Average Soil Temperature in Spearfish, SD — January 2023
Data from Sundance 8 NNW (28.4 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
30.1°F
avg
28.4°F – 31.3°F
31 days
4" depth
30.1°F
avg
28.6°F – 31.5°F
31 days
8" depth
31.1°F
avg
30°F – 31.8°F
31 days
20" depth
33°F
avg
32.5°F – 33.4°F
31 days
40" depth
34.8°F
avg
34.5°F – 34.9°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Jan 1 | 29.3°F | 28.9°F | 30.6°F | 32.9°F | 34.9°F |
| Jan 2 | 29.3°F | 29.3°F | 30.6°F | 32.9°F | 34.9°F |
| Jan 3 | 29.5°F | 29.5°F | 30.7°F | 32.9°F | 34.9°F |
| Jan 4 | 29.3°F | 29.5°F | 30.7°F | 32.9°F | 34.9°F |
| Jan 5 | 28.9°F | 28.9°F | 30.6°F | 32.9°F | 34.9°F |
| Jan 6 | 28.6°F | 28.6°F | 30.2°F | 32.9°F | 34.9°F |
| Jan 7 | 28.8°F | 28.8°F | 30.2°F | 32.7°F | 34.9°F |
| Jan 8 | 28.9°F | 28.9°F | 30.2°F | 32.7°F | 34.9°F |
| Jan 9 | 29.1°F | 29.3°F | 30.4°F | 32.5°F | 34.7°F |
| Jan 10 | 29.5°F | 29.5°F | 30.6°F | 32.7°F | 34.7°F |
| Jan 11 | 28.9°F | 29.1°F | 30.6°F | 32.7°F | 34.7°F |
| Jan 12 | 28.4°F | 28.6°F | 30.2°F | 32.5°F | 34.7°F |
| Jan 13 | 28.9°F | 28.9°F | 30°F | 32.5°F | 34.7°F |
| Jan 14 | 30.7°F | 30.4°F | 30.7°F | 32.5°F | 34.5°F |
| Jan 15 | 31.1°F | 30.9°F | 31.3°F | 32.7°F | 34.5°F |
| Jan 16 | 31.3°F | 31.1°F | 31.5°F | 32.9°F | 34.7°F |
| Jan 17 | 31.3°F | 31.5°F | 31.6°F | 33.1°F | 34.7°F |
| Jan 18 | 31.3°F | 31.5°F | 31.8°F | 33.3°F | 34.7°F |
| Jan 19 | 31.1°F | 31.3°F | 31.8°F | 33.3°F | 34.7°F |
| Jan 20 | 30.9°F | 30.9°F | 31.8°F | 33.4°F | 34.7°F |
| Jan 21 | 30.9°F | 30.7°F | 31.8°F | 33.4°F | 34.9°F |
| Jan 22 | 30.9°F | 30.7°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 23 | 30.9°F | 30.9°F | 31.8°F | 33.4°F | 34.9°F |
| Jan 24 | 30.7°F | 30.7°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 25 | 30.7°F | 30.7°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 26 | 30.7°F | 30.7°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 27 | 30.9°F | 30.9°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 28 | 31.1°F | 30.9°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 29 | 30.9°F | 30.7°F | 31.6°F | 33.4°F | 34.9°F |
| Jan 30 | 30.6°F | 30°F | 31.5°F | 33.4°F | 34.9°F |
| Jan 31 | 30.2°F | 29.5°F | 31.1°F | 33.3°F | 34.9°F |