Average Soil Temperature in Mcallen, TX for May 2026
Data from Weslaco (17.6 mi away) • 28 of 31 days reported
Monthly Summary by Depth
2" depth
81.6°F
avg
75.7°F – 85.1°F
28 days
4" depth
82.7°F
avg
77.4°F – 85.5°F
28 days
8" depth
83°F
avg
78.8°F – 85.5°F
28 days
20" depth
81.9°F
avg
79.7°F – 83.8°F
28 days
40" depth
80.6°F
avg
79.3°F – 81.9°F
28 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| May 1 | 79.5°F | 81.3°F | 82.6°F | 81.7°F | 79.3°F |
| May 2 | 75.7°F | 77.4°F | 78.8°F | 80.6°F | 79.5°F |
| May 3 | 78.1°F | 79.5°F | 80.2°F | 79.9°F | 79.5°F |
| May 4 | 78.8°F | 79.9°F | 80.1°F | 79.7°F | 79.3°F |
| May 5 | 82.6°F | 83.1°F | 82.4°F | 80.1°F | 79.3°F |
| May 6 | 85.1°F | 85.5°F | 84.4°F | 81°F | 79.3°F |
| May 7 | 81.1°F | 82°F | 82.4°F | 81.7°F | 79.5°F |
| May 8 | 81.7°F | 82.8°F | 82.9°F | 81.5°F | 79.9°F |
| May 9 | 81°F | 82.2°F | 82.6°F | 81.5°F | 79.9°F |
| May 10 | 82.6°F | 83.5°F | 83.3°F | 81.7°F | 80.1°F |
| May 11 | 79.5°F | 81.1°F | 82.2°F | 81.7°F | 80.1°F |
| May 12 | 80.1°F | 81.5°F | 82.4°F | 81.5°F | 80.1°F |
| May 13 | 81°F | 82.4°F | 83.1°F | 81.7°F | 80.2°F |
| May 14 | 81.7°F | 82.9°F | 83.5°F | 81.9°F | 80.2°F |
| May 15 | 82.2°F | 83.3°F | 83.8°F | 82°F | 80.4°F |
| May 16 | 83.7°F | 84.6°F | 84.6°F | 82.4°F | 80.6°F |
| May 20 | 84.2°F | 85.3°F | 85.5°F | 83.8°F | 81.7°F |
| May 21 | 81.1°F | 82.4°F | 83.1°F | 83.3°F | 81.9°F |
| May 22 | 82.8°F | 83.7°F | 83.7°F | 82.9°F | 81.9°F |
| May 23 | 80.8°F | 81.7°F | 82°F | 82.4°F | 81.7°F |
| May 24 | 82.6°F | 83.7°F | 83.8°F | 82.6°F | 81.5°F |
| May 25 | 83.7°F | 84.6°F | 84.6°F | 82.9°F | 81.5°F |
| May 26 | 82.9°F | 83.7°F | 83.7°F | 83.1°F | 81.7°F |
| May 27 | 78.3°F | 79.5°F | 80.6°F | 82.4°F | 81.7°F |
| May 28 | 82.6°F | 83.3°F | 82.9°F | 81.9°F | 81.5°F |
| May 29 | 83.7°F | 84.6°F | 84.2°F | 82.4°F | 81.5°F |
| May 30 | 84°F | 84.9°F | 84.9°F | 82.9°F | 81.5°F |
| May 31 | 84.6°F | 85.3°F | 85.1°F | 83.3°F | 81.7°F |