NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
January 1980 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| January 1980 1-Month | 26.4°F (-3.1°C) | 25.3°F (-3.7°C) | 1.1°F | 69th Coolest | Coolest since: | 1977 |
| 63rd Warmest | Warmest since: | 2006 | ||||
| Ties: 1917 | ||||||
| Dec 1979– 2-Month | 30.1°F (-1.1°C) | 27.5°F (-2.5°C) | 2.6°F | 92nd Coolest | Coolest since: | 1918 |
| 39th Warmest | Warmest since: | 1932 | ||||
| Nov 1979– 3-Month | 33.5°F (0.8°C) | 31.9°F (-0.1°C) | 1.6°F | 80th Coolest | Coolest since: | 1977 |
| 51st Warmest | Warmest since: | 1932 | ||||
| Oct 1979– 4-Month | 38.7°F (3.7°C) | 37.6°F (3.1°C) | 1.1°F | 79th Coolest | Coolest since: | 1977 |
| 52nd Warmest | Warmest since: | 1932 | ||||
| Ties: 1903, 1955, 1967 | ||||||
| Sep 1979– 5-Month | 44.1°F (6.7°C) | 43.3°F (6.3°C) | 0.8°F | 74th Coolest | Coolest since: | 1977 |
| 57th Warmest | Warmest since: | 1932 | ||||
| Aug 1979– 6-Month | 48.9°F (9.4°C) | 48.4°F (9.1°C) | 0.5°F | 75th Coolest | Coolest since: | 1977 |
| 56th Warmest | Warmest since: | 1932 | ||||
| Jul 1979– 7-Month | 52.4°F (11.3°C) | 52.2°F (11.2°C) | 0.2°F | 59th Coolest | Coolest since: | 1977 |
| 72nd Warmest | Warmest since: | 1932 | ||||
| Ties: 1958, 1966 | ||||||
| Jun 1979– 8-Month | 54.8°F (12.7°C) | 54.6°F (12.6°C) | 0.2°F | 57th Coolest | Coolest since: | 1918, 1977 |
| 74th Warmest | Warmest since: | 1932 | ||||
| Ties: 1924, 1965, 1966, 1967 | ||||||
| May 1979– 9-Month | 55.6°F (13.1°C) | 55.5°F (13.1°C) | 0.1°F | 60th Coolest | Coolest since: | 1918 |
| 71st Warmest | Warmest since: | 1932 | ||||
| Ties: 1940, 1958, 1971 | ||||||
| Apr 1979– 10-Month | 54.9°F (12.7°C) | 55.1°F (12.8°C) | -0.2°F | 51st Coolest | Coolest since: | 1918 |
| 80th Warmest | Warmest since: | 1932 | ||||
| Mar 1979– 11-Month | 53.5°F (11.9°C) | 53.7°F (12.1°C) | -0.2°F | 50th Coolest | Coolest since: | 1918 |
| 81st Warmest | Warmest since: | 2013 | ||||
| Feb 1979– 12-Month | 50.5°F (10.3°C) | 51.6°F (10.9°C) | -1.1°F | 21st Coolest | Coolest since: | 1918 |
| 110th Warmest | Warmest since: | 2013 | ||||
| Aug 1978– 18-Month | 49.3°F (9.6°C) | 50.5°F (10.3°C) | -1.2°F | 16th Coolest | Coolest since: | 1905, 1918 |
| 114th Warmest | Warmest since: | 2017 | ||||
| Feb 1978– 24-Month | 49.9°F (9.9°C) | 51.6°F (10.9°C) | -1.7°F | 4th Coolest | Coolest since: | 1918 |
| 126th Warmest | Warmest since: | 2013 | ||||
| Feb 1977– 36-Month | 50.6°F (10.3°C) | 51.6°F (10.9°C) | -1.0°F | 12th Coolest | Coolest since: | 1905 |
| 117th Warmest | Warmest since: | 2013 | ||||
| Ties: 1927 | ||||||
| Feb 1976– 48-Month | 50.3°F (10.2°C) | 51.6°F (10.9°C) | -1.3°F | 4th Coolest | Coolest since: | 1905 |
| 124th Warmest | Warmest since: | 2025 | ||||
| Ties: 1907 | ||||||
| Feb 1975– 60-Month | 50.5°F (10.3°C) | 51.6°F (10.9°C) | -1.1°F | 5th Coolest | Coolest since: | 1906 |
| 122nd 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 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
