Average Soil Temperature in Spearfish, SD for May 2022
Data from Sundance 8 NNW (28.4 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
47.3°F
avg
38.3°F – 55.2°F
31 days
4" depth
46.1°F
avg
36.7°F – 52.5°F
31 days
8" depth
44.6°F
avg
35.1°F – 50.2°F
31 days
20" depth
41.8°F
avg
34.7°F – 47.1°F
31 days
40" depth
40.3°F
avg
35.1°F – 45.5°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| May 1 | 38.3°F | 36.7°F | 35.1°F | 34.7°F | 35.1°F |
| May 2 | 38.5°F | 38.3°F | 37°F | 35.2°F | 35.1°F |
| May 3 | 41°F | 39.4°F | 37.4°F | 35.8°F | 35.4°F |
| May 4 | 41.5°F | 40.8°F | 39.2°F | 36.5°F | 35.8°F |
| May 5 | 45°F | 42.6°F | 40.1°F | 37°F | 36°F |
| May 6 | 48.9°F | 45.9°F | 42.6°F | 38.1°F | 36.5°F |
| May 7 | 46.6°F | 45.7°F | 43.5°F | 39.2°F | 37°F |
| May 8 | 45.9°F | 44.4°F | 42.8°F | 39.7°F | 37.8°F |
| May 9 | 43.3°F | 43.5°F | 42.8°F | 40.1°F | 38.3°F |
| May 10 | 44.6°F | 43.2°F | 41.9°F | 40.1°F | 38.7°F |
| May 11 | 49.1°F | 46.8°F | 44.1°F | 40.5°F | 39°F |
| May 12 | 46.2°F | 46°F | 45°F | 41.4°F | 39.2°F |
| May 13 | 45.3°F | 44.4°F | 43.7°F | 41.7°F | 39.9°F |
| May 14 | 46.8°F | 45.3°F | 43.9°F | 41.7°F | 40.1°F |
| May 15 | 50.4°F | 48°F | 45.7°F | 42.1°F | 40.5°F |
| May 16 | 54°F | 50.7°F | 47.5°F | 42.8°F | 40.6°F |
| May 17 | 54.5°F | 52.3°F | 49.5°F | 43.9°F | 41.2°F |
| May 18 | 55.2°F | 52.5°F | 49.8°F | 44.8°F | 41.9°F |
| May 19 | 49.8°F | 50.2°F | 49.5°F | 45.5°F | 42.4°F |
| May 20 | 42.4°F | 44.2°F | 45.9°F | 45.1°F | 43°F |
| May 21 | 40.1°F | 41.4°F | 43°F | 44.1°F | 43°F |
| May 22 | 44.1°F | 42.8°F | 42.4°F | 43°F | 42.8°F |
| May 23 | 45.5°F | 44.8°F | 44.2°F | 42.8°F | 42.4°F |
| May 24 | 45.5°F | 44.4°F | 43.9°F | 43°F | 42.4°F |
| May 25 | 49.8°F | 47.5°F | 45.5°F | 43°F | 42.4°F |
| May 26 | 53.6°F | 50.7°F | 47.8°F | 43.7°F | 42.4°F |
| May 27 | 54.9°F | 52.5°F | 49.6°F | 44.8°F | 42.8°F |
| May 28 | 53.4°F | 52.3°F | 50.2°F | 45.9°F | 43.3°F |
| May 29 | 53.8°F | 52.2°F | 50.2°F | 46.2°F | 43.7°F |
| May 30 | 50.2°F | 50.2°F | 50°F | 46.9°F | 44.6°F |
| May 31 | 48°F | 48°F | 48.2°F | 47.1°F | 45.5°F |