Average Soil Temperature in Helena, MT for August 2025
Data from Table Mountain (59.7 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
70°F
avg
63.1°F – 74.5°F
31 days
4" depth
71.9°F
avg
66°F – 75.2°F
31 days
8" depth
70.5°F
avg
65.7°F – 73.4°F
31 days
20" depth
67.7°F
avg
65.5°F – 69.4°F
31 days
40" depth
60.6°F
avg
59.4°F – 61.9°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Aug 1 | 70°F | 71.6°F | 70.2°F | 67.1°F | 59.4°F |
| Aug 2 | 72.7°F | 73.9°F | 70.9°F | 67.1°F | 59.5°F |
| Aug 3 | 74.5°F | 75.2°F | 71.8°F | 67.3°F | 59.7°F |
| Aug 4 | 70°F | 72.3°F | 71.2°F | 67.8°F | 59.7°F |
| Aug 5 | 71.8°F | 73.9°F | 71.6°F | 67.8°F | 59.9°F |
| Aug 6 | 73.4°F | 74.8°F | 72°F | 68°F | 60.1°F |
| Aug 7 | 64.6°F | 68°F | 68.9°F | 68°F | 60.3°F |
| Aug 8 | 63.1°F | 66.4°F | 66.2°F | 67.1°F | 60.4°F |
| Aug 9 | 66°F | 68.2°F | 65.8°F | 66°F | 60.4°F |
| Aug 10 | 65.7°F | 67.6°F | 65.7°F | 65.7°F | 60.3°F |
| Aug 11 | 68.5°F | 70.3°F | 67.5°F | 65.5°F | 60.1°F |
| Aug 12 | 70.2°F | 71.6°F | 69.6°F | 65.7°F | 60.1°F |
| Aug 13 | 71.6°F | 73.6°F | 71.1°F | 66.4°F | 59.9°F |
| Aug 14 | 72°F | 73.9°F | 71.8°F | 66.9°F | 60.1°F |
| Aug 15 | 73.2°F | 75°F | 72.7°F | 67.5°F | 60.1°F |
| Aug 16 | 70.3°F | 72.5°F | 72°F | 68°F | 60.3°F |
| Aug 17 | 68.4°F | 70.5°F | 70.3°F | 68°F | 60.4°F |
| Aug 18 | 70.5°F | 72.7°F | 71.4°F | 67.8°F | 60.6°F |
| Aug 19 | 73°F | 74.8°F | 72.7°F | 68°F | 60.6°F |
| Aug 20 | 73°F | 75°F | 73.4°F | 68.5°F | 60.8°F |
| Aug 21 | 73.8°F | 75°F | 73.2°F | 68.9°F | 61°F |
| Aug 22 | 72.3°F | 74.5°F | 73°F | 69.1°F | 61°F |
| Aug 23 | 72.1°F | 74.5°F | 72.9°F | 69.1°F | 61.3°F |
| Aug 24 | 71.4°F | 73.8°F | 72.7°F | 69.3°F | 61.3°F |
| Aug 25 | 74.3°F | 75.2°F | 73°F | 69.3°F | 61.5°F |
| Aug 26 | 74.5°F | 74.8°F | 72.9°F | 69.4°F | 61.7°F |
| Aug 27 | 66.7°F | 69.3°F | 69.6°F | 69.4°F | 61.7°F |
| Aug 28 | 64.2°F | 66°F | 67.3°F | 68.5°F | 61.9°F |
| Aug 29 | 65.8°F | 67.6°F | 67.5°F | 67.6°F | 61.9°F |
| Aug 30 | 65.8°F | 68.2°F | 68°F | 67.1°F | 61.7°F |
| Aug 31 | 65.5°F | 68°F | 67.6°F | 66.7°F | 61.7°F |