Weather in Alamo Heights, Texas
Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—89°69°
- SundayMay 17Thunderstorm13%91°74°
- MondayMay 18Thunderstorm10%93°75°
- TuesdayMay 19Thunderstorm56%92°76°
- WednesdayMay 20Showers56%78°69°
- ThursdayMay 21Thunderstorm71%84°68°
- FridayMay 22Drizzle65%89°68°
- PM 2.5
- 8.0 μg/m³
- PM 10
- 11.7 μg/m³
- NO₂
- 3.0 μg/m³
- Ozone
- 72.0 μg/m³
- UV Index
- 0.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 11:58 AM
- Moonset
- 1:42 AM
- In sign
- ♊︎ Gemini
Roses open on the Piedmont edge
Alamo Heights at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: February 12 (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
Alamo Heights's warmest month is August (~85°F mean) and its coldest is January (~52°F). Rainfall peaks in May (4.4 inches) and bottoms out in February (1.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 52° | 2.2″ | 4 |
| February | 56° | 1.9″ | 3 |
| March | 62° | 2.4″ | 4 |
| April | 69° | 2.3″ | 3 |
| May | 76° | 4.4″ | 4 |
| June | 82° | 3.5″ | 4 |
| July | 84° | 2.4″ | 4 |
| August | 85° | 2.4″ | 3 |
| September | 79° | 3.9″ | 5 |
| October | 71° | 3.9″ | 5 |
| November | 60° | 2.5″ | 3 |
| December | 53° | 2.1″ | 4 |
Regional context
Alamo Heights sits within a humid subtropical climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Houston, TX, Dallas, TX, San Antonio, TX, Austin, TX, Fort Worth, TX.
Frequently asked
- When does it freeze in Alamo Heights?
- Alamo Heights's last spring frost typically falls around mid-February, and the first fall frost arrives around mid-December.
- What is the rainy season in Alamo Heights?
- May is the wettest month with about 4.4 inches of rain on average; the city receives roughly 34 inches annually.
- What is the warmest month in Alamo Heights?
- August is typically warmest, averaging about 85°F.
- What is the coldest month in Alamo Heights?
- January is typically coldest, averaging about 52°F.
- When can I start a vegetable garden in Alamo Heights?
- 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 Alamo Heights get?
- Alamo Heights averages about 47 rainy days per year.
- What hardiness zone is Alamo Heights?
- Alamo Heights'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
Alamo Heights, Texas sits in a humid subtropical climate zone. January means hover near 52°F while July averages 84°F — a 32°F seasonal swing.
Across the year, Alamo Heights receives about 34 inches of precipitation spread over roughly 47 rainy days.
The rhythm of the year is set by latitude (29.5°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.