Average Soil Temperature in Sumner, WA for May 2026
Data from Quinault 4 NE (85.2 mi away) • 28 of 31 days reported
Monthly Summary by Depth
2" depth
59.5°F
avg
54.1°F – 62.6°F
28 days
4" depth
58.8°F
avg
54°F – 61.7°F
28 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| May 1 | 57.9°F | 57°F |
| May 2 | 59.7°F | 58.6°F |
| May 3 | 61°F | 59.7°F |
| May 4 | 60.8°F | 60.1°F |
| May 5 | 60.6°F | 59.9°F |
| May 6 | 59°F | 58.6°F |
| May 7 | 59.9°F | 59°F |
| May 8 | 59.4°F | 58.8°F |
| May 9 | 60.1°F | 59.4°F |
| May 10 | 59.7°F | 59°F |
| May 11 | 60.8°F | 59.9°F |
| May 12 | 61.9°F | 60.8°F |
| May 13 | 60.1°F | 59.7°F |
| May 14 | 57.9°F | 57.7°F |
| May 15 | 54.5°F | 54.9°F |
| May 16 | 54.1°F | 54°F |
| May 17 | 55.2°F | 54.9°F |
| May 18 | 57.4°F | 56.7°F |
| May 19 | 58.3°F | 57.7°F |
| May 20 | 59.9°F | 59°F |
| May 21 | 60.3°F | 59.4°F |
| May 22 | 61.2°F | 60.4°F |
| May 23 | 61.9°F | 61.2°F |
| May 24 | 61.7°F | 61°F |
| May 25 | 59.7°F | 59.5°F |
| May 26 | 59°F | 58.5°F |
| May 27 | 60.6°F | 59.7°F |
| May 28 | 62.6°F | 61.7°F |