Frost Dates: First and last frost dates for Houston Bush, TX
ℹ️ How to read these charts for the spring
As spring unfolds, the risk of frost gradually decreases each day until your tender plants are finally safe. The probabilities shown in the chart help you make smart decisions about when to plant.
While frost typically forms at 32°F, tender plants can be damaged even when temperatures are slightly higher. Air temperatures are often measured several feet above the ground, but temperatures at plant level can be several degrees colder. Protected areas like porches help by blocking radiational cooling. Given these variables, we consider 36°F the "caution zone" for frost-sensitive plants.
Key dates for your spring planting:
- By April 1, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
- Around March 12, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
- Before February 26, there's still an 80% risk of frost — too early for tomatoes and other tender plants unless you're prepared to protect them
If the 10-day forecast shows no temperatures below 40°F, you might safely plant earlier than the above dates suggest. Many gardeners watch for this weather window to get a head start on the growing season.
| Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| Last 16° | Dec 27 | -- | -- | -- | -- | -- | -- | -- | -- |
| Last 20° | Jan 22 | Jan 12 | Dec 31 | -- | -- | -- | -- | -- | -- |
| Last 24° | Feb 14 | Feb 3 | Jan 25 | Jan 17 | Jan 8 | Dec 26 | -- | -- | -- |
| Last 28° | Mar 10 | Feb 25 | Feb 16 | Feb 8 | Jan 31 | Jan 24 | Jan 16 | Jan 6 | Dec 22 |
| Last 32° | Mar 30 | Mar 20 | Mar 13 | Mar 7 | Mar 1 | Feb 23 | Feb 17 | Feb 10 | Jan 31 |
| Last 36° | Apr 1 | Mar 25 | Mar 20 | Mar 16 | Mar 12 | Mar 8 | Mar 3 | Feb 26 | Feb 19 |
ℹ️ How to read these charts for the fall
As summer ends in Houston Bush, TX, nighttime temperatures begin to drop, and your risk of frost increases with each passing day. Knowing when to expect frost helps you harvest sensitive crops and extend your growing season with protection methods.
The chart below shows the probability of experiencing specific temperatures on various dates. Here's what this means for your garden:
These probabilities help you time your end-of-season harvests and know when to apply protective measures like row covers, cloches, or cold frames to extend your harvest.
| Temperature | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| First 16° | Jan 14 | -- | -- | -- | -- | -- | -- | -- | -- |
| First 20° | Dec 20 | Jan 4 | Jan 20 | -- | -- | -- | -- | -- | -- |
| First 24° | Dec 7 | Dec 19 | Dec 28 | Jan 5 | Jan 15 | Jan 29 | -- | -- | -- |
| First 28° | Nov 24 | Dec 2 | Dec 8 | Dec 13 | Dec 18 | Dec 23 | Dec 28 | Jan 4 | Jan 14 |
| First 32° | Nov 5 | Nov 13 | Nov 20 | Nov 25 | Nov 30 | Dec 5 | Dec 10 | Dec 16 | Dec 25 |
| First 36° | Oct 26 | Nov 1 | Nov 6 | Nov 10 | Nov 13 | Nov 17 | Nov 21 | Nov 25 | Dec 1 |
📍 Frost Dates for other nearby locations
- Houston Hobby, TX 24.5 mi
- Baytown, TX 25.2 mi
- Conroe, TX 25.6 mi
- Cleveland, TX 31.8 mi
- Sugar Land, TX 32.4 mi
- Liberty, TX 38.5 mi
- Thompsons, TX 40.1 mi
- Coldspring, TX 40.2 mi
- Alvin, TX 43.7 mi
- Anahuac, TX 51.2 mi
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Data is provided by the NOAA National Centers for Environmental Information.