Falcon Heights, TX frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 2 a year). Cover tender plants when frost is forecast.
How Falcon Heights compares
- In a typical year, frost nights in Falcon Heights fall between January 1 and January 9. In 1 year in 10 the first frost comes as early as December 8, or the last frost as late as February 21.
- Compared with Mission, TX, 86 km away, the last frost here is 14 days earlier than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 17 |
| 50% (median) | January 9 |
| 10% (safe for tender plants) | February 21 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 8 |
| 50% (median) | January 1 |
| 90% (late) | February 4 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Falcon Heights, TX only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Falcon Dam, TX weather station, about 1 km away (elevation 322 ft (98 m)).
Frost dates near Falcon Heights
- Salineno Jan 9 · Jan 1
- Lopeno Jan 9 · Jan 1
- Roma Jan 31 · Dec 17
- Rio Grande City Jan 31 · Dec 17
- Zapata Jan 19 · Dec 22
- Guerra Jan 19 · Dec 22
- Garciasville Jan 31 · Dec 17
- Grulla Jan 31 · Dec 17
- San Ygnacio Jan 19 · Dec 22
- Santa Elena Jan 23 · Dec 28
Frequently asked questions
When is the last frost in Falcon Heights, TX?
The median last spring frost in Falcon Heights, TX is January 9. There is still about a 10% chance of frost after February 21, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Falcon Heights, TX?
The median first fall frost is January 1, with about a 10% chance of frost before December 8.
How long is the growing season in Falcon Heights, TX?
About 357 days between the median last spring frost and first fall frost.
What planting zone is Falcon Heights, TX?
Falcon Heights, TX is in USDA hardiness zone 9b.