Carbondale, IL
Climate overview — based on NOAA 1991-2020 normals from CARBONDALE SEWAGE PLT, IL US.
Year-round temperatures (°F)
Climate summary
Carbondale has an annual average temperature of 56°F with about 49 inches of precipitation per year and 11.4 inches of snow. The warmest month is July (average high 88.1°F), and the coldest is January (average low 23.4°F). April is typically the wettest month (5.55 in) and February the driest (3.11 in). Snow typically falls from October through March.
Best time to visit Carbondale
Full guide →Climate change signal
All-time records →18 of 366 (4.9%) of Carbondale's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 2 | |
| 1900s | 18 | |
| 1910s | 83 | |
| 1920s | 55 | |
| 1930s | 77 | |
| 1940s | 22 | |
| 1950s | 23 | |
| 1960s | 18 | |
| 1970s | 7 | |
| 1980s | 11 | |
| 1990s | 8 | |
| 2000s | 14 | |
| 2010s | 15 | |
| 2020s | 13 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 41.3°F | 23.4°F | 32.4°F | 3.36 in | 3.2 in | 10 |
| February | 46.3°F | 26.4°F | 36.4°F | 3.11 in | 4.0 in | 9 |
| March | 56.1°F | 34.5°F | 45.3°F | 4.52 in | 1.3 in | 12 |
| April | 67.7°F | 44.3°F | 56.0°F | 5.55 in | — | 12 |
| May | 76.6°F | 55.1°F | 65.9°F | 5.18 in | — | 13 |
| June | 84.9°F | 63.9°F | 74.4°F | 4.60 in | — | 10 |
| July | 88.1°F | 67.6°F | 77.9°F | 4.12 in | — | 9 |
| August | 87.4°F | 64.6°F | 76.0°F | 3.16 in | — | 9 |
| September | 81.2°F | 56.0°F | 68.6°F | 3.44 in | — | 8 |
| October | 69.9°F | 44.1°F | 57.0°F | 3.70 in | 0.2 in | 9 |
| November | 56.2°F | 34.8°F | 45.5°F | 4.49 in | — | 10 |
| December | 45.4°F | 27.2°F | 36.3°F | 3.72 in | 2.7 in | 11 |
Climate twins of Carbondale
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).