NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
December 1915 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| December 1915 1-Month | 28.4°F (-2.0°C) | 29.4°F (-1.4°C) | -1.0°F | 49th Coolest | Coolest since: | 1983 |
| 82nd Warmest | Warmest since: | 2015 | ||||
| Nov– 2-Month | 36.2°F (2.3°C) | 35.1°F (1.7°C) | 1.1°F | 77th Coolest | Coolest since: | 1950 |
| 54th Warmest | Warmest since: | 2015 | ||||
| Oct– 3-Month | 42.7°F (5.9°C) | 41.6°F (5.3°C) | 1.1°F | 82nd Coolest | Coolest since: | 1976 |
| 49th Warmest | Warmest since: | 1931 | ||||
| Sep– 4-Month | 48.9°F (9.4°C) | 47.8°F (8.8°C) | 1.1°F | 85th Coolest | Coolest since: | 1976 |
| 46th Warmest | Warmest since: | 1931 | ||||
| Aug– 5-Month | 52.5°F (11.4°C) | 52.9°F (11.6°C) | -0.4°F | 46th Coolest | Coolest since: | 1976 |
| 85th Warmest | Warmest since: | 1931 | ||||
| Jul– 6-Month | 55.8°F (13.2°C) | 56.7°F (13.7°C) | -0.9°F | 32nd Coolest | Coolest since: | 1976 |
| 99th Warmest | Warmest since: | 1931 | ||||
| Ties: 1896 | ||||||
| Jun– 7-Month | 57.5°F (14.2°C) | 58.8°F (14.9°C) | -1.3°F | 21st Coolest | Coolest since: | 1917 |
| 110th Warmest | Warmest since: | 1931 | ||||
| May– 8-Month | 57.7°F (14.3°C) | 59.2°F (15.1°C) | -1.5°F | 14th Coolest | Coolest since: | 1917 |
| 117th Warmest | Warmest since: | 1931 | ||||
| Apr– 9-Month | 57.7°F (14.3°C) | 58.3°F (14.6°C) | -0.6°F | 32nd Coolest | Coolest since: | 1917 |
| 99th 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 | 53.5°F (11.9°C) | 54.0°F (12.2°C) | -0.5°F | 41st Coolest | Coolest since: | 1917 |
| 90th Warmest | Warmest since: | 2024 | ||||
| Jan– 12-Month | 50.9°F (10.5°C) | 51.6°F (10.9°C) | -0.7°F | 36th Coolest | Coolest since: | 1917 |
| 95th Warmest | Warmest since: | 2012 | ||||
| Jul 1914– 18-Month | 52.9°F (11.6°C) | 53.3°F (11.8°C) | -0.4°F | 39th Coolest | Coolest since: | 1904 |
| 91st Warmest | Warmest since: | 2012 | ||||
| Jan 1914– 24-Month | 51.4°F (10.8°C) | 51.6°F (10.9°C) | -0.2°F | 52nd Coolest | Coolest since: | 1904, 1979 |
| 78th Warmest | Warmest since: | 2024 | ||||
| Jan 1913– 36-Month | 51.9°F (11.1°C) | 51.6°F (10.9°C) | 0.3°F | 74th Coolest | Coolest since: | 1905 |
| 55th Warmest | Warmest to Date | 2024 | ||||
| Jan 1912– 48-Month | 51.2°F (10.7°C) | 51.6°F (10.9°C) | -0.4°F | 32nd Coolest | Coolest since: | 1905 |
| 96th Warmest | Warmest since: | 2024 | ||||
| Jan 1911– 60-Month | 51.5°F (10.8°C) | 51.6°F (10.9°C) | -0.1°F | 50th Coolest | Coolest since: | 1905 |
| 77th Warmest | Warmest since: | 2024 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
