September weather in Sweeny, TX
The average temperature in Sweeny in September is °F (°F–°F). Average precipitation: 5.60 inches.
September is a fall month in Sweeny, and is cooler than the annual average of 0°F. Daylight averages about 12h 10m.
Avg High
°F
Avg Low
°F
Precipitation
5.60 in
Daylight
12h 10m
September records in Sweeny
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | — | — | 2.30 in (2025) |
| September 2 | — | — | 1.98 in (2015) |
| September 3 | — | — | 0.57 in (2024) |
| September 4 | — | — | 2.70 in (2024) |
| September 5 | — | — | 2.48 in (2018) |
| September 6 | — | — | 0.09 in (2024) |
| September 7 | — | — | 1.09 in (2020) |
| September 8 | — | — | 0.91 in (2013) |
| September 9 | — | — | 0.37 in (2020) |
| September 10 | — | — | 0.86 in (2018) |
| September 11 | — | — | 1.67 in (2018) |
| September 12 | — | — | 0.95 in (2018) |
| September 13 | — | — | 1.32 in (2018) |
| September 14 | — | — | 3.60 in (2021) |
| September 15 | — | — | 0.96 in (2025) |
| September 16 | — | — | 2.30 in (2023) |
| September 17 | — | — | 2.00 in (2014) |
| September 18 | — | — | 4.25 in (2019) |
| September 19 | — | — | 0.90 in (2014) |
| September 20 | — | — | 1.09 in (2019) |
| September 21 | — | — | 1.96 in (2013) |
| September 22 | — | — | 3.60 in (2020) |
| September 23 | — | — | 0.39 in (2020) |
| September 24 | — | — | 0.83 in (2025) |
| September 25 | — | — | 2.38 in (2025) |
| September 26 | — | — | 2.97 in (2016) |
| September 27 | — | — | 0.52 in (2018) |
| September 28 | — | — | 0.41 in (2013) |
| September 29 | — | — | 1.80 in (2021) |
| September 30 | — | — | 0.62 in (2012) |