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 April 2020. For more information, please see Climatological Rankings.


Illinois

Minimum Temperature Rankings, October 1901

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
October 1901
1-Month
42.2°F
(5.7°C)
42.9°F
(6.1°C)
-0.7°F
(-0.4°C)
45th Coolest Coolest since: 1896 1895
81st Warmest Warmest since: 1900 1947
Ties: 1903, 1929, 2002
Sep–Oct 1901
2-Month
47.2°F
(8.4°C)
48.6°F
(9.2°C)
-1.4°F
(-0.8°C)
25th Coolest Coolest since: 1896 1952
101st Warmest Warmest since: 1900 2016
Ties: 1903, 1923, 1928, 1932, 2003
Aug–Oct 1901
3-Month
51.8°F
(11.0°C)
53.1°F
(11.7°C)
-1.3°F
(-0.7°C)
21st Coolest Coolest since: 1896 1917
105th Warmest Warmest since: 1900 2016
Jul–Oct 1901
4-Month
55.6°F
(13.1°C)
55.8°F
(13.2°C)
-0.2°F
(-0.1°C)
49th Coolest Coolest since: 1896 1917
77th Warmest Warmest since: 1900 2016
Ties: 1940, 1982, 1989, 2003
Jun–Oct 1901
5-Month
56.8°F
(13.8°C)
56.7°F
(13.7°C)
0.1°F
(0.1°C)
68th Coolest Coolest since: 1896 1917
58th Warmest Warmest since: 1900 2016
Ties: 1922, 1942, 1968, 1975, 2001, 2012, 2014
May–Oct 1901
6-Month
55.4°F
(13.0°C)
55.7°F
(13.2°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 1897 1917
82nd Warmest Warmest since: 1900 2016
Ties: 1906, 1920, 1935, 1968
Apr–Oct 1901
7-Month
52.8°F
(11.6°C)
53.4°F
(11.9°C)
-0.6°F
(-0.3°C)
27th Coolest Coolest since: 1895 1917
99th Warmest Warmest since: 1900 2016
Ties: 1916, 1940, 1979, 1996
Mar–Oct 1901
8-Month
49.8°F
(9.9°C)
50.5°F
(10.3°C)
-0.7°F
(-0.4°C)
26th Coolest Coolest since: 1895 1917
100th Warmest Warmest since: 1900 2016
Ties: 1920, 1943, 1997
Feb–Oct 1901
9-Month
45.6°F
(7.6°C)
47.2°F
(8.4°C)
-1.6°F
(-0.8°C)
11th Coolest Coolest since: 1895 1917
115th Warmest Warmest since: 1900 1998
Ties: 1967
Jan–Oct 1901
10-Month
43.0°F
(6.1°C)
44.1°F
(6.7°C)
-1.1°F
(-0.6°C)
18th Coolest Coolest since: 1899 1917
108th Warmest Warmest since: 1900 1998
Ties: 1907, 1958, 1996
Dec 1900–Oct 1901
11-Month
41.1°F
(5.1°C)
42.0°F
(5.6°C)
-0.9°F
(-0.5°C)
21st Coolest Coolest since: 1899 1904
104th Warmest Warmest since: 1900 2016
Ties: 1936
Nov 1900–Oct 1901
12-Month
40.2°F
(4.6°C)
41.2°F
(5.1°C)
-1.0°F
(-0.5°C)
18th Coolest Coolest since: 1899 1904
107th Warmest Warmest since: 1900 2016
Ties: 1924, 1926, 1929
May 1900–Oct 1901
18-Month
46.1°F
(7.8°C)
46.0°F
(7.8°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 1899 1904, 1918
66th Warmest Warmest since: 1900 2016
Ties: 1897, 1927, 1947, 1975, 2003
Nov 1899–Oct 1901
24-Month
41.0°F
(5.0°C)
41.2°F
(5.1°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 1900 1905, 1918
74th Warmest Warmest since: 1898 2017
Ties: 1944
Nov 1898–Oct 1901
36-Month
40.4°F
(4.7°C)
41.1°F
(5.1°C)
-0.7°F
(-0.4°C)
16th Coolest Coolest to Date 1906
107th Warmest Warmest since: 1900 2018
Ties: 1920, 1926, 1963, 1964, 1965
Nov 1897–Oct 1901
48-Month
40.8°F
(4.9°C)
41.2°F
(5.1°C)
-0.4°F
(-0.2°C)
34th Coolest Coolest to Date 1905
88th Warmest Warmest since: 1900 2019
Ties: 1930, 1951, 1952, 1961, 1962
Nov 1896–Oct 1901
60-Month
40.9°F
(4.9°C)
41.1°F
(5.1°C)
-0.2°F
(-0.2°C)
42nd Coolest Coolest to Date 1905
79th Warmest Warmest since: 1900 2002, 2019
Ties: 1972

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published May 2020, retrieved on May 25, 2020 from https://www.ncdc.noaa.gov/cag/