Average Soil Temperature in Boone, IA for September 2026
Data from Ames (8.3 mi away) • 27 of 30 days reported
Monthly Summary by Depth
2" depth
66.5°F
avg
61.9°F – 71.8°F
27 days
4" depth
66.8°F
avg
62.8°F – 71.6°F
27 days
8" depth
65.9°F
avg
62.8°F – 69.8°F
27 days
20" depth
64.4°F
avg
62.4°F – 66.4°F
27 days
40" depth
62.6°F
avg
61.3°F – 63.5°F
27 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 70.9°F | 70.2°F | 67.8°F | 64.6°F | 62.1°F |
| Sep 2 | 71.1°F | 70.7°F | 68.4°F | 64.9°F | 62.2°F |
| Sep 3 | 71.1°F | 70.7°F | 68.5°F | 65.3°F | 62.4°F |
| Sep 4 | 71.8°F | 71.4°F | 68.9°F | 65.5°F | 62.6°F |
| Sep 8 | 70.9°F | 70.9°F | 69.3°F | 66.2°F | 63.1°F |
| Sep 9 | 70.9°F | 71.6°F | 69.8°F | 66.4°F | 63.3°F |
| Sep 10 | 69.3°F | 70.5°F | 69.1°F | 66.4°F | 63.5°F |
| Sep 11 | 69.3°F | 69.8°F | 68.5°F | 66.2°F | 63.5°F |
| Sep 12 | 67.3°F | 68.5°F | 68°F | 66°F | 63.5°F |
| Sep 13 | 65.3°F | 66.2°F | 66.4°F | 65.7°F | 63.5°F |
| Sep 14 | 65.5°F | 65.5°F | 65.3°F | 65.1°F | 63.3°F |
| Sep 15 | 65.3°F | 66°F | 65.7°F | 64.8°F | 63.3°F |
| Sep 16 | 65.5°F | 65.7°F | 65.1°F | 64.6°F | 63°F |
| Sep 17 | 67.8°F | 67.8°F | 66°F | 64.4°F | 63°F |
| Sep 18 | 67.5°F | 67.3°F | 66.2°F | 64.4°F | 62.8°F |
| Sep 19 | 68.2°F | 68.4°F | 66.9°F | 64.6°F | 62.8°F |
| Sep 20 | 65.5°F | 66.2°F | 66.2°F | 64.6°F | 62.8°F |
| Sep 21 | 63.1°F | 64.2°F | 64.8°F | 64.4°F | 62.8°F |
| Sep 22 | 62.1°F | 63°F | 63.7°F | 64°F | 62.6°F |
| Sep 23 | 61.9°F | 63.1°F | 63.1°F | 63.5°F | 62.6°F |
| Sep 24 | 62.6°F | 63°F | 63°F | 63.1°F | 62.2°F |
| Sep 25 | 62.6°F | 62.8°F | 62.8°F | 62.8°F | 62.1°F |
| Sep 26 | 62.6°F | 63°F | 62.8°F | 62.6°F | 61.9°F |
| Sep 27 | 63°F | 63.1°F | 62.8°F | 62.4°F | 61.7°F |
| Sep 28 | 63.7°F | 64.2°F | 63.3°F | 62.4°F | 61.5°F |
| Sep 29 | 63.7°F | 63.7°F | 63°F | 62.4°F | 61.5°F |
| Sep 30 | 65.7°F | 65.3°F | 63.9°F | 62.4°F | 61.3°F |