Average Soil Temperature in Duluth, MN for July 2026
Data from Sandstone 6 W (62.7 mi away) • 25 of 31 days reported
Monthly Summary by Depth
2" depth
69.3°F
avg
65.8°F – 72.7°F
25 days
4" depth
70.1°F
avg
66.6°F – 73.2°F
25 days
8" depth
67.7°F
avg
64.4°F – 70.3°F
25 days
20" depth
67.3°F
avg
63.9°F – 69.6°F
25 days
40" depth
62.5°F
avg
58.6°F – 64.8°F
25 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Jul 1 | 65.8°F | 66.6°F | 64.4°F | 63.9°F | 58.6°F |
| Jul 2 | 66.6°F | 67.3°F | 64.4°F | 63.9°F | 59°F |
| Jul 3 | 68.5°F | 69.1°F | 65.7°F | 64.6°F | 59.4°F |
| Jul 4 | 68.4°F | 69.1°F | 66.2°F | 65.5°F | 59.9°F |
| Jul 5 | 67.6°F | 68.4°F | 65.8°F | 65.5°F | 60.4°F |
| Jul 6 | 67.8°F | 68.5°F | 66°F | 65.7°F | 60.6°F |
| Jul 7 | 68.4°F | 69.1°F | 66.6°F | 65.8°F | 61°F |
| Jul 8 | 68.7°F | 69.4°F | 67.1°F | 66.6°F | 61.3°F |
| Jul 9 | 68°F | 68.9°F | 66.7°F | 66.4°F | 61.7°F |
| Jul 10 | 68.7°F | 69.4°F | 67.1°F | 66.6°F | 61.9°F |
| Jul 11 | 69.4°F | 70.3°F | 67.5°F | 67.1°F | 62.1°F |
| Jul 12 | 71.2°F | 72°F | 68.5°F | 67.8°F | 62.4°F |
| Jul 13 | 72.3°F | 73°F | 69.6°F | 68.7°F | 63°F |
| Jul 14 | 72.7°F | 73.2°F | 70.2°F | 69.3°F | 63.3°F |
| Jul 15 | 72.1°F | 72.9°F | 70.3°F | 69.6°F | 63.9°F |
| Jul 16 | 70.5°F | 71.4°F | 69.4°F | 69.1°F | 64.2°F |
| Jul 17 | 71.6°F | 72.3°F | 69.6°F | 69.1°F | 64.2°F |
| Jul 18 | 71.6°F | 72.5°F | 70°F | 69.3°F | 64.4°F |
| Jul 19 | 71.2°F | 72.1°F | 69.8°F | 69.3°F | 64.4°F |
| Jul 20 | 71.8°F | 72.7°F | 70.2°F | 69.4°F | 64.8°F |
| Jul 21 | 70.3°F | 71.2°F | 69.6°F | 69.3°F | 64.8°F |
| Jul 22 | 67.6°F | 68.7°F | 68°F | 68.4°F | 64.8°F |
| Jul 23 | 66.7°F | 67.8°F | 66.9°F | 67.5°F | 64.4°F |
| Jul 24 | 66.9°F | 67.8°F | 66.7°F | 67.1°F | 64°F |
| Jul 25 | 68.7°F | 69.6°F | 67.3°F | 67.1°F | 63.9°F |