Average Soil Temperature in South Portland, ME — May 2023
Data from Durham 2 N (46 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
53.8°F
avg
48.4°F – 58.5°F
31 days
4" depth
52.9°F
avg
48°F – 57.4°F
31 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| May 1 | 50.9°F | 49.6°F |
| May 2 | 49.1°F | 48.6°F |
| May 3 | 49.3°F | 48.7°F |
| May 4 | 48.4°F | 48°F |
| May 5 | 49.8°F | 48.9°F |
| May 6 | 51.3°F | 50.2°F |
| May 7 | 53.4°F | 52°F |
| May 8 | 55.2°F | 53.8°F |
| May 9 | 52°F | 51.6°F |
| May 10 | 51.4°F | 50.7°F |
| May 11 | 53.4°F | 52.2°F |
| May 12 | 55.4°F | 53.8°F |
| May 13 | 56.8°F | 55.4°F |
| May 14 | 54.5°F | 53.8°F |
| May 15 | 53.4°F | 52.7°F |
| May 16 | 54°F | 53.1°F |
| May 17 | 54°F | 53.2°F |
| May 18 | 51.3°F | 51.1°F |
| May 19 | 53.1°F | 52.2°F |
| May 20 | 54°F | 52.9°F |
| May 21 | 57.4°F | 55.8°F |
| May 22 | 56.5°F | 55.6°F |
| May 23 | 54.7°F | 54.1°F |
| May 24 | 54.3°F | 53.8°F |
| May 25 | 55.4°F | 54.5°F |
| May 26 | 54.5°F | 53.8°F |
| May 27 | 55.2°F | 54.1°F |
| May 28 | 58.3°F | 56.5°F |
| May 29 | 58.5°F | 57.4°F |
| May 30 | 56.3°F | 55.6°F |
| May 31 | 57°F | 55.9°F |