NOAA's National Centers for Environmental Information
Statewide Rankings
Illinois
February 1998 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| February 1998 1-Month | 40.0°F (4.4°C) | 29.2°F (-1.6°C) | 10.8°F | 129th Coolest | Coolest since: | 1978 |
| 3rd Warmest | Warmest to Date | 2017 | ||||
| Jan– 2-Month | 35.9°F (2.2°C) | 27.3°F (-2.6°C) | 8.6°F | 129th Coolest | Coolest since: | 1979 |
| 3rd Warmest | Warmest since: | 2017 | ||||
| Dec 1997– 3-Month | 34.6°F (1.4°C) | 28.0°F (-2.2°C) | 6.6°F | 127th Coolest | Coolest since: | 1978 |
| 4th Warmest | Warmest since: | 1932 | ||||
| Nov 1997– 4-Month | 35.6°F (2.0°C) | 31.2°F (-0.4°C) | 4.4°F | 120th Coolest | Coolest since: | 1977 |
| 11th Warmest | Warmest since: | 1932 | ||||
| Oct 1997– 5-Month | 39.5°F (4.2°C) | 35.9°F (2.2°C) | 3.6°F | 120th Coolest | Coolest since: | 1977 |
| 11th Warmest | Warmest since: | 1932 | ||||
| Sep 1997– 6-Month | 43.9°F (6.6°C) | 41.0°F (5.0°C) | 2.9°F | 117th Coolest | Coolest since: | 1977 |
| 14th Warmest | Warmest since: | 1932 | ||||
| Aug 1997– 7-Month | 47.8°F (8.8°C) | 45.6°F (7.6°C) | 2.2°F | 114th Coolest | Coolest since: | 1977 |
| 17th Warmest | Warmest since: | 1932 | ||||
| Jul 1997– 8-Month | 51.2°F (10.7°C) | 49.4°F (9.7°C) | 1.8°F | 112th Coolest | Coolest since: | 1977 |
| 19th Warmest | Warmest since: | 1932 | ||||
| Jun 1997– 9-Month | 53.4°F (11.9°C) | 51.8°F (11.0°C) | 1.6°F | 103rd Coolest | Coolest since: | 1977 |
| 28th Warmest | Warmest since: | 1932 | ||||
| Ties: 1922 | ||||||
| May 1997– 10-Month | 53.8°F (12.1°C) | 52.8°F (11.6°C) | 1.0°F | 91st Coolest | Coolest since: | 1918 |
| 40th Warmest | Warmest since: | 1932 | ||||
| Apr 1997– 11-Month | 53.2°F (11.8°C) | 52.7°F (11.5°C) | 0.5°F | 72nd Coolest | Coolest since: | 1918 |
| 59th Warmest | Warmest since: | 1932 | ||||
| Ties: 1933, 1947 | ||||||
| Mar 1997– 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 1996– 18-Month | 48.2°F (9.0°C) | 48.1°F (8.9°C) | 0.1°F | 68th Coolest | Coolest since: | 1905 |
| 62nd Warmest | Warmest since: | 2017 | ||||
| Mar 1996– 24-Month | 51.3°F (10.7°C) | 51.6°F (10.9°C) | -0.3°F | 42nd Coolest | Coolest since: | 1905 |
| 88th Warmest | Warmest since: | 2017 | ||||
| Ties: 1910, 1937, 1960, 1967 | ||||||
| Mar 1995– 36-Month | 51.3°F (10.7°C) | 51.6°F (10.9°C) | -0.3°F | 40th Coolest | Coolest since: | 1979 |
| 89th Warmest | Warmest since: | 2013, 2018 | ||||
| Ties: 1902, 1908, 1938, 1959, 1986 | ||||||
| Mar 1994– 48-Month | 51.7°F (10.9°C) | 51.6°F (10.9°C) | 0.1°F | 61st Coolest | Coolest since: | 1905 |
| 67th Warmest | Warmest since: | 2025 | ||||
| Ties: 1948 | ||||||
| Mar 1993– 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 | ||||
| Ties: 1900, 1901, 1916, 1931, 1961, 1967, 1968, 1985, 1986 | ||||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings
