NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
March 1940 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| March 1940 1-Month | 36.5°F (2.5°C) | 39.8°F (4.3°C) | -3.3°F | 34th Coolest | Coolest since: | 1960 |
| 97th Warmest | Warmest since: | 2012 | ||||
| Feb– 2-Month | 32.8°F (0.4°C) | 34.5°F (1.4°C) | -1.7°F | 41st Coolest | Coolest since: | 1978 |
| 90th Warmest | Warmest since: | 2012 | ||||
| Jan– 3-Month | 26.2°F (-3.2°C) | 31.4°F (-0.3°C) | -5.2°F | 7th Coolest | Coolest since: | 1912 |
| 124th Warmest | Warmest since: | 2012 | ||||
| Dec 1939– 4-Month | 28.2°F (-2.1°C) | 31.0°F (-0.6°C) | -2.8°F | 19th Coolest | Coolest since: | 1978 |
| 111th Warmest | Warmest since: | 2012 | ||||
| Nov 1939– 5-Month | 30.5°F (-0.8°C) | 32.9°F (0.5°C) | -2.4°F | 20th Coolest | Coolest since: | 1912 |
| 110th Warmest | Warmest since: | 2012 | ||||
| Oct 1939– 6-Month | 34.9°F (1.6°C) | 36.6°F (2.6°C) | -1.7°F | 24th Coolest | Coolest since: | 1912, 1978 |
| 106th Warmest | Warmest since: | 2012 | ||||
| Sep 1939– 7-Month | 40.0°F (4.4°C) | 40.8°F (4.9°C) | -0.8°F | 37th Coolest | Coolest since: | 1977, 1978 |
| 93rd Warmest | Warmest since: | 2017 | ||||
| Aug 1939– 8-Month | 44.1°F (6.7°C) | 44.9°F (7.2°C) | -0.8°F | 31st Coolest | Coolest since: | 1977 |
| 99th Warmest | Warmest since: | 2017 | ||||
| Jul 1939– 9-Month | 47.6°F (8.7°C) | 48.3°F (9.1°C) | -0.7°F | 38th Coolest | Coolest since: | 1977 |
| 92nd Warmest | Warmest since: | 2012 | ||||
| Jun 1939– 10-Month | 50.1°F (10.1°C) | 50.6°F (10.3°C) | -0.5°F | 43rd Coolest | Coolest since: | 1904 |
| 87th Warmest | Warmest since: | 2012 | ||||
| May 1939– 11-Month | 51.5°F (10.8°C) | 51.7°F (10.9°C) | -0.2°F | 54th Coolest | Coolest since: | 1918 |
| 76th Warmest | Warmest since: | 2012 | ||||
| Apr 1939– 12-Month | 51.2°F (10.7°C) | 51.6°F (10.9°C) | -0.4°F | 45th Coolest | Coolest since: | 1918 |
| 85th Warmest | Warmest since: | 2012 | ||||
| Ties: 1926, 1927 | ||||||
| Oct 1938– 18-Month | 47.2°F (8.4°C) | 46.6°F (8.1°C) | 0.6°F | 85th Coolest | Coolest since: | 1905 |
| 44th Warmest | Warmest since: | 2017 | ||||
| Apr 1938– 24-Month | 52.3°F (11.3°C) | 51.6°F (10.9°C) | 0.7°F | 86th Coolest | Coolest since: | 1905 |
| 43rd Warmest | Warmest since: | 2017 | ||||
| Apr 1937– 36-Month | 52.3°F (11.3°C) | 51.6°F (10.9°C) | 0.7°F | 89th Coolest | Coolest since: | 1979 |
| 39th Warmest | Warmest since: | 2018 | ||||
| Apr 1936– 48-Month | 52.4°F (11.3°C) | 51.6°F (10.9°C) | 0.8°F | 93rd Coolest | Coolest since: | 1980 |
| 34th Warmest | Warmest since: | 2019 | ||||
| Apr 1935– 60-Month | 51.8°F (11.0°C) | 51.6°F (10.9°C) | 0.2°F | 61st Coolest | Coolest since: | 1906 |
| 65th Warmest | Warmest since: | 2020 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
