Average Soil Temperature in Sammamish, WA for October 2026
Data from Darrington 21 NNE (68.9 mi away) • 25 of 31 days reported
Monthly Summary by Depth
2" depth
50.8°F
avg
45.1°F – 57°F
25 days
4" depth
51°F
avg
45.5°F – 56.8°F
25 days
8" depth
53.6°F
avg
49.5°F – 57.2°F
25 days
20" depth
52.8°F
avg
48.6°F – 56.3°F
25 days
40" depth
53°F
avg
48.9°F – 55.8°F
25 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Oct 1 | 55.2°F | 55.2°F | 56.3°F | 55.4°F | 55.2°F |
| Oct 2 | 57°F | 56.8°F | 56.8°F | 55.9°F | 55.6°F |
| Oct 3 | 56.1°F | 56.1°F | 57.2°F | 56.3°F | 55.8°F |
| Oct 4 | 54.9°F | 54.9°F | 56.8°F | 55.9°F | 55.8°F |
| Oct 5 | 54.3°F | 54.3°F | 56.5°F | 55.6°F | 55.6°F |
| Oct 6 | 54.7°F | 54.7°F | 56.3°F | 55.4°F | 55.4°F |
| Oct 7 | 54.7°F | 54.7°F | 56.3°F | 55.4°F | 55.4°F |
| Oct 8 | 53.1°F | 53.2°F | 55.9°F | 55°F | 55°F |
| Oct 9 | 54°F | 54°F | 55.8°F | 54.9°F | 54.9°F |
| Oct 10 | 52.7°F | 53.1°F | 55.4°F | 54.7°F | 54.7°F |
| Oct 11 | 49.8°F | 50.5°F | 54.3°F | 53.8°F | 54.1°F |
| Oct 12 | 48°F | 48.7°F | 53.1°F | 52.7°F | 53.2°F |
| Oct 13 | 49.8°F | 50°F | 52.7°F | 52°F | 52.3°F |
| Oct 14 | 52.3°F | 52.2°F | 53.4°F | 52.5°F | 52.5°F |
| Oct 15 | 50.4°F | 50.7°F | 53.4°F | 52.5°F | 52.7°F |
| Oct 16 | 49.6°F | 49.8°F | 52.9°F | 52.2°F | 52.3°F |
| Oct 17 | 50.5°F | 50.5°F | 52.9°F | 52°F | 52.2°F |
| Oct 18 | 47.7°F | 48.2°F | 52.2°F | 51.6°F | 51.8°F |
| Oct 19 | 47.8°F | 48°F | 51.4°F | 50.7°F | 51.3°F |
| Oct 20 | 46.6°F | 46.9°F | 50.9°F | 50.2°F | 50.7°F |
| Oct 21 | 46.4°F | 46.6°F | 50.4°F | 49.6°F | 50.2°F |
| Oct 22 | 46.4°F | 46.6°F | 50.2°F | 49.3°F | 49.8°F |
| Oct 23 | 46.8°F | 46.9°F | 50.2°F | 49.3°F | 49.5°F |
| Oct 24 | 45.1°F | 45.5°F | 49.5°F | 48.7°F | 49.3°F |
| Oct 25 | 46.9°F | 46.9°F | 49.5°F | 48.6°F | 48.9°F |