August weather in Mont Belvieu, TX
The average temperature in Mont Belvieu in August is 83.3°F (74.3°F–92.3°F). Average precipitation: 6.82 inches.
August is a summer month in Mont Belvieu, and is warmer than the annual average of 68.7°F. Daily temperatures swing about 18°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 5m. For travel, August is a wet month.
Avg High
92.3°F
Avg Low
74.3°F
Precipitation
6.82 in
Daylight
13h 5m
August records in Mont Belvieu
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.9°F (2023) | 69.1°F (1971) | 2.66 in (2000) |
| August 2 | 100.9°F (2023) | 68.0°F (1984) | 3.10 in (1953) |
| August 3 | 100.9°F (1985) | 69.1°F (1949) | 2.32 in (2025) |
| August 4 | 100.9°F (1951) | 70.0°F (1949) | 2.22 in (1946) |
| August 5 | 100.0°F (1951) | 69.1°F (1949) | 1.10 in (2017) |
| August 6 | 100.0°F (1999) | 69.1°F (1957) | 5.55 in (2008) |
| August 7 | 102.0°F (1962) | 60.1°F (1982) | 0.93 in (1966) |
| August 8 | 102.0°F (1962) | 55.0°F (1982) | 3.25 in (2017) |
| August 9 | 102.9°F (1962) | 62.1°F (1989) | 1.04 in (2003) |
| August 10 | 102.0°F (1962) | 62.1°F (1989) | 2.75 in (2018) |
| August 11 | 100.0°F (1962) | 64.0°F (1989) | 1.35 in (1996) |
| August 12 | 102.9°F (1962) | 63.0°F (1967) | 1.75 in (1960) |
| August 13 | 106.0°F (1962) | 61.0°F (1967) | 2.22 in (2002) |
| August 14 | 100.9°F (1951) | 64.9°F (2004) | 4.14 in (2016) |
| August 15 | 100.9°F (1999) | 63.0°F (2004) | 2.70 in (1962) |
| August 16 | 100.0°F (1951) | 63.0°F (2004) | 3.80 in (2002) |
| August 17 | 100.0°F (1951) | 61.0°F (1992) | 3.23 in (2007) |
| August 18 | 100.0°F (2023) | 63.0°F (1992) | 4.40 in (1983) |
| August 19 | 100.9°F (1986) | 64.0°F (1983) | 2.80 in (1951) |
| August 20 | 105.1°F (2023) | 63.0°F (1983) | 2.55 in (2019) |
| August 21 | 102.9°F (2023) | 64.0°F (1983) | 1.70 in (2008) |
| August 22 | 105.1°F (2023) | 63.0°F (1946) | 1.67 in (1960) |
| August 23 | 105.1°F (2023) | 62.1°F (1949) | 1.70 in (1996) |
| August 24 | 100.9°F (2023) | 64.9°F (1961) | 1.79 in (1960) |
| August 25 | 106.0°F (2023) | 63.0°F (1966) | 1.40 in (1948) |
| August 26 | 99.0°F (2023) | 63.0°F (1966) | 3.40 in (1959) |
| August 27 | 102.0°F (2023) | 63.0°F (1970) | 16.57 in (2017) |
| August 28 | 107.1°F (2023) | 63.0°F (2023) | 12.65 in (2017) |
| August 29 | 100.9°F (2011) | 63.0°F (1986) | 11.86 in (2017) |
| August 30 | 102.0°F (2011) | 63.0°F (1992) | 2.38 in (2017) |
| August 31 | 102.9°F (2000) | 57.9°F (2023) | 4.40 in (2003) |