Average Soil Temperature in Portland, ME for April 2026
Data from Durham 2 N (47.8 mi away) • 24 of 30 days reported
Monthly Summary by Depth
2" depth
49°F
avg
39.7°F – 56.3°F
24 days
4" depth
48.2°F
avg
40.1°F – 54.5°F
24 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| Apr 1 | 45.9°F | 44.6°F |
| Apr 2 | 42.6°F | 42.8°F |
| Apr 3 | 43.2°F | 42.4°F |
| Apr 4 | 46.8°F | 45.7°F |
| Apr 5 | 45.1°F | 44.8°F |
| Apr 6 | 43.7°F | 43.5°F |
| Apr 7 | 39.7°F | 40.1°F |
| Apr 8 | 41.2°F | 40.8°F |
| Apr 15 | 56.3°F | 54.5°F |
| Apr 16 | 54.9°F | 53.4°F |
| Apr 17 | 55.4°F | 54°F |
| Apr 18 | 54.5°F | 53.4°F |
| Apr 19 | 50.7°F | 50.7°F |
| Apr 20 | 47.7°F | 47.5°F |
| Apr 21 | 47.7°F | 47.1°F |
| Apr 22 | 45.9°F | 45.7°F |
| Apr 23 | 49.3°F | 47.8°F |
| Apr 24 | 49.6°F | 48.7°F |
| Apr 25 | 49.8°F | 48.7°F |
| Apr 26 | 51.4°F | 50.2°F |
| Apr 27 | 53.8°F | 52.2°F |
| Apr 28 | 54.3°F | 53.1°F |
| Apr 29 | 53.8°F | 52.7°F |
| Apr 30 | 52.3°F | 51.4°F |