NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
December 1965 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| December 1965 1-Month | 37.3°F (2.9°C) | 29.4°F (-1.4°C) | 7.9°F | 124th Coolest | Coolest since: | 1983 |
| 7th Warmest | Warmest since: | 2015 | ||||
| Nov– 2-Month | 40.6°F (4.8°C) | 35.1°F (1.7°C) | 5.5°F | 123rd Coolest | Coolest since: | 1950 |
| 8th Warmest | Warmest since: | 2015 | ||||
| Oct– 3-Month | 45.0°F (7.2°C) | 41.6°F (5.3°C) | 3.4°F | 116th Coolest | Coolest since: | 1976 |
| 15th Warmest | Warmest since: | 1931 | ||||
| Sep– 4-Month | 50.3°F (10.2°C) | 47.8°F (8.8°C) | 2.5°F | 116th Coolest | Coolest since: | 1976 |
| 15th Warmest | Warmest since: | 1931 | ||||
| Aug– 5-Month | 54.5°F (12.5°C) | 52.9°F (11.6°C) | 1.6°F | 107th Coolest | Coolest since: | 1976 |
| 24th Warmest | Warmest since: | 1931 | ||||
| Jul– 6-Month | 57.7°F (14.3°C) | 56.7°F (13.7°C) | 1.0°F | 91st Coolest | Coolest since: | 1976 |
| 40th Warmest | Warmest since: | 1931 | ||||
| Jun– 7-Month | 59.6°F (15.3°C) | 58.8°F (14.9°C) | 0.8°F | 84th Coolest | Coolest since: | 1917 |
| 47th Warmest | Warmest since: | 1931 | ||||
| May– 8-Month | 60.6°F (15.9°C) | 59.2°F (15.1°C) | 1.4°F | 103rd Coolest | Coolest since: | 1917 |
| 28th Warmest | Warmest since: | 1931 | ||||
| Apr– 9-Month | 59.7°F (15.4°C) | 58.3°F (14.6°C) | 1.4°F | 103rd Coolest | Coolest since: | 1917 |
| 28th Warmest | Warmest since: | 1931 | ||||
| Mar– 10-Month | 56.8°F (13.8°C) | 56.5°F (13.6°C) | 0.3°F | 72nd Coolest | Coolest since: | 1917 |
| 59th Warmest | Warmest since: | 2012 | ||||
| Ties: 1896 | ||||||
| Feb– 11-Month | 54.3°F (12.4°C) | 54.0°F (12.2°C) | 0.3°F | 72nd Coolest | Coolest since: | 1917 |
| 59th Warmest | Warmest since: | 2024 | ||||
| Jan– 12-Month | 51.9°F (11.1°C) | 51.6°F (10.9°C) | 0.3°F | 71st Coolest | Coolest since: | 1917 |
| 60th Warmest | Warmest since: | 2012 | ||||
| Jul 1964– 18-Month | 53.4°F (11.9°C) | 53.3°F (11.8°C) | 0.1°F | 59th Coolest | Coolest since: | 1904 |
| 71st Warmest | Warmest since: | 2012 | ||||
| Ties: 1901, 1908, 1930, 1944 | ||||||
| Jan 1964– 24-Month | 52.2°F (11.2°C) | 51.6°F (10.9°C) | 0.6°F | 86th Coolest | Coolest since: | 1904, 1979 |
| 44th Warmest | Warmest since: | 2024 | ||||
| Jan 1963– 36-Month | 51.7°F (10.9°C) | 51.6°F (10.9°C) | 0.1°F | 68th Coolest | Coolest since: | 1905 |
| 61st Warmest | Warmest since: | 2024 | ||||
| Jan 1962– 48-Month | 51.5°F (10.8°C) | 51.6°F (10.9°C) | -0.1°F | 52nd Coolest | Coolest since: | 1905 |
| 76th Warmest | Warmest since: | 2024 | ||||
| Ties: 1930, 1953 | ||||||
| Jan 1961– 60-Month | 51.4°F (10.8°C) | 51.6°F (10.9°C) | -0.2°F | 45th Coolest | Coolest since: | 1905 |
| 82nd 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
