Weather in Brownsville in September
In an average September, Brownsville sees a daily high around 89°F and a low around 76°F, based on 1980–2026 of local climate records.
| Average high | 89°F |
|---|---|
| Typical high range | 85°F to 93°F |
| Average low | 76°F |
| Typical low range | 73°F to 79°F |
| Average daily precipitation | 0.20 in |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
104°F
2000-09-05
Lowest
70°F
1984-09-30
Low
Highest
84°F
2020-09-01
Lowest
57°F
1984-09-30
Feels-like
Highest
146°F
2000-09-04
Lowest
57°F
1984-09-30
Humidity
Highest
25.4 g/m³
2001-09-02
Lowest
8.7 g/m³
2000-09-26
Wind
Highest
37 mph
1988-09-16
Lowest
6 mph
2013-09-30
Gust
Highest
65 mph
1988-09-17
Lowest
13 mph
2010-09-30
Precip
Wettest
11.17 in
1984
Driest
1.38 in
2011
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