37th Coolest Coolest since: 1971 1960
90th Warmest Warmest since: 1974 2012
Ties: 1913, 1932, 1966
Feb–May 1975
4-Month
49.0°F
(9.4°C)
49.9°F
(9.9°C)
-0.9°F
(-0.5°C)
42nd Coolest Coolest since: 1971 1978
85th Warmest Warmest since: 1974 2012
Ties: 1897, 1928, 1934, 1996
Jan–May 1975
5-Month
46.2°F
(7.9°C)
46.1°F
(7.8°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 1971 1978
69th Warmest Warmest since: 1974 2012
Ties: 1909, 1943
Dec 1974–May 1975
6-Month
44.4°F
(6.9°C)
44.2°F
(6.8°C)
0.2°F
(0.1°C)
65th Coolest Coolest since: 1973 1978
61st Warmest Warmest since: 1974 2012
Ties: 1903, 1907, 1973
Nov 1974–May 1975
7-Month
44.6°F
(7.0°C)
44.3°F
(6.8°C)
0.3°F
(0.2°C)
68th Coolest Coolest since: 1973 1978
58th Warmest Warmest since: 1974 2012
Ties: 1927, 1959, 1966, 1985
Oct 1974–May 1975
8-Month
46.0°F
(7.8°C)
45.9°F
(7.7°C)
0.1°F
(0.1°C)
55th Coolest Coolest since: 1973 1978
71st Warmest Warmest since: 1974 2012
Ties: 1928, 1930, 1965, 1966
Sep 1974–May 1975
9-Month
47.9°F
(8.8°C)
48.6°F
(9.2°C)
-0.7°F
(-0.4°C)
35th Coolest Coolest since: 1970 1978
91st Warmest Warmest since: 1974 2012
Ties: 1961
Aug 1974–May 1975
10-Month
50.5°F
(10.3°C)
51.3°F
(10.7°C)
-0.8°F
(-0.4°C)
30th Coolest Coolest since: 1970 1978
96th Warmest Warmest since: 1974 2012
Ties: 1996
Jul 1974–May 1975
11-Month
53.1°F
(11.7°C)
53.7°F
(12.1°C)
-0.6°F
(-0.4°C)
33rd Coolest Coolest since: 1973 1918
93rd Warmest Warmest since: 1974 2012
Ties: 1929, 1961, 1971, 1994
Jun 1974–May 1975
12-Month
54.4°F
(12.4°C)
55.3°F
(12.9°C)
-0.9°F
(-0.5°C)
22nd Coolest Coolest since: 1970 1904, 1918
104th Warmest Warmest since: 1974 2012
Ties: 1929
Dec 1973–May 1975
18-Month
51.6°F
(10.9°C)
51.7°F
(10.9°C)
-0.1°F
(0.0°C)
51st Coolest Coolest since: 1971 1979
74th Warmest Warmest since: 1974 2017
Ties: 1927, 1937, 1965, 1967
Jun 1973–May 1975
24-Month
55.7°F
(13.2°C)
55.3°F
(12.9°C)
0.4°F
(0.3°C)
79th Coolest Coolest since: 1973 1905, 1978
46th Warmest Warmest since: 1974 2017
Ties: 1940, 1949, 1965, 1973, 1989
Jun 1972–May 1975
36-Month
55.4°F
(13.0°C)
55.4°F
(13.0°C)
0.0°F
(0.0°C)
54th Coolest Coolest since: 1973 1979
70th Warmest Warmest since: 1974 2018
Ties: 1909, 1925, 1927, 1967, 1973, 1986
Jun 1971–May 1975
48-Month
55.7°F
(13.2°C)
55.3°F
(12.9°C)
0.4°F
(0.3°C)
72nd Coolest Coolest since: 1973 1980
51st Warmest Warmest since: 1974 2019
Ties: 1943, 1954, 1987, 1994
Jun 1970–May 1975
60-Month
55.5°F
(13.1°C)
55.3°F
(12.9°C)
0.2°F
(0.2°C)
59th Coolest Coolest since: 1974 1979, 1980, 1981
63rd Warmest Warmest since: 1959 2020
Ties: 1922, 1947

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/