Climate at a Glance
Divisional 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, Climate Division 8. Southwest
Average Temperature Rankings, May 2021
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2022) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2021 1-Month |
63.7°F (17.6°C) | 65.1°F (18.4°C) |
-1.4°F (-0.8°C) | 42nd Coolest | Coolest since: 2020 | 1917, 1924 |
| 87th Warmest | Warmest since: 2019 | 2018 | ||||
| Ties: 1920 | ||||||
|
Apr–May 2021 2-Month |
59.6°F (15.3°C) | 60.2°F (15.7°C) |
-0.6°F (-0.4°C) | 39th Coolest | Coolest since: 2020 | 1907 |
| 90th Warmest | Warmest since: 2019 | 1896 | ||||
| Ties: 1943 | ||||||
|
Mar–May 2021 3-Month |
56.7°F (13.7°C) | 55.0°F (12.8°C) |
1.7°F (0.9°C) | 97th Coolest | Coolest since: 2020 | 1960 |
| 32nd Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1922, 1998 | ||||||
|
Feb–May 2021 4-Month |
49.2°F (9.6°C) | 50.0°F (10.0°C) |
-0.8°F (-0.4°C) | 48th Coolest | Coolest since: 2015 | 1978 |
| 81st Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1931, 1961, 1982 | ||||||
|
Jan–May 2021 5-Month |
46.3°F (7.9°C) | 46.2°F (7.9°C) |
0.1°F (0.0°C) | 61st Coolest | Coolest since: 2015 | 1978 |
| 68th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1910 | ||||||
|
Dec 2020–May 2021 6-Month |
44.7°F (7.1°C) | 44.2°F (6.8°C) |
0.5°F (0.3°C) | 70th Coolest | Coolest since: 2015 | 1978 |
| 58th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1989 | ||||||
|
Nov 2020–May 2021 7-Month |
45.5°F (7.5°C) | 44.3°F (6.8°C) |
1.2°F (0.7°C) | 91st Coolest | Coolest since: 2019 | 1978 |
| 37th Warmest | Warmest since: 2020 | 2012 | ||||
|
Oct 2020–May 2021 8-Month |
46.8°F (8.2°C) | 46.0°F (7.8°C) |
0.8°F (0.4°C) | 86th Coolest | Coolest since: 2019 | 1978 |
| 42nd Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1898, 1990 | ||||||
|
Sep 2020–May 2021 9-Month |
49.2°F (9.6°C) | 48.5°F (9.2°C) |
0.7°F (0.4°C) | 84th Coolest | Coolest since: 2015 | 1978 |
| 44th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1911, 1919, 1949 | ||||||
|
Aug 2020–May 2021 10-Month |
51.7°F (10.9°C) | 51.3°F (10.7°C) |
0.4°F (0.2°C) | 74th Coolest | Coolest since: 2015 | 1978 |
| 54th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1911 | ||||||
|
Jul 2020–May 2021 11-Month |
54.3°F (12.4°C) | 53.7°F (12.1°C) |
0.6°F (0.3°C) | 81st Coolest | Coolest since: 2015 | 1918 |
| 47th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1927 | ||||||
|
Jun 2020–May 2021 12-Month |
56.0°F (13.3°C) | 55.3°F (12.9°C) |
0.7°F (0.4°C) | 84th Coolest | Coolest since: 2015 | 1904, 1918 |
| 44th Warmest | Warmest since: 2020 | 2012 | ||||
| Ties: 1923, 1931 | ||||||
|
Dec 2019–May 2021 18-Month |
52.9°F (11.6°C) | 51.6°F (10.9°C) |
1.3°F (0.7°C) | 101st Coolest | Coolest since: 2019 | 1979 |
| 26th Warmest | Warmest since: 2020 | 2017 | ||||
| Ties: 1987 | ||||||
|
Jun 2019–May 2021 24-Month |
56.4°F (13.6°C) | 55.4°F (13.0°C) |
1.0°F (0.6°C) | 103rd Coolest | Coolest since: 2019 | 1905, 1978 |
| 24th Warmest | Warmest since: 2020 | 2017 | ||||
| Ties: 1934, 2001, 2005, 2016, 2019 | ||||||
|
Jun 2018–May 2021 36-Month |
56.5°F (13.6°C) | 55.4°F (13.0°C) |
1.1°F (0.6°C) | 105th Coolest | Coolest since: 2020 | 1979 |
| 21st Warmest | Warmest since: 2020 | 2018 | ||||
| Ties: 1957, 1992, 2002, 2020 | ||||||
|
Jun 2017–May 2021 48-Month |
56.4°F (13.6°C) | 55.3°F (12.9°C) |
1.1°F (0.7°C) | 103rd Coolest | Coolest since: 2016 | 1980 |
| 22nd Warmest | Warmest since: 2020 | 2019 | ||||
|
Jun 2016–May 2021 60-Month |
57.0°F (13.9°C) | 55.3°F (12.9°C) |
1.7°F (1.0°C) | 122nd Coolest | Coolest since: 2019 | 1979, 1980, 1981 |
| 2nd Warmest | Warmest since: 2020 | 2020 | ||||
| Ties: 1935, 2019 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published August 2022, retrieved on August 15, 2022 from https://www.ncei.noaa.gov/cag/