Weather in Brownsville, Texas
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—91°76°
- SundayMay 17Thunderstorm—93°79°
- MondayMay 18Thunderstorm—94°79°
- TuesdayMay 19Thunderstorm14%93°77°
- WednesdayMay 20Thunderstorm36%93°78°
- ThursdayMay 21Thunderstorm36%87°77°
- FridayMay 22Light Drizzle37%92°76°
- PM 2.5
- 8.7 μg/m³
- PM 10
- 11.8 μg/m³
- NO₂
- 2.2 μg/m³
- Ozone
- 71.0 μg/m³
- UV Index
- 0.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 12:04 PM
- Moonset
- 1:28 AM
- In sign
- ♊︎ Gemini
Roses open on the Piedmont edge
Brownsville at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: January 22 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Peak growing season
As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| April | tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | — | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
August brings Brownsville's highest temperatures (~87°F mean) while January delivers the coldest (~63°F). September produces the most rainfall (5.7 inches) and February sees the least (1.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 63° | 1.1″ | 2 |
| February | 67° | 1.0″ | 2 |
| March | 71° | 1.4″ | 2 |
| April | 77° | 1.5″ | 2 |
| May | 82° | 2.2″ | 2 |
| June | 86° | 2.9″ | 4 |
| July | 86° | 2.0″ | 3 |
| August | 87° | 2.2″ | 4 |
| September | 83° | 5.7″ | 8 |
| October | 78° | 3.8″ | 5 |
| November | 71° | 1.8″ | 3 |
| December | 64° | 1.2″ | 3 |
Regional context
Brownsville falls within a humid subtropical climate region — sharing similar temperature ranges, seasonal patterns, and growing conditions with nearby cities.
Similar climates: Houston, TX, Dallas, TX, San Antonio, TX, Austin, TX, Fort Worth, TX.
Naturalist notes
Great Blue Herons begin nesting activities in February as winter temperatures moderate.
Live oak trees start their spring leaf flush in March as daylight hours increase.
Frequently asked
- When does it freeze in Brownsville?
- Brownsville's last spring frost typically falls around mid-February, and the first fall frost arrives around mid-December.
- What is the rainy season in Brownsville?
- September is the wettest month with about 5.7 inches of rain on average; the city receives roughly 27 inches annually.
- What is the warmest month in Brownsville?
- August is typically warmest, averaging about 87°F.
- What is the coldest month in Brownsville?
- January is typically coldest, averaging about 63°F.
- When can I start a vegetable garden in Brownsville?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-February); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Brownsville get?
- Brownsville averages about 39 rainy days per year.
- What hardiness zone is Brownsville?
- Brownsville's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Brownsville, Texas experiences a humid subtropical climate zone. January temperatures hover near 63°F while July averages 86°F — a 24°F seasonal swing.
Throughout the year, Brownsville receives about 27 inches of precipitation spread over roughly 39 rainy days.
Local weather patterns follow the city's latitude (26.0°N), proximity to large water bodies, and elevation — factors that determine what grows here, when frost occurs, and daily weather conditions.