Average Soil Temperature in San Jose, CA — October 2025
Data from Merced 23 WSW (56.3 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
64.4°F
avg
57.4°F – 73.8°F
31 days
4" depth
65.5°F
avg
59.5°F – 73.4°F
31 days
8" depth
67.1°F
avg
62.1°F – 72.9°F
31 days
20" depth
66.3°F
avg
62.2°F – 72.5°F
25 days
40" depth
67.6°F
avg
63°F – 72.5°F
30 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Oct 1 | 73.8°F | 73.4°F | 72.9°F | 72.5°F | 72.5°F |
| Oct 2 | 73°F | 72.9°F | 72.9°F | — | — |
| Oct 3 | 70.3°F | 71.1°F | 72.1°F | — | 72.1°F |
| Oct 4 | 69.6°F | 70.2°F | 71.4°F | — | 71.6°F |
| Oct 5 | 69.1°F | 69.8°F | 70.9°F | 70.9°F | 71.2°F |
| Oct 6 | 69.6°F | 69.8°F | 70.7°F | — | 70.9°F |
| Oct 7 | 69.8°F | 69.8°F | 70.5°F | 70.3°F | 70.7°F |
| Oct 8 | 70°F | 70.2°F | 70.5°F | — | 70.7°F |
| Oct 9 | 68.9°F | 69.4°F | 70.3°F | 70.2°F | 70.5°F |
| Oct 10 | 68.2°F | 68.9°F | 70°F | 69.8°F | 70.3°F |
| Oct 11 | 67.1°F | 68°F | 69.6°F | 69.6°F | 70°F |
| Oct 12 | 65.7°F | 66.9°F | 69.1°F | 68.9°F | 69.6°F |
| Oct 13 | 66.4°F | 67.3°F | 68.7°F | — | 69.3°F |
| Oct 14 | 62.2°F | 64.8°F | 67.6°F | 68°F | 68.5°F |
| Oct 15 | 63.3°F | 64.8°F | 66.9°F | 67.1°F | 68°F |
| Oct 16 | 61.2°F | 63.1°F | 66.2°F | 66.6°F | 67.5°F |
| Oct 17 | 61.2°F | 63°F | 65.3°F | 65.7°F | 66.6°F |
| Oct 18 | 62.1°F | 63.3°F | 65.1°F | 65.5°F | 66.2°F |
| Oct 19 | 62.8°F | 63.9°F | 65.3°F | 65.5°F | 66.2°F |
| Oct 20 | 62.2°F | 63.5°F | 65.3°F | 65.5°F | 66.2°F |
| Oct 21 | 61.9°F | 63°F | 64.9°F | 65.1°F | 65.8°F |
| Oct 22 | 62.8°F | 63.7°F | 65.1°F | 65.1°F | 65.8°F |
| Oct 23 | 61°F | 62.4°F | 64.6°F | 64.8°F | 65.5°F |
| Oct 24 | 60.8°F | 62.1°F | 64.2°F | 64.4°F | 65.1°F |
| Oct 25 | 60.3°F | 61.9°F | 63.9°F | 64.2°F | 64.9°F |
| Oct 26 | 61°F | 62.2°F | 63.7°F | 64°F | 64.6°F |
| Oct 27 | 59.2°F | 61°F | 63.5°F | 63.7°F | 64.6°F |
| Oct 28 | 57.4°F | 59.5°F | 62.6°F | 63.1°F | 64°F |
| Oct 29 | 57.7°F | 59.5°F | 62.1°F | 62.4°F | 63.3°F |
| Oct 30 | 58.3°F | 59.9°F | 62.1°F | 62.2°F | 63.1°F |
| Oct 31 | 58.5°F | 59.9°F | 62.1°F | 62.2°F | 63°F |