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 December 2020. For more information, please see Climatological Rankings.
Illinois
Average Temperature Rankings, August 2020
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
August 2020 1-Month |
72.8°F (22.7°C) | 73.4°F (23.0°C) |
-0.6°F (-0.3°C) | 46th Coolest | Coolest since: 2019 | 1915 |
| 81st Warmest | Warmest since: 2019 | 1947 | ||||
| Ties: 1961, 1989, 2013, 2019 | ||||||
|
Jul–Aug 2020 2-Month |
75.0°F (23.9°C) | 74.5°F (23.6°C) |
0.5°F (0.3°C) | 81st Coolest | Coolest since: 2018 | 1915 |
| 46th Warmest | Warmest since: 2019 | 1936 | ||||
| Ties: 1899, 1940, 2003 | ||||||
|
Jun–Aug 2020 3-Month |
74.5°F (23.6°C) | 73.4°F (23.0°C) |
1.1°F (0.6°C) | 91st Coolest | Coolest since: 2019 | 1915 |
| 36th Warmest | Warmest since: 2018 | 1936 | ||||
| Ties: 1911 | ||||||
|
May–Aug 2020 4-Month |
71.0°F (21.7°C) | 70.6°F (21.4°C) |
0.4°F (0.3°C) | 72nd Coolest | Coolest since: 2019 | 1915 |
| 55th Warmest | Warmest since: 2018 | 1934, 1936 | ||||
| Ties: 1957 | ||||||
|
Apr–Aug 2020 5-Month |
66.8°F (19.3°C) | 66.8°F (19.3°C) |
0.0°F (0.0°C) | 56th Coolest | Coolest since: 2014 | 1907 |
| 71st Warmest | Warmest since: 2019 | 1934 | ||||
|
Mar–Aug 2020 6-Month |
63.0°F (17.2°C) | 62.3°F (16.8°C) |
0.7°F (0.4°C) | 83rd Coolest | Coolest since: 2019 | 1904, 1950, 1960 |
| 44th Warmest | Warmest since: 2018 | 2012 | ||||
| Ties: 1952, 1963 | ||||||
|
Feb–Aug 2020 7-Month |
58.6°F (14.8°C) | 57.6°F (14.2°C) |
1.0°F (0.6°C) | 88th Coolest | Coolest since: 2019 | 1904 |
| 39th Warmest | Warmest since: 2018 | 2012 | ||||
| Ties: 1949 | ||||||
|
Jan–Aug 2020 8-Month |
55.2°F (12.9°C) | 53.5°F (11.9°C) |
1.7°F (1.0°C) | 103rd Coolest | Coolest since: 2019 | 1904, 1912 |
| 24th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1999, 2007 | ||||||
|
Dec 2019–Aug 2020 9-Month |
53.1°F (11.7°C) | 50.9°F (10.5°C) |
2.2°F (1.2°C) | 112th Coolest | Coolest since: 2019 | 1904 |
| 14th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1983, 2000 | ||||||
|
Nov 2019–Aug 2020 10-Month |
51.4°F (10.8°C) | 49.9°F (9.9°C) |
1.5°F (0.9°C) | 100th Coolest | Coolest since: 2019 | 1904 |
| 26th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1976 | ||||||
|
Oct 2019–Aug 2020 11-Month |
51.6°F (10.9°C) | 50.3°F (10.2°C) |
1.3°F (0.7°C) | 99th Coolest | Coolest since: 2019 | 1904 |
| 27th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1941 | ||||||
|
Sep 2019–Aug 2020 12-Month |
53.3°F (11.8°C) | 51.7°F (10.9°C) |
1.6°F (0.9°C) | 109th Coolest | Coolest since: 2019 | 1904 |
| 17th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1955, 1983 | ||||||
|
Mar 2019–Aug 2020 18-Month |
56.2°F (13.4°C) | 55.1°F (12.8°C) |
1.1°F (0.6°C) | 95th Coolest | Coolest since: 2019 | 1904 |
| 31st Warmest | Warmest since: 2018 | 2012 | ||||
| Ties: 1937, 1953, 1998 | ||||||
|
Sep 2018–Aug 2020 24-Month |
52.6°F (11.4°C) | 51.7°F (10.9°C) |
0.9°F (0.5°C) | 97th Coolest | Coolest since: 2019 | 1905 |
| 28th Warmest | Warmest since: 2018 | 2017 | ||||
| Ties: 2001 | ||||||
|
Sep 2017–Aug 2020 36-Month |
52.7°F (11.5°C) | 51.7°F (10.9°C) |
1.0°F (0.6°C) | 103rd Coolest | Coolest since: 2016 | 1979 |
| 21st Warmest | Warmest since: 2019 | 2018 | ||||
| Ties: 1989, 1992 | ||||||
|
Sep 2016–Aug 2020 48-Month |
53.3°F (11.8°C) | 51.6°F (10.9°C) |
1.7°F (0.9°C) | 117th Coolest | Coolest since: 2017 | 1905 |
| 6th Warmest | Warmest since: 2019 | 2019 | ||||
| Ties: 2001, 2008, 2013 | ||||||
|
Sep 2015–Aug 2020 60-Month |
53.7°F (12.1°C) | 51.6°F (10.9°C) |
2.1°F (1.2°C) | 121st Coolest | Coolest since: 2019 | 1906 |
| 1st Warmest | Warmest to Date | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 26, 2021 from https://www.ncdc.noaa.gov/cag/