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


Illinois

Average Temperature Rankings, October 1951

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
October 1951
1-Month
55.9°F
(13.3°C)
54.6°F
(12.6°C)
1.3°F
(0.7°C)
87th Coolest Coolest since: 1948 1925
40th Warmest Warmest since: 1950 1963
Sep–Oct 1951
2-Month
59.4°F
(15.2°C)
60.5°F
(15.8°C)
-1.1°F
(-0.6°C)
39th Coolest Coolest since: 1949 1917
88th Warmest Warmest since: 1950 1897, 2016
Ties: 1903, 1995, 2011
Aug–Oct 1951
3-Month
63.5°F
(17.5°C)
64.7°F
(18.2°C)
-1.2°F
(-0.7°C)
23rd Coolest Coolest since: 1929 1917
104th Warmest Warmest since: 1950 1947
Ties: 1909, 2020
Jul–Oct 1951
4-Month
66.2°F
(19.0°C)
67.5°F
(19.7°C)
-1.3°F
(-0.7°C)
20th Coolest Coolest since: 1950 1917
107th Warmest Warmest since: 1950 1936
Ties: 1929, 1950, 1952, 1993
Jun–Oct 1951
5-Month
66.7°F
(19.3°C)
68.3°F
(20.2°C)
-1.6°F
(-0.9°C)
16th Coolest Coolest since: 1945 1917
111th Warmest Warmest since: 1950 1936
Ties: 1929
May–Oct 1951
6-Month
66.2°F
(19.0°C)
67.2°F
(19.6°C)
-1.0°F
(-0.6°C)
21st Coolest Coolest since: 1945 1917
106th Warmest Warmest since: 1950 1936
Ties: 1989
Apr–Oct 1951
7-Month
63.6°F
(17.6°C)
65.0°F
(18.3°C)
-1.4°F
(-0.7°C)
15th Coolest Coolest since: 1950 1917
112th Warmest Warmest since: 1949 2010
Ties: 1961
Mar–Oct 1951
8-Month
60.2°F
(15.7°C)
61.8°F
(16.6°C)
-1.6°F
(-0.9°C)
7th Coolest Coolest since: 1950 1917
120th Warmest Warmest since: 1949 2012
Ties: 1909, 1915, 1960, 1996
Feb–Oct 1951
9-Month
56.8°F
(13.8°C)
58.2°F
(14.6°C)
-1.4°F
(-0.8°C)
16th Coolest Coolest since: 1950 1917
111th Warmest Warmest since: 1949 2012
Ties: 1982, 1989, 1993
Jan–Oct 1951
10-Month
53.7°F
(12.1°C)
54.9°F
(12.7°C)
-1.2°F
(-0.6°C)
19th Coolest Coolest since: 1940 1904
108th Warmest Warmest since: 1950 2012
Ties: 1918
Dec 1950–Oct 1951
11-Month
50.8°F
(10.4°C)
52.6°F
(11.4°C)
-1.8°F
(-1.0°C)
10th Coolest Coolest since: 1918 1904
116th Warmest Warmest since: 1950 2012
Nov 1950–Oct 1951
12-Month
49.4°F
(9.7°C)
51.6°F
(10.9°C)
-2.2°F
(-1.2°C)
7th Coolest Coolest since: 1917 1904
119th Warmest Warmest since: 1950 2012
May 1950–Oct 1951
18-Month
55.1°F
(12.8°C)
56.8°F
(13.8°C)
-1.7°F
(-1.0°C)
4th Coolest Coolest since: 1918 1904
122nd Warmest Warmest since: 1950 2012
Nov 1949–Oct 1951
24-Month
50.5°F
(10.3°C)
51.6°F
(10.9°C)
-1.1°F
(-0.6°C)
10th Coolest Coolest since: 1918 1905
115th Warmest Warmest since: 1950 2017
Ties: 1903, 1912, 1913, 1952
Nov 1948–Oct 1951
36-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
31st Coolest Coolest since: 1929 1904, 1979
93rd Warmest Warmest since: 1950 2018
Ties: 1899, 1909, 1920, 1925, 1927, 1964, 1997
Nov 1947–Oct 1951
48-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
28th Coolest Coolest since: 1929 1905
95th Warmest Warmest since: 1950 2019
Ties: 1903, 1913, 1915, 1928, 1960, 1964, 1965, 1997
Nov 1946–Oct 1951
60-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
42nd Coolest Coolest since: 1930 1905, 1906
80th Warmest Warmest since: 1950 2002, 2020
Ties: 1915, 1921, 1926, 1973, 1996

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published April 2021, retrieved on April 11, 2021 from https://www.ncdc.noaa.gov/cag/