Average Soil Temperature in Des Plaines, IL — December 2025
Data from Shabbona 5 NNE (51.6 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
36.5°F
avg
32.7°F – 40.6°F
31 days
4" depth
37.6°F
avg
34.9°F – 40.3°F
31 days
8" depth
37.9°F
avg
35.6°F – 39.9°F
31 days
40" depth
43.9°F
avg
42.1°F – 46.2°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 40" |
|---|---|---|---|---|
| Dec 1 | 37.8°F | 38.5°F | 39.2°F | 46.2°F |
| Dec 2 | 38.1°F | 38.7°F | 39.4°F | 46°F |
| Dec 3 | 38.3°F | 38.8°F | 39.6°F | 45.7°F |
| Dec 4 | 38.3°F | 38.8°F | 39.4°F | 45.7°F |
| Dec 5 | 38.3°F | 38.8°F | 39.4°F | 45.5°F |
| Dec 6 | 38.3°F | 38.8°F | 39.4°F | 45.3°F |
| Dec 7 | 38.1°F | 38.7°F | 39.4°F | 45.1°F |
| Dec 8 | 38.1°F | 38.7°F | 39.2°F | 45.1°F |
| Dec 9 | 38.1°F | 38.5°F | 39.2°F | 45°F |
| Dec 10 | 37.6°F | 38.3°F | 39°F | 44.8°F |
| Dec 11 | 37.6°F | 38.1°F | 38.8°F | 44.6°F |
| Dec 12 | 37.6°F | 38.1°F | 38.8°F | 44.4°F |
| Dec 13 | 37.4°F | 37.9°F | 38.5°F | 44.4°F |
| Dec 14 | 36.5°F | 37.8°F | 38.1°F | 44.2°F |
| Dec 15 | 35.8°F | 37.6°F | 37.8°F | 44.1°F |
| Dec 16 | 35.8°F | 37.4°F | 37.4°F | 44.1°F |
| Dec 17 | 36°F | 37.2°F | 37.4°F | 43.9°F |
| Dec 18 | 36°F | 37.2°F | 37.6°F | 43.7°F |
| Dec 19 | 34.3°F | 36.5°F | 36.7°F | 43.5°F |
| Dec 20 | 33.8°F | 35.8°F | 36°F | 43.3°F |
| Dec 21 | 33.8°F | 35.8°F | 35.8°F | 43°F |
| Dec 22 | 33.8°F | 35.6°F | 35.6°F | 42.8°F |
| Dec 23 | 34.2°F | 35.8°F | 35.6°F | 42.6°F |
| Dec 24 | 34.7°F | 36°F | 35.8°F | 42.4°F |
| Dec 25 | 35.4°F | 36.3°F | 36.1°F | 42.4°F |
| Dec 26 | 37.6°F | 37.4°F | 37.2°F | 42.1°F |
| Dec 27 | 38.5°F | 38.5°F | 38.3°F | 42.1°F |
| Dec 28 | 40.6°F | 40.3°F | 39.9°F | 42.4°F |
| Dec 29 | 35.1°F | 37.9°F | 38.8°F | 42.6°F |
| Dec 30 | 32.9°F | 35.6°F | 36.5°F | 42.6°F |
| Dec 31 | 32.7°F | 34.9°F | 35.8°F | 42.1°F |