Average Soil Temperature in South Portland, ME — March 2023
Data from Durham 2 N (46 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
35.8°F
avg
33.1°F – 40.5°F
31 days
4" depth
35.9°F
avg
33.3°F – 40.1°F
31 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| Mar 1 | 33.1°F | 33.3°F |
| Mar 2 | 33.3°F | 33.3°F |
| Mar 3 | 33.6°F | 33.6°F |
| Mar 4 | 33.8°F | 33.8°F |
| Mar 5 | 34.2°F | 34°F |
| Mar 6 | 34.2°F | 34.2°F |
| Mar 7 | 34.2°F | 34.2°F |
| Mar 8 | 34°F | 34.2°F |
| Mar 9 | 34.2°F | 34.3°F |
| Mar 10 | 34.2°F | 34.5°F |
| Mar 11 | 34.3°F | 34.7°F |
| Mar 12 | 34.3°F | 34.7°F |
| Mar 13 | 34.7°F | 35.1°F |
| Mar 14 | 35.1°F | 35.2°F |
| Mar 15 | 34.7°F | 34.9°F |
| Mar 16 | 34.7°F | 34.9°F |
| Mar 17 | 34.7°F | 34.9°F |
| Mar 18 | 35.1°F | 35.4°F |
| Mar 19 | 34.2°F | 34.7°F |
| Mar 20 | 34.2°F | 34.5°F |
| Mar 21 | 35.8°F | 35.6°F |
| Mar 22 | 38.5°F | 37.8°F |
| Mar 23 | 40.1°F | 39.4°F |
| Mar 24 | 39.9°F | 39.6°F |
| Mar 25 | 36.9°F | 37.2°F |
| Mar 26 | 39°F | 38.5°F |
| Mar 27 | 39.7°F | 39.2°F |
| Mar 28 | 40.5°F | 40.1°F |
| Mar 29 | 39.2°F | 39°F |
| Mar 30 | 38.8°F | 38.8°F |
| Mar 31 | 37.8°F | 37.8°F |