Average Soil Temperature in Spokane, WA — September 2025
Data from Spokane 17 SSW (17.6 mi away) • 29 of 30 days reported
Monthly Summary by Depth
2" depth
65.9°F
avg
57.6°F – 77°F
29 days
4" depth
64.9°F
avg
58.3°F – 72.1°F
29 days
8" depth
64.6°F
avg
58.8°F – 70.3°F
29 days
20" depth
63.7°F
avg
59.5°F – 67.5°F
29 days
40" depth
63.8°F
avg
59.7°F – 67.1°F
29 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 75.9°F | 71.1°F | 69.4°F | 67.1°F | 66.4°F |
| Sep 2 | 77°F | 72.1°F | 70.3°F | 67.5°F | 66.9°F |
| Sep 3 | 75.6°F | 71.6°F | 70.2°F | 66.7°F | 67.1°F |
| Sep 4 | 74.5°F | 70.9°F | 69.6°F | 66.7°F | 67.1°F |
| Sep 5 | 73.2°F | 70.3°F | 69.3°F | 66.6°F | 66.9°F |
| Sep 6 | 70.7°F | 69.1°F | 68.4°F | 66.2°F | 66.7°F |
| Sep 7 | 72.1°F | 69.4°F | 68.4°F | 66.2°F | 66.4°F |
| Sep 8 | 71.6°F | 69.4°F | 68.4°F | 66.2°F | 66.4°F |
| Sep 9 | 71.4°F | 69.3°F | 68.2°F | 66.2°F | 66.2°F |
| Sep 10 | 69.8°F | 68.4°F | 67.6°F | 66.2°F | 66°F |
| Sep 11 | 71.4°F | 68.7°F | 67.8°F | 66.2°F | 65.8°F |
| Sep 12 | 70°F | 68.7°F | 68°F | 66.2°F | 66°F |
| Sep 13 | 66.2°F | 66.2°F | 66°F | 65.5°F | 65.5°F |
| Sep 14 | 63.5°F | 64.8°F | 64.9°F | 65.1°F | 64.9°F |
| Sep 15 | 62.1°F | 63.5°F | 63.5°F | 63.9°F | 64°F |
| Sep 16 | 61.2°F | 62.1°F | 62.2°F | 63°F | 63.1°F |
| Sep 17 | 63°F | 62.8°F | 62.8°F | 62.8°F | 62.8°F |
| Sep 18 | 63.1°F | 63°F | 63°F | 62.2°F | 62.6°F |
| Sep 19 | 63.5°F | 63°F | 63°F | 62.6°F | 62.6°F |
| Sep 20 | 63°F | 62.8°F | 63°F | 62.6°F | 62.4°F |
| Sep 21 | 60.3°F | 61.5°F | 62.1°F | 61.9°F | 62.2°F |
| Sep 22 | 57.6°F | 59.4°F | 60.3°F | 61.3°F | 61.3°F |
| Sep 24 | 59°F | 59.4°F | 59.5°F | 59.7°F | 60.4°F |
| Sep 25 | 59.5°F | 59.5°F | 59.9°F | 60.1°F | 60.3°F |
| Sep 26 | 58.1°F | 59°F | 59.7°F | 60.3°F | 60.3°F |
| Sep 27 | 57.9°F | 58.3°F | 58.8°F | 59.5°F | 59.7°F |
| Sep 28 | 60.4°F | 59.7°F | 59.9°F | 59.7°F | 59.7°F |
| Sep 29 | 59.2°F | 59.4°F | 59.7°F | 59.9°F | 59.7°F |
| Sep 30 | 60.6°F | 59.9°F | 60.1°F | 59.7°F | 59.7°F |