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 February 2021. For more information, please see Climatological Rankings.
Illinois, Climate Division 8. Southwest
Average Temperature Rankings, May 2018
View Period (Months):All1234567891011121824364860
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| Period | Value | 1901-2000 Mean |
Anomaly | Rank (1895-2020) |
Warmest/Coolest Since |
Record |
|---|---|---|---|---|---|---|
|
May 2018 1-Month |
73.1°F (22.8°C) | 65.1°F (18.4°C) |
8.0°F (4.4°C) | 126th Coolest | Coolest since: 2017 | 1917, 1924 |
| 1st Warmest | Warmest to Date | 2018 | ||||
|
Apr–May 2018 2-Month |
61.4°F (16.3°C) | 60.2°F (15.7°C) |
1.2°F (0.6°C) | 89th Coolest | Coolest since: 2016 | 1907 |
| 38th Warmest | Warmest since: 2017 | 1896 | ||||
| Ties: 1938, 1948, 1974 | ||||||
|
Mar–May 2018 3-Month |
55.5°F (13.1°C) | 55.0°F (12.8°C) |
0.5°F (0.3°C) | 71st Coolest | Coolest since: 2014 | 1960 |
| 56th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1953, 1957, 2019, 2020 | ||||||
|
Feb–May 2018 4-Month |
51.4°F (10.8°C) | 50.0°F (10.0°C) |
1.4°F (0.8°C) | 89th Coolest | Coolest since: 2015 | 1978 |
| 38th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1908, 1990 | ||||||
|
Jan–May 2018 5-Month |
46.7°F (8.2°C) | 46.1°F (7.8°C) |
0.6°F (0.4°C) | 71st Coolest | Coolest since: 2015 | 1978 |
| 56th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1903 | ||||||
|
Dec 2017–May 2018 6-Month |
44.8°F (7.1°C) | 44.3°F (6.8°C) |
0.5°F (0.3°C) | 73rd Coolest | Coolest since: 2015 | 1978 |
| 53rd Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1909, 1983, 1985 | ||||||
|
Nov 2017–May 2018 7-Month |
45.0°F (7.2°C) | 44.3°F (6.8°C) |
0.7°F (0.4°C) | 80th Coolest | Coolest since: 2015 | 1978 |
| 46th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1941, 1983, 1988, 1990, 2019 | ||||||
|
Oct 2017–May 2018 8-Month |
47.0°F (8.3°C) | 46.0°F (7.8°C) |
1.0°F (0.5°C) | 90th Coolest | Coolest since: 2015 | 1978 |
| 36th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1903, 1922, 1964 | ||||||
|
Sep 2017–May 2018 9-Month |
49.6°F (9.8°C) | 48.5°F (9.2°C) |
1.1°F (0.6°C) | 94th Coolest | Coolest since: 2015 | 1978 |
| 32nd Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1925, 1938, 1941, 2019 | ||||||
|
Aug 2017–May 2018 10-Month |
52.0°F (11.1°C) | 51.3°F (10.7°C) |
0.7°F (0.4°C) | 84th Coolest | Coolest since: 2015 | 1978 |
| 42nd Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1909, 1937, 1953, 2011 | ||||||
|
Jul 2017–May 2018 11-Month |
54.5°F (12.5°C) | 53.7°F (12.1°C) |
0.8°F (0.4°C) | 86th Coolest | Coolest since: 2015 | 1918 |
| 40th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1919, 1941 | ||||||
|
Jun 2017–May 2018 12-Month |
56.2°F (13.4°C) | 55.4°F (13.0°C) |
0.8°F (0.4°C) | 87th Coolest | Coolest since: 2015 | 1904, 1918 |
| 39th Warmest | Warmest since: 2017 | 2012 | ||||
| Ties: 1919, 1995 | ||||||
|
Dec 2016–May 2018 18-Month |
53.7°F (12.1°C) | 51.6°F (10.9°C) |
2.1°F (1.2°C) | 114th Coolest | Coolest since: 2016 | 1979 |
| 11th Warmest | Warmest since: 2017 | 2017 | ||||
| Ties: 1939, 1992 | ||||||
|
Jun 2016–May 2018 24-Month |
57.8°F (14.3°C) | 55.4°F (13.0°C) |
2.4°F (1.3°C) | 121st Coolest | Coolest since: 2016 | 1905, 1978 |
| 4th Warmest | Warmest since: 2017 | 2017 | ||||
| Ties: 2000 | ||||||
|
Jun 2015–May 2018 36-Month |
58.0°F (14.4°C) | 55.4°F (13.0°C) |
2.6°F (1.4°C) | 123rd Coolest | Coolest since: 2017 | 1979 |
| 1st Warmest | Warmest to Date | 2018 | ||||
|
Jun 2014–May 2018 48-Month |
57.1°F (13.9°C) | 55.3°F (12.9°C) |
1.8°F (1.0°C) | 119th Coolest | Coolest since: 2017 | 1980 |
| 4th Warmest | Warmest since: 1935 | 2019 | ||||
|
Jun 2013–May 2018 60-Month |
56.5°F (13.6°C) | 55.4°F (13.0°C) |
1.1°F (0.6°C) | 106th Coolest | Coolest since: 2017 | 1979, 1980, 1981 |
| 16th Warmest | Warmest since: 2017 | 2020 | ||||
| Ties: 1956, 2017 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published March 2021, retrieved on March 9, 2021 from https://www.ncdc.noaa.gov/cag/