NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
December 1958 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| December 1958 1-Month | 24.1°F (-4.4°C) | 29.4°F (-1.4°C) | -5.3°F | 17th Coolest | Coolest since: | 1983 |
| 114th Warmest | Warmest since: | 2015 | ||||
| Nov– 2-Month | 33.9°F (1.1°C) | 35.1°F (1.7°C) | -1.2°F | 34th Coolest | Coolest since: | 1950 |
| 97th Warmest | Warmest since: | 2015 | ||||
| Oct– 3-Month | 41.1°F (5.1°C) | 41.6°F (5.3°C) | -0.5°F | 46th Coolest | Coolest since: | 1976 |
| 85th Warmest | Warmest since: | 1931 | ||||
| Sep– 4-Month | 47.3°F (8.5°C) | 47.8°F (8.8°C) | -0.5°F | 46th Coolest | Coolest since: | 1976 |
| 85th Warmest | Warmest since: | 1931 | ||||
| Aug– 5-Month | 52.6°F (11.4°C) | 52.9°F (11.6°C) | -0.3°F | 49th Coolest | Coolest since: | 1976 |
| 82nd Warmest | Warmest since: | 1931 | ||||
| Jul– 6-Month | 56.0°F (13.3°C) | 56.7°F (13.7°C) | -0.7°F | 36th Coolest | Coolest since: | 1976 |
| 95th Warmest | Warmest since: | 1931 | ||||
| Jun– 7-Month | 57.6°F (14.2°C) | 58.8°F (14.9°C) | -1.2°F | 22nd Coolest | Coolest since: | 1917 |
| 109th Warmest | Warmest since: | 1931 | ||||
| Ties: 1898, 1909, 1937 | ||||||
| May– 8-Month | 58.2°F (14.6°C) | 59.2°F (15.1°C) | -1.0°F | 27th Coolest | Coolest since: | 1917 |
| 104th Warmest | Warmest since: | 1931 | ||||
| Apr– 9-Month | 57.5°F (14.2°C) | 58.3°F (14.6°C) | -0.8°F | 26th Coolest | Coolest since: | 1917 |
| 105th Warmest | Warmest since: | 1931 | ||||
| Mar– 10-Month | 55.4°F (13.0°C) | 56.5°F (13.6°C) | -1.1°F | 18th Coolest | Coolest since: | 1917 |
| 113th Warmest | Warmest since: | 2012 | ||||
| Feb– 11-Month | 52.2°F (11.2°C) | 54.0°F (12.2°C) | -1.8°F | 7th Coolest | Coolest since: | 1917 |
| 124th Warmest | Warmest since: | 2024 | ||||
| Jan– 12-Month | 50.1°F (10.1°C) | 51.6°F (10.9°C) | -1.5°F | 12th Coolest | Coolest since: | 1917 |
| 119th Warmest | Warmest since: | 2012 | ||||
| Jul 1957– 18-Month | 52.3°F (11.3°C) | 53.3°F (11.8°C) | -1.0°F | 17th Coolest | Coolest since: | 1904 |
| 113th Warmest | Warmest since: | 2012 | ||||
| Jan 1957– 24-Month | 50.9°F (10.5°C) | 51.6°F (10.9°C) | -0.7°F | 22nd Coolest | Coolest since: | 1904, 1979 |
| 108th Warmest | Warmest since: | 2024 | ||||
| Jan 1956– 36-Month | 51.5°F (10.8°C) | 51.6°F (10.9°C) | -0.1°F | 55th Coolest | Coolest since: | 1905 |
| 74th Warmest | Warmest since: | 2024 | ||||
| Jan 1955– 48-Month | 51.7°F (10.9°C) | 51.6°F (10.9°C) | 0.1°F | 58th Coolest | Coolest since: | 1905 |
| 70th Warmest | Warmest since: | 2024 | ||||
| Jan 1954– 60-Month | 52.1°F (11.2°C) | 51.6°F (10.9°C) | 0.5°F | 80th Coolest | Coolest since: | 1905 |
| 47th Warmest | Warmest since: | 2024 | ||||
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
