Average Soil Temperature in Chesterfield, MO for September 2025
Data from Shaw Nature Reserve (14.8 mi away) • 30 of 30 days reported
Monthly Summary by Depth
2" depth
73.5°F
avg
68.2°F – 79.2°F
30 days
4" depth
74.3°F
avg
69.8°F – 79.3°F
30 days
8" depth
75.3°F
avg
72°F – 79.2°F
30 days
20" depth
74°F
avg
71.8°F – 75.7°F
30 days
40" depth
71.9°F
avg
70.7°F – 73°F
30 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 75.9°F | 76.6°F | 77°F | 75.6°F | 73°F |
| Sep 2 | 72.3°F | 73.8°F | 75.4°F | 75.4°F | 73°F |
| Sep 3 | 76.5°F | 76.6°F | 76.8°F | 74.8°F | 73°F |
| Sep 4 | 71.4°F | 73.2°F | 75.2°F | 75°F | 72.7°F |
| Sep 5 | 69.6°F | 70.9°F | 72.7°F | 74.1°F | 72.7°F |
| Sep 6 | 70.3°F | 71.6°F | 73.2°F | 73.4°F | 72.3°F |
| Sep 7 | 68.2°F | 70°F | 72.3°F | 72.9°F | 72.3°F |
| Sep 8 | 68.2°F | 69.8°F | 72°F | 72.3°F | 71.8°F |
| Sep 9 | 71.1°F | 71.8°F | 72.7°F | 72.1°F | 71.4°F |
| Sep 10 | 73.9°F | 74.7°F | 74.8°F | 72.5°F | 71.1°F |
| Sep 11 | 75.6°F | 75.7°F | 75.9°F | 73.2°F | 71.1°F |
| Sep 12 | 77.2°F | 77.4°F | 77.2°F | 73.8°F | 71.1°F |
| Sep 13 | 78.1°F | 78.4°F | 78.3°F | 74.5°F | 71.4°F |
| Sep 14 | 79.2°F | 79.3°F | 79°F | 75°F | 71.4°F |
| Sep 15 | 78.6°F | 79.2°F | 79.2°F | 75.6°F | 71.8°F |
| Sep 16 | 76.8°F | 77.7°F | 78.6°F | 75.7°F | 71.8°F |
| Sep 17 | 76.5°F | 77.2°F | 78.1°F | 75.6°F | 72.3°F |
| Sep 18 | 77.2°F | 77.7°F | 77.9°F | 75.4°F | 72.3°F |
| Sep 19 | 76.8°F | 77.2°F | 77.5°F | 75.4°F | 72.3°F |
| Sep 20 | 76.5°F | 77.2°F | 77.7°F | 75.4°F | 72.3°F |
| Sep 21 | 75.9°F | 76.5°F | 76.8°F | 75.2°F | 72.3°F |
| Sep 22 | 73.9°F | 74.8°F | 75.9°F | 75°F | 72.3°F |
| Sep 23 | 73.4°F | 73.8°F | 74.3°F | 74.3°F | 72.3°F |
| Sep 24 | 72.3°F | 73°F | 73.8°F | 73.8°F | 71.8°F |
| Sep 25 | 70°F | 71.4°F | 73.4°F | 73.4°F | 71.8°F |
| Sep 26 | 69.3°F | 70.5°F | 72.5°F | 72.7°F | 71.4°F |
| Sep 27 | 69.3°F | 70.5°F | 72.1°F | 72.1°F | 71.4°F |
| Sep 28 | 70°F | 70.9°F | 72.3°F | 72°F | 71.1°F |
| Sep 29 | 70.3°F | 71.2°F | 72.3°F | 71.8°F | 70.7°F |
| Sep 30 | 71.1°F | 71.8°F | 72.9°F | 71.8°F | 70.7°F |