Average Soil Temperature in Carbondale, IL for September 2025
Data from Dexter (75.8 mi away) • 30 of 30 days reported
Monthly Summary by Depth
2" depth
76.7°F
avg
70°F – 82.6°F
30 days
4" depth
78.1°F
avg
72°F – 83.7°F
30 days
8" depth
79.8°F
avg
74.5°F – 84.6°F
30 days
20" depth
78.7°F
avg
74.8°F – 81.9°F
30 days
40" depth
76.5°F
avg
74.1°F – 77.9°F
30 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 81°F | 82.2°F | 83.7°F | 81.1°F | 77.7°F |
| Sep 2 | 81.9°F | 82.9°F | 84°F | 81.5°F | 77.7°F |
| Sep 3 | 81.3°F | 82.6°F | 84°F | 81.7°F | 77.9°F |
| Sep 4 | 78.6°F | 80.1°F | 81.7°F | 81°F | 77.9°F |
| Sep 5 | 77.2°F | 78.6°F | 80.2°F | 80.1°F | 77.7°F |
| Sep 6 | 71.8°F | 74.1°F | 77.7°F | 78.8°F | 77.5°F |
| Sep 7 | 71.2°F | 73.6°F | 77°F | 77.5°F | 77°F |
| Sep 8 | 72°F | 73.9°F | 76.8°F | 77°F | 76.5°F |
| Sep 9 | 77.5°F | 78.4°F | 79.3°F | 77.2°F | 76.1°F |
| Sep 10 | 78.8°F | 79.9°F | 81°F | 78.3°F | 75.9°F |
| Sep 11 | 80.4°F | 81.5°F | 82.2°F | 79.3°F | 75.9°F |
| Sep 12 | 82°F | 82.9°F | 83.7°F | 80.2°F | 76.3°F |
| Sep 13 | 81.3°F | 82.4°F | 82.9°F | 80.6°F | 76.5°F |
| Sep 14 | 82.2°F | 83.7°F | 84.6°F | 81.1°F | 76.6°F |
| Sep 15 | 81.3°F | 82.6°F | 83.5°F | 81.3°F | 77°F |
| Sep 16 | 82°F | 83.3°F | 84.6°F | 81.7°F | 77.2°F |
| Sep 17 | 81.3°F | 82.8°F | 84.2°F | 81.7°F | 77.4°F |
| Sep 18 | 82.6°F | 83.7°F | 84.6°F | 81.9°F | 77.4°F |
| Sep 19 | 77.2°F | 78.8°F | 80.6°F | 80.6°F | 77.5°F |
| Sep 20 | 77.2°F | 78.4°F | 79.7°F | 79.3°F | 77.4°F |
| Sep 21 | 76.8°F | 78.4°F | 80.6°F | 79.2°F | 77°F |
| Sep 22 | 74.8°F | 76.3°F | 77.9°F | 78.3°F | 76.8°F |
| Sep 23 | 72.9°F | 73.6°F | 74.8°F | 76.6°F | 76.5°F |
| Sep 24 | 73.2°F | 73.9°F | 75.2°F | 76.1°F | 75.9°F |
| Sep 25 | 70.5°F | 72.5°F | 75.2°F | 75.9°F | 75.6°F |
| Sep 26 | 70°F | 72°F | 74.5°F | 75.2°F | 75.2°F |
| Sep 27 | 70.9°F | 72.7°F | 74.8°F | 74.8°F | 74.8°F |
| Sep 28 | 71.2°F | 72.9°F | 75°F | 74.8°F | 74.5°F |
| Sep 29 | 71.1°F | 72.7°F | 74.8°F | 74.8°F | 74.3°F |
| Sep 30 | 71.4°F | 73°F | 74.8°F | 74.8°F | 74.1°F |