Average Soil Temperature in Duluth, MN for March 2026
Data from Sandstone 6 W (62.7 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
31.4°F
avg
30.6°F – 32.5°F
31 days
4" depth
31.9°F
avg
31.3°F – 32.7°F
31 days
8" depth
32°F
avg
31.8°F – 32.5°F
31 days
20" depth
32.4°F
avg
32.4°F – 32.9°F
31 days
40" depth
33.6°F
avg
33.6°F – 33.8°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Mar 1 | 30.7°F | 31.6°F | 31.8°F | 32.4°F | 33.8°F |
| Mar 2 | 30.6°F | 31.3°F | 31.8°F | 32.4°F | 33.8°F |
| Mar 3 | 31.1°F | 31.6°F | 31.8°F | 32.4°F | 33.8°F |
| Mar 4 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 5 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 6 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 7 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 8 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 9 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 10 | 31.5°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 11 | 31.5°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 12 | 31.5°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 13 | 31.5°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 14 | 31.5°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 15 | 31.3°F | 31.8°F | 31.8°F | 32.4°F | 33.6°F |
| Mar 16 | 31.3°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 17 | 31.3°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 18 | 31.3°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 19 | 31.3°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 20 | 31.3°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 21 | 31.5°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 22 | 31.5°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 23 | 31.5°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 24 | 31.5°F | 31.8°F | 32°F | 32.4°F | 33.6°F |
| Mar 25 | 31.5°F | 32°F | 32°F | 32.4°F | 33.6°F |
| Mar 26 | 31.5°F | 32°F | 32.2°F | 32.5°F | 33.6°F |
| Mar 27 | 31.5°F | 32°F | 32.2°F | 32.5°F | 33.6°F |
| Mar 28 | 31.5°F | 32°F | 32.2°F | 32.5°F | 33.6°F |
| Mar 29 | 31.6°F | 32°F | 32.2°F | 32.5°F | 33.6°F |
| Mar 30 | 32°F | 32.5°F | 32.4°F | 32.7°F | 33.6°F |
| Mar 31 | 32.5°F | 32.7°F | 32.5°F | 32.9°F | 33.8°F |