Average Soil Temperature in Castaic, CA for August 2026
Data from Stubblefield (58.9 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
85.2°F
avg
77.7°F – 91.6°F
31 days
4" depth
89.6°F
avg
82.9°F – 94.5°F
31 days
8" depth
89.7°F
avg
84.7°F – 93.2°F
31 days
20" depth
84.6°F
avg
82.2°F – 86.4°F
31 days
40" depth
78.6°F
avg
78.6°F – 78.6°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Aug 1 | 86.2°F | 90.9°F | 90.5°F | 84.2°F | 78.6°F |
| Aug 2 | 88°F | 91.9°F | 91.2°F | 84.4°F | 78.6°F |
| Aug 3 | 88.5°F | 92.7°F | 91.8°F | 84.7°F | 78.6°F |
| Aug 4 | 89.1°F | 92.8°F | 92.1°F | 84.9°F | 78.6°F |
| Aug 5 | 89.1°F | 93°F | 92.1°F | 85.3°F | 78.6°F |
| Aug 6 | 88.5°F | 92.8°F | 92.1°F | 85.5°F | 78.6°F |
| Aug 7 | 89.8°F | 92.8°F | 92.1°F | 85.5°F | 78.6°F |
| Aug 8 | 89.1°F | 93.2°F | 92.5°F | 85.6°F | 78.6°F |
| Aug 9 | 91.6°F | 94.3°F | 93°F | 86°F | 78.6°F |
| Aug 10 | 90.9°F | 94.5°F | 93.2°F | 86.2°F | 78.6°F |
| Aug 11 | 88.5°F | 92.3°F | 92.1°F | 86.4°F | 78.6°F |
| Aug 12 | 87.3°F | 91.8°F | 91.6°F | 86.2°F | 78.6°F |
| Aug 13 | 84°F | 90°F | 90.9°F | 86°F | 78.6°F |
| Aug 14 | 82.9°F | 88.3°F | 89.6°F | 85.5°F | 78.6°F |
| Aug 15 | 82.4°F | 87.8°F | 88.9°F | 84.9°F | 78.6°F |
| Aug 16 | 82.9°F | 87.8°F | 88.5°F | 84.4°F | 78.6°F |
| Aug 17 | 83.5°F | 88.3°F | 88.7°F | 84.2°F | 78.6°F |
| Aug 18 | 83.5°F | 88.2°F | 88.7°F | 84.2°F | 78.6°F |
| Aug 19 | 85.6°F | 89.2°F | 89.2°F | 84.2°F | 78.6°F |
| Aug 20 | 86.2°F | 90°F | 89.6°F | 84.2°F | 78.6°F |
| Aug 21 | 85.1°F | 89.2°F | 89.2°F | 84.4°F | 78.6°F |
| Aug 22 | 82.9°F | 88.2°F | 88.9°F | 84.2°F | 78.6°F |
| Aug 23 | 85.1°F | 88.9°F | 88.7°F | 84°F | 78.6°F |
| Aug 24 | 86.2°F | 90°F | 89.4°F | 84.2°F | 78.6°F |
| Aug 25 | 84°F | 88.7°F | 89.1°F | 84.2°F | 78.6°F |
| Aug 26 | 84°F | 88.3°F | 88.7°F | 84.2°F | 78.6°F |
| Aug 27 | 78.6°F | 82.9°F | 84.7°F | 83.7°F | 78.6°F |
| Aug 28 | 80.4°F | 84.9°F | 85.6°F | 82.9°F | 78.6°F |
| Aug 29 | 80.1°F | 84.7°F | 85.6°F | 82.6°F | 78.6°F |
| Aug 30 | 79.5°F | 84.7°F | 85.6°F | 82.4°F | 78.6°F |
| Aug 31 | 77.7°F | 84°F | 85.5°F | 82.2°F | 78.6°F |