Castroville, Sunday, 9 August, 10:24
Clear. Feels like 95°. High 97°, low 76°.
In September, Castroville, TX averages a high of 89° and a low of 71.5°. About 3.1 inches of precipitation fall over the month (9 wet days). The record high is 108.7° (2000) and the record low 50.9° (1967). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 92.7° | 74.7° | 25% | 102.6° (2000) | 69.8° (1987) |
| 2 | 92.7° | 74.7° | 32% | 103.8° (2000) | 66.6° (1987) |
| 3 | 91.9° | 74.5° | 37% | 103.8° (2000) | 64.6° (1974) |
| 4 | 91.8° | 74.5° | 32% | 106.5° (2000) | 61.5° (1974) |
| 5 | 91.9° | 73.9° | 32% | 108.7° (2000) | 58.3° (1974) |
| 6 | 91.2° | 73.6° | 27% | 102.4° (2000) | 57.2° (1974) |
| 7 | 90.1° | 73° | 32% | 100.9° (2012) | 60.1° (1974) |
| 8 | 90° | 73° | 33% | 101.5° (2023) | 64° (2017) |
| 9 | 90.1° | 72.9° | 33% | 99.7° (1997) | 64° (2024) |
| 10 | 89.6° | 72.7° | 38% | 100.6° (1965) | 61.9° (2020) |
| 11 | 89.1° | 72.5° | 33% | 99.5° (2000) | 62.1° (1968) |
| 12 | 89.6° | 72.5° | 30% | 100.6° (2011) | 61.5° (1968) |
| 13 | 89.1° | 72.7° | 32% | 101.1° (2011) | 66.4° (1969) |
| 14 | 88.9° | 72.5° | 37% | 100.8° (2017) | 64.2° (1961) |
| 15 | 88.5° | 72.1° | 35% | 99.1° (1965) | 62.8° (1961) |
| 16 | 88.7° | 72.1° | 33% | 99.7° (1965) | 62.8° (1989) |
| 17 | 89.1° | 72° | 27% | 99.1° (2005) | 62.1° (1961) |
| 18 | 89.4° | 72° | 32% | 98.2° (2005) | 57.4° (1968) |
| 19 | 88.7° | 71.8° | 32% | 99.1° (2019) | 54° (1981) |
| 20 | 88.3° | 71.1° | 32% | 100° (2021) | 56.8° (1971) |
| 21 | 87.6° | 71.1° | 32% | 98.1° (2005) | 58.5° (1983) |
| 22 | 87.3° | 70° | 27% | 99.3° (2005) | 53.1° (1983) |
| 23 | 86.9° | 69.4° | 27% | 99.5° (2023) | 54.5° (1995) |
| 24 | 87.4° | 69.4° | 22% | 101.8° (2005) | 57.7° (1983) |
| 25 | 87.6° | 68.7° | 22% | 105.1° (2005) | 56.3° (2000) |
| 26 | 87.1° | 68.4° | 28% | 103.5° (2005) | 54.9° (2000) |
| 27 | 86.9° | 68.2° | 18% | 101.3° (2005) | 55.2° (2001) |
| 28 | 86.5° | 68° | 20% | 102.7° (2005) | 52.9° (1967) |
| 29 | 85.8° | 66.4° | 22% | 95.7° (2011) | 50.9° (1967) |
| 30 | 85.8° | 65.7° | 17% | 96.8° (1977) | 52.7° (1984) |