NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
December 1931 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| December 1931 1-Month | 38.3°F (3.5°C) | 29.4°F (-1.4°C) | 8.9°F | 126th Coolest | Coolest since: | 1983 |
| 5th Warmest | Warmest since: | 2015 | ||||
| Nov– 2-Month | 43.7°F (6.5°C) | 35.1°F (1.7°C) | 8.6°F | 129th Coolest | Coolest since: | 1950 |
| 2nd Warmest | Warmest to Date | 2015 | ||||
| Oct– 3-Month | 48.6°F (9.2°C) | 41.6°F (5.3°C) | 7.0°F | 130th Coolest | Coolest since: | 1976 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Sep– 4-Month | 54.4°F (12.4°C) | 47.8°F (8.8°C) | 6.6°F | 130th Coolest | Coolest since: | 1976 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Aug– 5-Month | 58.2°F (14.6°C) | 52.9°F (11.6°C) | 5.3°F | 130th Coolest | Coolest since: | 1976 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Jul– 6-Month | 61.6°F (16.4°C) | 56.7°F (13.7°C) | 4.9°F | 130th Coolest | Coolest since: | 1976 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Jun– 7-Month | 63.5°F (17.5°C) | 58.8°F (14.9°C) | 4.7°F | 130th Coolest | Coolest since: | 1917 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| May– 8-Month | 62.9°F (17.2°C) | 59.2°F (15.1°C) | 3.7°F | 130th Coolest | Coolest since: | 1917 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Apr– 9-Month | 61.7°F (16.5°C) | 58.3°F (14.6°C) | 3.4°F | 130th Coolest | Coolest since: | 1917 |
| 1st Warmest | Warmest to Date | 1931 | ||||
| Mar– 10-Month | 59.1°F (15.1°C) | 56.5°F (13.6°C) | 2.6°F | 124th Coolest | Coolest since: | 1917 |
| 7th Warmest | Warmest since: | 2012 | ||||
| Feb– 11-Month | 57.0°F (13.9°C) | 54.0°F (12.2°C) | 3.0°F | 125th Coolest | Coolest since: | 1917 |
| 6th Warmest | Warmest since: | 2024 | ||||
| Jan– 12-Month | 54.9°F (12.7°C) | 51.6°F (10.9°C) | 3.3°F | 126th Coolest | Coolest since: | 1917 |
| 5th Warmest | Warmest since: | 2012 | ||||
| Jul 1930– 18-Month | 55.8°F (13.2°C) | 53.3°F (11.8°C) | 2.5°F | 125th Coolest | Coolest since: | 1904 |
| 5th Warmest | Warmest to Date | 2012 | ||||
| Jan 1930– 24-Month | 53.7°F (12.1°C) | 51.6°F (10.9°C) | 2.1°F | 121st Coolest | Coolest since: | 1904, 1979 |
| 9th Warmest | Warmest since: | 2024 | ||||
| Jan 1929– 36-Month | 52.4°F (11.3°C) | 51.6°F (10.9°C) | 0.8°F | 91st Coolest | Coolest since: | 1905 |
| 38th Warmest | Warmest since: | 2024 | ||||
| Jan 1928– 48-Month | 52.2°F (11.2°C) | 51.6°F (10.9°C) | 0.6°F | 82nd Coolest | Coolest since: | 1905 |
| 46th Warmest | Warmest since: | 2024 | ||||
| Jan 1927– 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 March 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
