Humid subtropical climate
Climate Carbondale - Illinois
Annual high67ºF
Annual low45ºF
Precipitation47.17 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 42 | 23 | 3.06 | 3 |
| Feb | 47 | 26 | 3.08 | 4 |
| Mar | 57 | 35 | 4.15 | 1 |
| Apr | 68 | 44 | 4.45 | 0 |
| May | 77 | 55 | 5.37 | 0 |
| Jun | 86 | 64 | 4.51 | 0 |
| Jul | 89 | 67 | 3.66 | 0 |
| Aug | 89 | 64 | 3.26 | 0 |
| Sep | 82 | 55 | 3.14 | 0 |
| Oct | 70 | 44 | 3.81 | 0 |
| Nov | 58 | 36 | 4.63 | 0 |
| Dec | 45 | 26 | 4.05 | 3 |
- JanHigh 42ºFLow 23ºFPrecip 3.06 inch
- FebHigh 47ºFLow 26ºFPrecip 3.08 inch
- MarHigh 57ºFLow 35ºFPrecip 4.15 inch
- AprHigh 68ºFLow 44ºFPrecip 4.45 inch
- MayHigh 77ºFLow 55ºFPrecip 5.37 inch
- JunHigh 86ºFLow 64ºFPrecip 4.51 inch
- JulHigh 89ºFLow 67ºFPrecip 3.66 inch
- AugHigh 89ºFLow 64ºFPrecip 3.26 inch
- SepHigh 82ºFLow 55ºFPrecip 3.14 inch
- OctHigh 70ºFLow 44ºFPrecip 3.81 inch
- NovHigh 58ºFLow 36ºFPrecip 4.63 inch
- DecHigh 45ºFLow 26ºFPrecip 4.05 inch
Climate summary
What is the average weather in Carbondale, Illinois?
Carbondale experiences a humid subtropical climate, marked by a very large seasonal temperature contrast. Summers are hot, while winters are cold and bring regular snowfall. Rainfall is fairly wet overall, spread fairly evenly throughout the year, though heavy seasonal downpours can occur during warmer months.
Carbondale weather averages
Annual high67ºF
Annual low45ºF
Precipitation47.17 inch
Snowfall11 inch
Daily normals Carbondale - Illinois - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 41.8 | 24.5 | 0.12 | 0.12 | 0.10 | 0.10 |
| Jan 2 | 41.6 | 24.4 | 0.24 | 0.24 | 0.20 | 0.20 |
| Jan 3 | 41.5 | 24.2 | 0.36 | 0.36 | 0.30 | 0.30 |
| Jan 4 | 41.4 | 24.1 | 0.48 | 0.48 | 0.40 | 0.40 |
| Jan 5 | 41.3 | 24.0 | 0.60 | 0.60 | 0.50 | 0.50 |
| Jan 6 | 41.2 | 23.9 | 0.71 | 0.71 | 0.60 | 0.60 |
| Jan 7 | 41.1 | 23.8 | 0.82 | 0.82 | 0.70 | 0.70 |
| Jan 8 | 41.0 | 23.7 | 0.94 | 0.94 | 0.80 | 0.80 |
| Jan 9 | 40.9 | 23.6 | 1.05 | 1.05 | 0.90 | 0.90 |
| Jan 10 | 40.9 | 23.5 | 1.17 | 1.17 | 1.00 | 1.00 |
| Jan 11 | 40.8 | 23.4 | 1.28 | 1.28 | 1.10 | 1.10 |
| Jan 12 | 40.8 | 23.3 | 1.39 | 1.39 | 1.20 | 1.20 |
| Jan 13 | 40.8 | 23.3 | 1.50 | 1.50 | 1.20 | 1.20 |
| Jan 14 | 40.8 | 23.2 | 1.61 | 1.61 | 1.30 | 1.30 |
| Jan 15 | 40.8 | 23.1 | 1.72 | 1.72 | 1.40 | 1.40 |
| Jan 16 | 40.8 | 23.1 | 1.83 | 1.83 | 1.50 | 1.50 |
| Jan 17 | 40.8 | 23.0 | 1.94 | 1.94 | 1.60 | 1.60 |
| Jan 18 | 40.9 | 23.0 | 2.04 | 2.04 | 1.70 | 1.70 |
| Jan 19 | 40.9 | 23.0 | 2.15 | 2.15 | 1.90 | 1.90 |
| Jan 20 | 41.0 | 23.0 | 2.25 | 2.25 | 2.00 | 2.00 |
| Jan 21 | 41.1 | 22.9 | 2.36 | 2.36 | 2.10 | 2.10 |
| Jan 22 | 41.2 | 22.9 | 2.46 | 2.46 | 2.20 | 2.20 |
| Jan 23 | 41.3 | 23.0 | 2.56 | 2.56 | 2.30 | 2.30 |
| Jan 24 | 41.4 | 23.0 | 2.67 | 2.67 | 2.40 | 2.40 |
| Jan 25 | 41.5 | 23.0 | 2.78 | 2.78 | 2.50 | 2.50 |
| Jan 26 | 41.7 | 23.1 | 2.87 | 2.87 | 2.60 | 2.60 |
| Jan 27 | 41.8 | 23.1 | 2.97 | 2.97 | 2.70 | 2.70 |
| Jan 28 | 42.0 | 23.2 | 3.07 | 3.07 | 2.80 | 2.80 |
| Jan 29 | 42.2 | 23.3 | 3.16 | 3.16 | 3.00 | 3.00 |
| Jan 30 | 42.4 | 23.4 | 3.26 | 3.26 | 3.10 | 3.10 |
| Jan 31 | 42.6 | 23.5 | 3.36 | 3.36 | 3.20 | 3.20 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Carbondale - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 90.0 | 61.0 | 0.00 |
| Oct 2 | 91.0 | 69.1 | 0.61 |
| Oct 3 | – | – | – |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 84.0 | 46.0 | 0.00 |
| Oct 9 | 84.0 | 48.0 | 0.00 |
| Oct 10 | 87.1 | 48.0 | 0.00 |
| Oct 11 | 71.1 | 52.0 | 0.00 |
| Oct 12 | 84.0 | 52.0 | 0.00 |
| Oct 13 | 88.0 | 57.0 | 0.00 |
| Oct 14 | 89.1 | 61.0 | 0.00 |
| Oct 15 | 79.0 | 69.1 | 0.64 |
| Oct 16 | 87.1 | 53.1 | 0.16 |
| Oct 17 | 57.9 | 44.1 | 0.00 |
| Oct 18 | – | – | – |
| Oct 19 | 66.0 | 34.0 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | – | – | – |
| Oct 23 | 75.9 | 43.0 | 0.00 |
| Oct 24 | 75.9 | 41.0 | 0.00 |
| Oct 25 | 75.9 | 41.0 | 0.00 |
| Oct 26 | 78.1 | 43.0 | 0.00 |
| Oct 27 | 75.0 | 45.0 | 0.00 |
| Oct 28 | 73.0 | 45.0 | 0.00 |
| Oct 29 | 77.0 | 45.0 | 0.00 |
| Oct 30 | 81.0 | 46.9 | 0.00 |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature91.0ºF · Oct 2
- Lowest max temperature57.9ºF · Oct 17
- Highest min temperature69.1ºF · Oct 2
- Lowest min temperature34.0ºF · Oct 19
Geo Carbondale - Illinois
Location
- Country
- United States
- State
- Illinois
- County
- Jackson
- City
- Carbondale
- Zip Code
- 62966
- Elevation
- 410 ft
- Longitude
- -89.25
- Latitude
- 37.78
- ICAO
- –
- IATA
- –