NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
February 1931 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| February 1931 1-Month | 36.3°F (2.4°C) | 29.2°F (-1.6°C) | 7.1°F | 119th Coolest | Coolest since: | 1978 |
| 13th Warmest | Warmest since: | 2017 | ||||
| Jan– 2-Month | 33.9°F (1.1°C) | 27.3°F (-2.6°C) | 6.6°F | 123rd Coolest | Coolest since: | 1979 |
| 9th Warmest | Warmest to Date | 2017 | ||||
| Dec 1930– 3-Month | 32.5°F (0.3°C) | 28°F (-2.2°C) | 4.5°F | 116th Coolest | Coolest since: | 1978 |
| 15th Warmest | Warmest since: | 1932 | ||||
| Nov 1930– 4-Month | 34.8°F (1.6°C) | 31.2°F (-0.4°C) | 3.6°F | 114th Coolest | Coolest since: | 1977 |
| 17th Warmest | Warmest since: | 1932 | ||||
| Oct 1930– 5-Month | 38.3°F (3.5°C) | 35.9°F (2.2°C) | 2.4°F | 109th Coolest | Coolest since: | 1977 |
| 22nd Warmest | Warmest since: | 1932 | ||||
| Sep 1930– 6-Month | 43.3°F (6.3°C) | 41°F (5.0°C) | 2.3°F | 109th Coolest | Coolest since: | 1977 |
| 22nd Warmest | Warmest since: | 1932 | ||||
| Aug 1930– 7-Month | 47.9°F (8.8°C) | 45.6°F (7.6°C) | 2.3°F | 116th Coolest | Coolest since: | 1977 |
| 15th Warmest | Warmest since: | 1932 | ||||
| Jul 1930– 8-Month | 51.7°F (10.9°C) | 49.4°F (9.7°C) | 2.3°F | 119th Coolest | Coolest since: | 1977 |
| 12th Warmest | Warmest to Date | 1932 | ||||
| Jun 1930– 9-Month | 53.8°F (12.1°C) | 51.8°F (11.0°C) | 2°F | 116th Coolest | Coolest since: | 1977 |
| 15th Warmest | Warmest to Date | 1932 | ||||
| May 1930– 10-Month | 54.8°F (12.7°C) | 52.8°F (11.6°C) | 2°F | 114th Coolest | Coolest since: | 1918 |
| 17th Warmest | Warmest to Date | 1932 | ||||
| Apr 1930– 11-Month | 54.7°F (12.6°C) | 52.7°F (11.5°C) | 2°F | 115th Coolest | Coolest since: | 1918 |
| 16th Warmest | Warmest to Date | 1932 | ||||
| Mar 1930– 12-Month | 53.4°F (11.9°C) | 51.6°F (10.9°C) | 1.8°F | 111th Coolest | Coolest since: | 1918 |
| 20th Warmest | Warmest since: | 2017 | ||||
| Sep 1929– 18-Month | 49°F (9.4°C) | 48.1°F (8.9°C) | 0.9°F | 95th Coolest | Coolest since: | 1905 |
| 35th Warmest | Warmest since: | 2017 | ||||
| Mar 1929– 24-Month | 52.3°F (11.3°C) | 51.6°F (10.9°C) | 0.7°F | 88th Coolest | Coolest since: | 1905 |
| 42nd Warmest | Warmest since: | 2017 | ||||
| Mar 1928– 36-Month | 51.5°F (10.8°C) | 51.6°F (10.9°C) | -0.1°F | 50th Coolest | Coolest since: | 1979 |
| 79th Warmest | Warmest since: | 2013, 2018 | ||||
| Mar 1927– 48-Month | 51.6°F (10.9°C) | 51.6°F (10.9°C) | 0°F | 50th Coolest | Coolest since: | 1905 |
| 78th Warmest | Warmest since: | 2025 | ||||
| Mar 1926– 60-Month | 51.4°F (10.8°C) | 51.6°F (10.9°C) | -0.2°F | 41st Coolest | Coolest since: | 1905 |
| 86th Warmest | Warmest since: | 2025 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published September 2025, retrieved on September 18, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
