Average Soil Temperature in Lake Oswego, OR — May 2025
Data from Corvallis 10 SSW (75.3 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
64°F
avg
59.4°F – 69.8°F
31 days
4" depth
61.2°F
avg
58.3°F – 66°F
31 days
8" depth
60.5°F
avg
58.5°F – 64.8°F
31 days
20" depth
59.2°F
avg
57.7°F – 62.1°F
31 days
40" depth
56.7°F
avg
55.2°F – 58.1°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| May 1 | 63.7°F | 60.1°F | 59.2°F | 57.7°F | 55.2°F |
| May 2 | 63.5°F | 60.6°F | 59.9°F | 58.1°F | 55.4°F |
| May 3 | 62.1°F | 60.1°F | 59.9°F | 58.3°F | 55.6°F |
| May 4 | 61°F | 58.3°F | 58.5°F | 58.1°F | 55.6°F |
| May 5 | 63.3°F | 59.7°F | 59°F | 57.9°F | 55.8°F |
| May 6 | 66°F | 61.7°F | 60.1°F | 58.3°F | 55.8°F |
| May 7 | 65.3°F | 62.1°F | 61°F | 59°F | 55.9°F |
| May 8 | 65.5°F | 61.7°F | 60.8°F | 59.2°F | 56.1°F |
| May 9 | 66.4°F | 62.1°F | 61°F | 59.4°F | 56.3°F |
| May 10 | 65.1°F | 62.1°F | 61.5°F | 59.7°F | 56.5°F |
| May 11 | 63.1°F | 61.3°F | 61°F | 59.7°F | 56.7°F |
| May 12 | 60.6°F | 59.4°F | 59.9°F | 59.4°F | 56.8°F |
| May 13 | 60.6°F | 59.2°F | 59.2°F | 59°F | 56.8°F |
| May 14 | 61.7°F | 59.9°F | 59.4°F | 58.8°F | 56.8°F |
| May 15 | 59.9°F | 58.8°F | 59.2°F | 58.8°F | 56.8°F |
| May 16 | 61.3°F | 59.2°F | 58.8°F | 58.5°F | 56.8°F |
| May 17 | 62.8°F | 60.6°F | 59.9°F | 58.6°F | 56.8°F |
| May 18 | 59.4°F | 58.6°F | 59.4°F | 58.8°F | 56.8°F |
| May 19 | 62.8°F | 59.9°F | 59°F | 58.5°F | 57°F |
| May 20 | 61.5°F | 59.9°F | 59.7°F | 58.8°F | 57°F |
| May 21 | 61.7°F | 59.4°F | 59.2°F | 58.6°F | 57°F |
| May 22 | 61.3°F | 59.7°F | 59.5°F | 58.8°F | 57°F |
| May 23 | 64°F | 60.8°F | 59.7°F | 58.8°F | 57°F |
| May 24 | 65.8°F | 62.2°F | 60.8°F | 59.2°F | 57.2°F |
| May 25 | 64.9°F | 62.2°F | 61.3°F | 59.7°F | 57.2°F |
| May 26 | 65.5°F | 62.4°F | 61.5°F | 59.9°F | 57.4°F |
| May 27 | 66.9°F | 63°F | 61.7°F | 60.1°F | 57.6°F |
| May 28 | 69.8°F | 65.3°F | 63.1°F | 60.6°F | 57.6°F |
| May 29 | 68°F | 65.1°F | 63.9°F | 61.3°F | 57.7°F |
| May 30 | 69.8°F | 65.7°F | 63.9°F | 61.5°F | 57.9°F |
| May 31 | 69.3°F | 66°F | 64.8°F | 62.1°F | 58.1°F |