Average Soil Temperature in Rapid City, SD for April 2026
Data from Sundance 8 NNW (66.4 mi away) • 30 of 30 days reported
Monthly Summary by Depth
2" depth
42.2°F
avg
37.6°F – 49.3°F
30 days
4" depth
41.2°F
avg
37.2°F – 47.8°F
30 days
8" depth
41.1°F
avg
37.9°F – 45.5°F
30 days
20" depth
40.2°F
avg
38.5°F – 42.6°F
30 days
40" depth
40.2°F
avg
39°F – 41.7°F
30 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Apr 1 | 40.1°F | 38.8°F | 39.6°F | 39.4°F | 39.2°F |
| Apr 2 | 41.4°F | 40.1°F | 39.9°F | 39.2°F | 39.2°F |
| Apr 3 | 39.2°F | 38.5°F | 39.6°F | 39.2°F | 39.2°F |
| Apr 4 | 37.6°F | 37.2°F | 38.5°F | 38.8°F | 39.2°F |
| Apr 5 | 38.8°F | 37.9°F | 37.9°F | 38.5°F | 39.2°F |
| Apr 6 | 40.5°F | 39°F | 39°F | 38.5°F | 39°F |
| Apr 7 | 41.4°F | 39.7°F | 39.2°F | 38.5°F | 39°F |
| Apr 8 | 41.7°F | 40.5°F | 40.3°F | 38.8°F | 39.2°F |
| Apr 9 | 41.5°F | 39.4°F | 39.7°F | 39°F | 39.2°F |
| Apr 10 | 41.9°F | 39.7°F | 39.7°F | 39°F | 39.2°F |
| Apr 11 | 45.1°F | 43.7°F | 41.5°F | 39.2°F | 39.2°F |
| Apr 12 | 46.6°F | 45.1°F | 43.2°F | 40.1°F | 39.4°F |
| Apr 13 | 46°F | 44.8°F | 43.7°F | 40.8°F | 39.7°F |
| Apr 14 | 43.3°F | 42.4°F | 42.6°F | 41°F | 40.1°F |
| Apr 15 | 44.1°F | 42.8°F | 42.3°F | 41°F | 40.5°F |
| Apr 16 | 45.7°F | 44.2°F | 43.2°F | 41.2°F | 40.6°F |
| Apr 17 | 41.9°F | 41.5°F | 42.4°F | 41.4°F | 40.8°F |
| Apr 18 | 39.4°F | 39.4°F | 40.6°F | 41°F | 41°F |
| Apr 19 | 40.6°F | 39.9°F | 40.1°F | 40.3°F | 40.8°F |
| Apr 20 | 44.6°F | 43.2°F | 41.5°F | 40.3°F | 40.6°F |
| Apr 21 | 47.8°F | 46°F | 43.5°F | 41°F | 40.6°F |
| Apr 22 | 49.3°F | 47.8°F | 45.5°F | 41.9°F | 41°F |
| Apr 23 | 44.1°F | 43.9°F | 44.6°F | 42.6°F | 41.4°F |
| Apr 24 | 41.4°F | 41.4°F | 42.4°F | 42.1°F | 41.7°F |
| Apr 25 | 39.4°F | 38.8°F | 40.6°F | 41.5°F | 41.7°F |
| Apr 26 | 39.9°F | 39.2°F | 40.1°F | 40.8°F | 41.5°F |
| Apr 27 | 39.2°F | 38.8°F | 39.9°F | 40.5°F | 41.4°F |
| Apr 28 | 41°F | 39.9°F | 39.7°F | 40.1°F | 41.2°F |
| Apr 29 | 42.1°F | 41°F | 40.6°F | 40.3°F | 41°F |
| Apr 30 | 41.7°F | 40.5°F | 40.6°F | 40.3°F | 40.8°F |