NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
March 2019 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| March 2019 1-Month | 37.3°F (2.9°C) | 39.8°F (4.3°C) | -2.5°F | 39th Coolest | Coolest since: | 1960 |
| 92nd Warmest | Warmest since: | 2012 | ||||
| Ties: 1914 | ||||||
| Feb– 2-Month | 33.3°F (0.7°C) | 34.5°F (1.4°C) | -1.2°F | 45th Coolest | Coolest since: | 1978 |
| 86th Warmest | Warmest since: | 2012 | ||||
| Jan– 3-Month | 30.7°F (-0.7°C) | 31.4°F (-0.3°C) | -0.7°F | 54th Coolest | Coolest since: | 1912 |
| 77th Warmest | Warmest since: | 2012 | ||||
| Ties: 1968 | ||||||
| Dec 2018– 4-Month | 31.6°F (-0.2°C) | 31.0°F (-0.6°C) | 0.6°F | 71st Coolest | Coolest since: | 1978 |
| 59th Warmest | Warmest since: | 2012 | ||||
| Ties: 1928, 1934, 1945 | ||||||
| Nov 2018– 5-Month | 32.4°F (0.2°C) | 32.9°F (0.5°C) | -0.5°F | 44th Coolest | Coolest since: | 1912 |
| 86th Warmest | Warmest since: | 2012 | ||||
| Ties: 1896, 1943, 2011 | ||||||
| Oct 2018– 6-Month | 36.0°F (2.2°C) | 36.6°F (2.6°C) | -0.6°F | 42nd Coolest | Coolest since: | 1912, 1978 |
| 88th Warmest | Warmest since: | 2012 | ||||
| Sep 2018– 7-Month | 40.9°F (4.9°C) | 40.8°F (4.9°C) | 0.1°F | 66th Coolest | Coolest since: | 1977, 1978 |
| 64th Warmest | Warmest since: | 2017 | ||||
| Ties: 1901, 1911, 1913, 1925, 1948, 1985 | ||||||
| Aug 2018– 8-Month | 45.2°F (7.3°C) | 44.9°F (7.2°C) | 0.3°F | 68th Coolest | Coolest since: | 1977 |
| 62nd Warmest | Warmest since: | 2017 | ||||
| Ties: 1927 | ||||||
| Jul 2018– 9-Month | 48.5°F (9.2°C) | 48.3°F (9.1°C) | 0.2°F | 62nd Coolest | Coolest since: | 1977 |
| 68th Warmest | Warmest since: | 2012 | ||||
| Ties: 1933, 1973, 1988 | ||||||
| Jun 2018– 10-Month | 51.1°F (10.6°C) | 50.6°F (10.3°C) | 0.5°F | 75th Coolest | Coolest since: | 1904 |
| 55th Warmest | Warmest since: | 2012 | ||||
| Ties: 1988, 2003 | ||||||
| May 2018– 11-Month | 52.9°F (11.6°C) | 51.7°F (10.9°C) | 1.2°F | 101st Coolest | Coolest since: | 1918 |
| 29th Warmest | Warmest since: | 2012 | ||||
| Ties: 1914, 1945, 1950, 1995 | ||||||
| Apr 2018– 12-Month | 52.2°F (11.2°C) | 51.6°F (10.9°C) | 0.6°F | 75th Coolest | Coolest since: | 1918 |
| 55th Warmest | Warmest since: | 2012 | ||||
| Ties: 1897, 1901, 1998 | ||||||
| Oct 2017– 18-Month | 47.3°F (8.5°C) | 46.6°F (8.1°C) | 0.7°F | 87th Coolest | Coolest since: | 1905 |
| 42nd Warmest | Warmest since: | 2017 | ||||
| Ties: 1989 | ||||||
| Apr 2017– 24-Month | 52.4°F (11.3°C) | 51.6°F (10.9°C) | 0.8°F | 91st Coolest | Coolest since: | 1905 |
| 38th Warmest | Warmest since: | 2017 | ||||
| Ties: 1915, 1934, 1990, 1993 | ||||||
| Apr 2016– 36-Month | 53.4°F (11.9°C) | 51.6°F (10.9°C) | 1.8°F | 122nd Coolest | Coolest since: | 1979 |
| 6th Warmest | Warmest since: | 2018 | ||||
| Ties: 1933, 2007, 2008 | ||||||
| Apr 2015– 48-Month | 53.8°F (12.1°C) | 51.6°F (10.9°C) | 2.2°F | 126th Coolest | Coolest since: | 1980 |
| 1st Warmest | Warmest to Date | 2019 | ||||
| Apr 2014– 60-Month | 53.1°F (11.7°C) | 51.6°F (10.9°C) | 1.5°F | 117th Coolest | Coolest since: | 1906 |
| 9th Warmest | Warmest since: | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 23, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
