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 July 2022. For more information, please see Climatological Rankings.
Illinois
Average Temperature Rankings, October 2020
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2021) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
October 2020 1-Month |
52.0°F (11.1°C) | 54.6°F (12.6°C) |
-2.6°F (-1.5°C) | 23rd Coolest | Coolest since: 2009 | 1925 |
| 105th Warmest | Warmest since: 2019 | 1963 | ||||
| Ties: 1977 | ||||||
|
Sep–Oct 2020 2-Month |
58.8°F (14.9°C) | 60.4°F (15.8°C) |
-1.6°F (-0.9°C) | 25th Coolest | Coolest since: 2012 | 1917 |
| 103rd Warmest | Warmest since: 2019 | 1897, 2016 | ||||
| Ties: 1949 | ||||||
|
Aug–Oct 2020 3-Month |
63.5°F (17.5°C) | 64.8°F (18.2°C) |
-1.3°F (-0.7°C) | 23rd Coolest | Coolest since: 2009 | 1917 |
| 105th Warmest | Warmest since: 2019 | 1947 | ||||
| Ties: 1909, 1951 | ||||||
|
Jul–Oct 2020 4-Month |
66.9°F (19.4°C) | 67.4°F (19.7°C) |
-0.5°F (-0.3°C) | 47th Coolest | Coolest since: 2014 | 1917 |
| 81st Warmest | Warmest since: 2019 | 1936 | ||||
| Ties: 1985, 2008 | ||||||
|
Jun–Oct 2020 5-Month |
68.3°F (20.2°C) | 68.3°F (20.2°C) |
0.0°F (0.0°C) | 71st Coolest | Coolest since: 2014 | 1917 |
| 57th Warmest | Warmest since: 2019 | 1936 | ||||
| Ties: 1932, 1952, 1970, 1987 | ||||||
|
May–Oct 2020 6-Month |
67.0°F (19.4°C) | 67.2°F (19.6°C) |
-0.2°F (-0.2°C) | 53rd Coolest | Coolest since: 2014 | 1917 |
| 75th Warmest | Warmest since: 2019 | 1936 | ||||
| Ties: 1926, 1960 | ||||||
|
Apr–Oct 2020 7-Month |
64.5°F (18.1°C) | 65.0°F (18.3°C) |
-0.5°F (-0.2°C) | 37th Coolest | Coolest since: 2009 | 1917 |
| 91st Warmest | Warmest since: 2019 | 2010 | ||||
| Ties: 1898, 1969, 2003, 2008 | ||||||
|
Mar–Oct 2020 8-Month |
62.0°F (16.7°C) | 61.8°F (16.6°C) |
0.2°F (0.1°C) | 65th Coolest | Coolest since: 2014 | 1917 |
| 63rd Warmest | Warmest since: 2019 | 2012 | ||||
|
Feb–Oct 2020 9-Month |
58.6°F (14.8°C) | 58.2°F (14.6°C) |
0.4°F (0.2°C) | 78th Coolest | Coolest since: 2015 | 1917 |
| 50th Warmest | Warmest since: 2019 | 2012 | ||||
| Ties: 1897, 1952, 1964 | ||||||
|
Jan–Oct 2020 10-Month |
56.0°F (13.3°C) | 55.0°F (12.8°C) |
1.0°F (0.5°C) | 93rd Coolest | Coolest since: 2019 | 1904 |
| 35th Warmest | Warmest since: 2018 | 2012 | ||||
| Ties: 2018 | ||||||
|
Dec 2019–Oct 2020 11-Month |
54.1°F (12.3°C) | 52.6°F (11.4°C) |
1.5°F (0.9°C) | 101st Coolest | Coolest since: 2019 | 1904 |
| 26th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1922, 1939 | ||||||
|
Nov 2019–Oct 2020 12-Month |
52.6°F (11.4°C) | 51.6°F (10.9°C) |
1.0°F (0.5°C) | 94th Coolest | Coolest since: 2019 | 1904 |
| 33rd Warmest | Warmest since: 2018 | 2012 | ||||
| Ties: 1988, 2018 | ||||||
|
May 2019–Oct 2020 18-Month |
57.8°F (14.3°C) | 56.8°F (13.8°C) |
1.0°F (0.5°C) | 97th Coolest | Coolest since: 2018 | 1904 |
| 30th Warmest | Warmest since: 2019 | 2012 | ||||
| Ties: 1941, 1988, 2011, 2013, 2018 | ||||||
|
Nov 2018–Oct 2020 24-Month |
52.3°F (11.3°C) | 51.6°F (10.9°C) |
0.7°F (0.4°C) | 90th Coolest | Coolest since: 2019 | 1905 |
| 36th Warmest | Warmest since: 2019 | 2017 | ||||
| Ties: 1947, 2019 | ||||||
|
Nov 2017–Oct 2020 36-Month |
52.4°F (11.3°C) | 51.6°F (10.9°C) |
0.8°F (0.4°C) | 93rd Coolest | Coolest since: 2016 | 1904, 1979 |
| 32nd Warmest | Warmest since: 2019 | 2018 | ||||
| Ties: 1940, 1987 | ||||||
|
Nov 2016–Oct 2020 48-Month |
53.0°F (11.7°C) | 51.6°F (10.9°C) |
1.4°F (0.8°C) | 109th Coolest | Coolest since: 2017 | 1905 |
| 15th Warmest | Warmest since: 2019 | 2019 | ||||
| Ties: 1935 | ||||||
|
Nov 2015–Oct 2020 60-Month |
53.5°F (11.9°C) | 51.6°F (10.9°C) |
1.9°F (1.0°C) | 122nd Coolest | Coolest since: 2019 | 1905, 1906 |
| 1st Warmest | Warmest since: 2002 | 2002, 2020 | ||||
| Ties: 2002 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2022, retrieved on August 19, 2022 from https://www.ncei.noaa.gov/cag/