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Sweeny, TX Climate
1991 to 2020 normals at Angleton Brazoria AP, 15 mi from the center of Sweeny, elevation 25 ft.
Average weather by month
Select a month for daily normals and last year's weather
Frequently asked questions
- What is the hottest month in Sweeny, TX?
- August is the warmest month, with a normal high of 93°F at Angleton Brazoria AP.
- What is the coldest month in Sweeny, TX?
- January is the coldest month, with a normal low of 45°F.
- What is the wettest month in Sweeny, TX?
- September has the most precipitation on average, about 5.96 inches.