NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
February 1921 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| February 1921 1-Month | 34.9°F (1.6°C) | 29.2°F (-1.6°C) | 5.7°F | 111th Coolest | Coolest since: | 1978 |
| 21st Warmest | Warmest since: | 2017 | ||||
| Jan– 2-Month | 33.7°F (0.9°C) | 27.3°F (-2.6°C) | 6.4°F | 121st Coolest | Coolest since: | 1979 |
| 11th Warmest | Warmest to Date | 2017 | ||||
| Dec 1920– 3-Month | 32.9°F (0.5°C) | 28.0°F (-2.2°C) | 4.9°F | 119th Coolest | Coolest since: | 1978 |
| 12th Warmest | Warmest to Date | 1932 | ||||
| Nov 1920– 4-Month | 34.3°F (1.3°C) | 31.2°F (-0.4°C) | 3.1°F | 109th Coolest | Coolest since: | 1977 |
| 22nd Warmest | Warmest since: | 1932 | ||||
| Oct 1920– 5-Month | 39.3°F (4.1°C) | 35.9°F (2.2°C) | 3.4°F | 117th Coolest | Coolest since: | 1977 |
| 14th Warmest | Warmest to Date | 1932 | ||||
| Sep 1920– 6-Month | 44.2°F (6.8°C) | 41.0°F (5.0°C) | 3.2°F | 121st Coolest | Coolest since: | 1977 |
| 10th Warmest | Warmest to Date | 1932 | ||||
| Aug 1920– 7-Month | 48.0°F (8.9°C) | 45.6°F (7.6°C) | 2.4°F | 117th Coolest | Coolest since: | 1977 |
| 14th Warmest | Warmest to Date | 1932 | ||||
| Jul 1920– 8-Month | 51.3°F (10.7°C) | 49.4°F (9.7°C) | 1.9°F | 113th Coolest | Coolest since: | 1977 |
| 18th Warmest | Warmest to Date | 1932 | ||||
| Jun 1920– 9-Month | 53.5°F (11.9°C) | 51.8°F (11.0°C) | 1.7°F | 107th Coolest | Coolest since: | 1977 |
| 24th Warmest | Warmest since: | 1932 | ||||
| May 1920– 10-Month | 54.2°F (12.3°C) | 52.8°F (11.6°C) | 1.4°F | 98th Coolest | Coolest since: | 1918 |
| 33rd Warmest | Warmest since: | 1932 | ||||
| Apr 1920– 11-Month | 53.4°F (11.9°C) | 52.7°F (11.5°C) | 0.7°F | 82nd Coolest | Coolest since: | 1918 |
| 49th Warmest | Warmest since: | 1932 | ||||
| Mar 1920– 12-Month | 52.4°F (11.3°C) | 51.6°F (10.9°C) | 0.8°F | 84th Coolest | Coolest since: | 1918 |
| 47th Warmest | Warmest since: | 2017 | ||||
| Sep 1919– 18-Month | 48.0°F (8.9°C) | 48.1°F (8.9°C) | -0.1°F | 53rd Coolest | Coolest since: | 1905 |
| 77th Warmest | Warmest since: | 2017 | ||||
| Mar 1919– 24-Month | 51.7°F (10.9°C) | 51.6°F (10.9°C) | 0.1°F | 59th Coolest | Coolest since: | 1905 |
| 71st Warmest | Warmest since: | 2017 | ||||
| Mar 1918– 36-Month | 52.1°F (11.2°C) | 51.6°F (10.9°C) | 0.5°F | 80th Coolest | Coolest since: | 1979 |
| 49th Warmest | Warmest to Date | 2013, 2018 | ||||
| Mar 1917– 48-Month | 51.0°F (10.6°C) | 51.6°F (10.9°C) | -0.6°F | 23rd Coolest | Coolest since: | 1905 |
| 105th Warmest | Warmest since: | 2025 | ||||
| Mar 1916– 60-Month | 51.0°F (10.6°C) | 51.6°F (10.9°C) | -0.6°F | 18th Coolest | Coolest since: | 1905 |
| 109th Warmest | Warmest since: | 2025 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 19, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
