NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
April 2010 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| April 2010 1-Month | 58.7°F (14.8°C) | 51.5°F (10.8°C) | 7.2°F | 130th Coolest | Coolest since: | 1907 |
| 1st Warmest | Warmest to Date | 2010 | ||||
| Mar– 2-Month | 51.3°F (10.7°C) | 45.7°F (7.6°C) | 5.6°F | 125th Coolest | Coolest since: | 1926 |
| 6th Warmest | Warmest since: | 2012 | ||||
| Ties: 1910 | ||||||
| Feb– 3-Month | 42.7°F (5.9°C) | 40.2°F (4.6°C) | 2.5°F | 102nd Coolest | Coolest since: | 1978 |
| 29th Warmest | Warmest since: | 2012 | ||||
| Jan– 4-Month | 37.4°F (3.0°C) | 36.5°F (2.5°C) | 0.9°F | 80th Coolest | Coolest since: | 1912 |
| 51st Warmest | Warmest since: | 2012 | ||||
| Dec 2009– 5-Month | 35.8°F (2.1°C) | 35.1°F (1.7°C) | 0.7°F | 74th Coolest | Coolest since: | 1978 |
| 56th Warmest | Warmest since: | 2012 | ||||
| Nov 2009– 6-Month | 37.7°F (3.2°C) | 36.0°F (2.2°C) | 1.7°F | 97th Coolest | Coolest since: | 1904 |
| 33rd Warmest | Warmest since: | 2012 | ||||
| Ties: 1974, 1990 | ||||||
| Oct 2009– 7-Month | 39.4°F (4.1°C) | 38.7°F (3.7°C) | 0.7°F | 79th Coolest | Coolest since: | 1904 |
| 51st Warmest | Warmest since: | 2012 | ||||
| Ties: 1898, 2008 | ||||||
| Sep 2009– 8-Month | 42.8°F (6.0°C) | 42.1°F (5.6°C) | 0.7°F | 80th Coolest | Coolest since: | 1904 |
| 50th Warmest | Warmest since: | 2017 | ||||
| Ties: 1914, 1934, 1948, 1985 | ||||||
| Aug 2009– 9-Month | 45.9°F (7.7°C) | 45.6°F (7.6°C) | 0.3°F | 67th Coolest | Coolest since: | 1904 |
| 63rd Warmest | Warmest since: | 2017 | ||||
| Ties: 1915, 1928, 1966 | ||||||
| Jul 2009– 10-Month | 48.3°F (9.1°C) | 48.6°F (9.2°C) | -0.3°F | 42nd Coolest | Coolest since: | 1904 |
| 88th Warmest | Warmest since: | 2012 | ||||
| Ties: 1911, 1917, 1929, 1971, 1984 | ||||||
| Jun 2009– 11-Month | 50.5°F (10.3°C) | 50.7°F (10.4°C) | -0.2°F | 49th Coolest | Coolest since: | 1904 |
| 81st Warmest | Warmest since: | 2017 | ||||
| Ties: 1910, 1944, 1947, 1984, 1986 | ||||||
| May 2009– 12-Month | 51.6°F (10.9°C) | 51.6°F (10.9°C) | 0.0°F | 55th Coolest | Coolest since: | 1918 |
| 75th Warmest | Warmest since: | 2012, 2017 | ||||
| Nov 2008– 18-Month | 46.4°F (8.0°C) | 46.4°F (8.0°C) | 0.0°F | 56th Coolest | Coolest since: | 1905 |
| 73rd Warmest | Warmest since: | 2017 | ||||
| Ties: 1907 | ||||||
| May 2008– 24-Month | 51.4°F (10.8°C) | 51.6°F (10.9°C) | -0.2°F | 43rd Coolest | Coolest since: | 1905 |
| 86th Warmest | Warmest since: | 2017 | ||||
| Ties: 1909, 1916, 1947 | ||||||
| May 2007– 36-Month | 52.0°F (11.1°C) | 51.6°F (10.9°C) | 0.4°F | 76th Coolest | Coolest since: | 1979 |
| 52nd Warmest | Warmest since: | 2018, 2024 | ||||
| Ties: 1937, 1946 | ||||||
| May 2006– 48-Month | 52.1°F (11.2°C) | 51.6°F (10.9°C) | 0.5°F | 82nd Coolest | Coolest since: | 1980 |
| 45th Warmest | Warmest since: | 2019 | ||||
| Ties: 1938, 1943, 1944, 1958, 1974, 1976, 1999 | ||||||
| May 2005– 60-Month | 52.6°F (11.4°C) | 51.6°F (10.9°C) | 1.0°F | 104th Coolest | Coolest since: | 1906 |
| 22nd Warmest | Warmest since: | 2020, 2024 | ||||
| Ties: 1923, 1956, 1958, 1991, 2001, 2005 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on April 2, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
