NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
February 2010 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| February 2010 1-Month | 25.7°F (-3.5°C) | 29.2°F (-1.6°C) | -3.5°F | 33rd Coolest | Coolest since: | 1978 |
| 99th Warmest | Warmest since: | 2017 | ||||
| Jan– 2-Month | 23.6°F (-4.7°C) | 27.3°F (-2.6°C) | -3.7°F | 21st Coolest | Coolest since: | 1979 |
| 111th Warmest | Warmest since: | 2017 | ||||
| Ties: 1958 | ||||||
| Dec 2009– 3-Month | 25.4°F (-3.7°C) | 28.0°F (-2.2°C) | -2.6°F | 22nd Coolest | Coolest since: | 1978 |
| 109th Warmest | Warmest since: | 1932 | ||||
| Ties: 1940, 1945 | ||||||
| Nov 2009– 4-Month | 30.9°F (-0.6°C) | 31.2°F (-0.4°C) | -0.3°F | 47th Coolest | Coolest since: | 1977 |
| 84th Warmest | Warmest since: | 1932 | ||||
| Ties: 1973 | ||||||
| Oct 2009– 5-Month | 34.7°F (1.5°C) | 35.9°F (2.2°C) | -1.2°F | 29th Coolest | Coolest since: | 1977 |
| 102nd Warmest | Warmest since: | 1932 | ||||
| Ties: 1945, 1958 | ||||||
| Sep 2009– 6-Month | 39.9°F (4.4°C) | 41.0°F (5.0°C) | -1.1°F | 27th Coolest | Coolest since: | 1977 |
| 104th Warmest | Warmest since: | 1932 | ||||
| Ties: 1997 | ||||||
| Aug 2009– 7-Month | 44.3°F (6.8°C) | 45.6°F (7.6°C) | -1.3°F | 22nd Coolest | Coolest since: | 1977 |
| 109th Warmest | Warmest since: | 1932 | ||||
| Jul 2009– 8-Month | 47.6°F (8.7°C) | 49.4°F (9.7°C) | -1.8°F | 17th Coolest | Coolest since: | 1977 |
| 114th Warmest | Warmest since: | 1932 | ||||
| Jun 2009– 9-Month | 50.4°F (10.2°C) | 51.8°F (11.0°C) | -1.4°F | 20th Coolest | Coolest since: | 1977 |
| 111th Warmest | Warmest since: | 1932 | ||||
| Ties: 1994 | ||||||
| May 2009– 10-Month | 51.6°F (10.9°C) | 52.8°F (11.6°C) | -1.2°F | 23rd Coolest | Coolest since: | 1918 |
| 108th Warmest | Warmest since: | 1932 | ||||
| Ties: 1912, 1916, 1962, 1993 | ||||||
| Apr 2009– 11-Month | 51.6°F (10.9°C) | 52.7°F (11.5°C) | -1.1°F | 26th Coolest | Coolest since: | 1918 |
| 105th Warmest | Warmest since: | 1932 | ||||
| Ties: 1959, 1997 | ||||||
| Mar 2009– 12-Month | 50.9°F (10.5°C) | 51.6°F (10.9°C) | -0.7°F | 32nd Coolest | Coolest since: | 1918 |
| 99th Warmest | Warmest since: | 2017 | ||||
| Ties: 2009 | ||||||
| Sep 2008– 18-Month | 47.4°F (8.6°C) | 48.1°F (8.9°C) | -0.7°F | 32nd Coolest | Coolest since: | 1905 |
| 98th Warmest | Warmest since: | 2017 | ||||
| Ties: 1902, 1908, 1916, 1982 | ||||||
| Mar 2008– 24-Month | 50.9°F (10.5°C) | 51.6°F (10.9°C) | -0.7°F | 28th Coolest | Coolest since: | 1905 |
| 102nd Warmest | Warmest since: | 2017 | ||||
| Ties: 1899, 1911, 1929 | ||||||
| Mar 2007– 36-Month | 51.9°F (11.1°C) | 51.6°F (10.9°C) | 0.3°F | 72nd Coolest | Coolest since: | 1979 |
| 57th Warmest | Warmest since: | 2013, 2018 | ||||
| Ties: 1916, 1936, 1987, 1994 | ||||||
| Mar 2006– 48-Month | 52.1°F (11.2°C) | 51.6°F (10.9°C) | 0.5°F | 80th Coolest | Coolest since: | 1905 |
| 48th Warmest | Warmest since: | 2025 | ||||
| Ties: 1925, 1941, 1944, 1995, 1999 | ||||||
| Mar 2005– 60-Month | 52.4°F (11.3°C) | 51.6°F (10.9°C) | 0.8°F | 94th Coolest | Coolest since: | 1905 |
| 33rd Warmest | Warmest since: | 2025 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 19, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
