Average Soil Temperature in Sioux City, IA — January 2026
Data from Shagbark Hills (32.7 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
29.9°F
avg
23.7°F – 34.9°F
31 days
4" depth
31°F
avg
25.3°F – 35.6°F
31 days
8" depth
33.3°F
avg
28.8°F – 36.9°F
31 days
20" depth
36.4°F
avg
33.6°F – 38.3°F
31 days
40" depth
41.7°F
avg
39.4°F – 43.7°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Jan 1 | 32.4°F | 33.3°F | 35.2°F | 38.3°F | 43.7°F |
| Jan 2 | 32.2°F | 33.1°F | 35.1°F | 38.1°F | 43.5°F |
| Jan 3 | 32.2°F | 33.1°F | 34.9°F | 37.8°F | 43.3°F |
| Jan 4 | 32.4°F | 33.1°F | 34.9°F | 37.6°F | 43.2°F |
| Jan 5 | 32.5°F | 33.3°F | 34.9°F | 37.6°F | 43°F |
| Jan 6 | 33.1°F | 34°F | 35.4°F | 37.6°F | 42.8°F |
| Jan 7 | 34.7°F | 35.6°F | 36.3°F | 37.6°F | 42.8°F |
| Jan 8 | 34.9°F | 35.4°F | 36.9°F | 37.9°F | 42.6°F |
| Jan 9 | 33.8°F | 34.5°F | 36.1°F | 38.1°F | 42.6°F |
| Jan 10 | 32.5°F | 33.4°F | 35.4°F | 37.9°F | 42.6°F |
| Jan 11 | 32.2°F | 32.9°F | 34.9°F | 37.8°F | 42.6°F |
| Jan 12 | 32.2°F | 32.9°F | 34.7°F | 37.4°F | 42.4°F |
| Jan 13 | 34.3°F | 34.9°F | 35.6°F | 37.2°F | 42.3°F |
| Jan 14 | 32.4°F | 33.3°F | 35.1°F | 37.4°F | 42.3°F |
| Jan 15 | 32°F | 32.7°F | 34.5°F | 37.2°F | 42.1°F |
| Jan 16 | 31.8°F | 32.5°F | 34.5°F | 37°F | 42.1°F |
| Jan 17 | 30.6°F | 32°F | 34°F | 36.9°F | 41.9°F |
| Jan 18 | 29.8°F | 31.5°F | 33.6°F | 36.7°F | 41.7°F |
| Jan 19 | 28.4°F | 30.2°F | 33.3°F | 36.3°F | 41.5°F |
| Jan 20 | 29.5°F | 30.4°F | 32.9°F | 36°F | 41.4°F |
| Jan 21 | 28.8°F | 30.2°F | 32.7°F | 35.8°F | 41.2°F |
| Jan 22 | 27.1°F | 28.9°F | 32.4°F | 35.6°F | 41°F |
| Jan 23 | 25.3°F | 27.1°F | 31.6°F | 35.4°F | 40.8°F |
| Jan 24 | 24.3°F | 26.2°F | 30.7°F | 35.2°F | 40.8°F |
| Jan 25 | 24.6°F | 26.4°F | 30.2°F | 34.9°F | 40.6°F |
| Jan 26 | 25.7°F | 26.8°F | 29.8°F | 34.5°F | 40.3°F |
| Jan 27 | 25.7°F | 26.8°F | 29.7°F | 34.3°F | 40.1°F |
| Jan 28 | 26.6°F | 27.7°F | 30.2°F | 34.2°F | 39.9°F |
| Jan 29 | 25.5°F | 27.1°F | 30°F | 34°F | 39.7°F |
| Jan 30 | 23.7°F | 25.3°F | 28.9°F | 33.8°F | 39.6°F |
| Jan 31 | 25.3°F | 26.2°F | 28.8°F | 33.6°F | 39.4°F |