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 1966

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1966
1-Month
58.0°F
(14.4°C)
62.1°F
(16.7°C)
-4.1°F
(-2.3°C)
9th Coolest Coolest since: 1961 1917
117th Warmest Warmest since: 1965 2018
Ties: 1967
Apr–May 1966
2-Month
53.5°F
(11.9°C)
56.8°F
(13.8°C)
-3.3°F
(-1.9°C)
8th Coolest Coolest since: 1961 1907
118th Warmest Warmest since: 1965 1896
Ties: 1904
Mar–May 1966
3-Month
49.6°F
(9.8°C)
51.1°F
(10.6°C)
-1.5°F
(-0.8°C)
29th Coolest Coolest since: 1961 1960
97th Warmest Warmest since: 1965 2012
Ties: 1899, 1975
Feb–May 1966
4-Month
44.4°F
(6.9°C)
45.6°F
(7.6°C)
-1.2°F
(-0.7°C)
36th Coolest Coolest since: 1960 1978
90th Warmest Warmest since: 1965 2012
Ties: 1951, 1975
Jan–May 1966
5-Month
39.7°F
(4.3°C)
41.6°F
(5.3°C)
-1.9°F
(-1.0°C)
21st Coolest Coolest since: 1963 1978, 1979
105th Warmest Warmest since: 1965 2012
Ties: 1971
Dec 1965–May 1966
6-Month
39.3°F
(4.1°C)
39.6°F
(4.2°C)
-0.3°F
(-0.1°C)
50th Coolest Coolest since: 1965 1978
75th Warmest Warmest since: 1964 2012
Ties: 1906, 1945
Nov 1965–May 1966
7-Month
39.9°F
(4.4°C)
39.7°F
(4.3°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1965 1904
59th Warmest Warmest since: 1964 2012
Ties: 1927, 1930, 1944, 1975
Oct 1965–May 1966
8-Month
41.7°F
(5.4°C)
41.6°F
(5.3°C)
0.1°F
(0.1°C)
65th Coolest Coolest since: 1965 1904, 1978
60th Warmest Warmest since: 1964 2012
Ties: 1945, 1975, 2011
Sep 1965–May 1966
9-Month
44.4°F
(6.9°C)
44.4°F
(6.9°C)
0.0°F
(0.0°C)
57th Coolest Coolest since: 1965 1904
68th Warmest Warmest since: 1964 2012
Ties: 1908, 1916, 1927, 1933, 1973
Aug 1965–May 1966
10-Month
47.1°F
(8.4°C)
47.3°F
(8.5°C)
-0.2°F
(-0.1°C)
46th Coolest Coolest since: 1965 1904
79th Warmest Warmest since: 1964 2012
Ties: 1944, 1959
Jul 1965–May 1966
11-Month
49.5°F
(9.7°C)
49.8°F
(9.9°C)
-0.3°F
(-0.2°C)
45th Coolest Coolest since: 1965 1904
80th Warmest Warmest since: 1965 2012
Ties: 1965, 2001
Jun 1965–May 1966
12-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
50th Coolest Coolest since: 1963 1904
75th Warmest Warmest since: 1965 2012
Ties: 1925, 1973
Dec 1964–May 1966
18-Month
47.2°F
(8.4°C)
47.6°F
(8.7°C)
-0.4°F
(-0.3°C)
42nd Coolest Coolest since: 1963 1979
82nd Warmest Warmest since: 1965 2017
Ties: 1901, 1908, 1911, 1919, 1937
Jun 1964–May 1966
24-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1964 1905
83rd Warmest Warmest since: 1965 2017
Ties: 1897, 1902, 1910, 1911, 1924, 1928, 1936, 1944, 1964, 1967, 1982
Jun 1963–May 1966
36-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1965 1979
56th Warmest Warmest since: 1958 2018
Ties: 1898, 1938, 1947, 1948, 1958, 1973, 1975
Jun 1962–May 1966
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1965 1980
81st Warmest Warmest since: 1959 2019
Ties: 1909, 1911, 1914, 1921, 1931, 1953, 1983
Jun 1961–May 1966
60-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1965 1906, 1907, 1908, 1981
87th Warmest Warmest since: 1965 2002
Ties: 1900, 1902, 1910, 1914, 1916, 1965, 1973

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 21, 2019 from https://www.ncdc.noaa.gov/cag/