Frost Dates: First and last frost dates for Boquillas Rs, 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 23, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
- Around April 8, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
- Before March 30, 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° | Feb 22 | Feb 11 | Feb 3 | Jan 26 | Jan 18 | Jan 9 | Dec 22 | -- | -- |
| Last 20° | Mar 6 | Feb 25 | Feb 19 | Feb 13 | Feb 8 | Feb 2 | Jan 27 | Jan 18 | -- |
| Last 24° | Mar 21 | Mar 12 | Mar 6 | Feb 28 | Feb 23 | Feb 18 | Feb 13 | Feb 7 | Jan 29 |
| Last 28° | Apr 7 | Mar 29 | Mar 23 | Mar 17 | Mar 12 | Mar 7 | Mar 1 | Feb 22 | Feb 13 |
| Last 32° | Apr 12 | Apr 6 | Apr 2 | Mar 29 | Mar 26 | Mar 22 | Mar 19 | Mar 14 | Mar 8 |
| Last 36° | Apr 23 | Apr 18 | Apr 14 | Apr 11 | Apr 8 | Apr 5 | Apr 2 | Mar 30 | Mar 25 |
ℹ️ How to read these charts for the fall
As summer ends in Boquillas Rs, 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° | Dec 6 | Dec 17 | Dec 25 | Jan 1 | Jan 9 | Jan 20 | -- | -- | -- |
| First 20° | Nov 23 | Dec 3 | Dec 11 | Dec 18 | Dec 24 | Dec 30 | Jan 7 | Jan 17 | -- |
| First 24° | Nov 9 | Nov 16 | Nov 21 | Nov 26 | Nov 30 | Dec 4 | Dec 8 | Dec 14 | Dec 21 |
| First 28° | Nov 3 | Nov 8 | Nov 12 | Nov 15 | Nov 18 | Nov 21 | Nov 25 | Nov 29 | Dec 4 |
| First 32° | Oct 28 | Nov 2 | Nov 6 | Nov 8 | Nov 11 | Nov 14 | Nov 17 | Nov 20 | Nov 25 |
| First 36° | Oct 21 | Oct 26 | Oct 29 | Nov 1 | Nov 3 | Nov 6 | Nov 8 | Nov 11 | Nov 16 |
📍 Frost Dates for other nearby locations
- Ballinger, TX 16.5 mi
- Hords Creek Dam, TX 25.1 mi
- Paint Rock, TX 31.0 mi
- Abilene, TX 34.2 mi
- Coleman, TX 34.9 mi
- Robert Lee, TX 40.9 mi
- Anson, TX 54.1 mi
- Roscoe, TX 54.5 mi
- Putnam, TX 56.3 mi
- San Angelo Mathis Fld, TX 59.2 mi
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Data is provided by the NOAA National Centers for Environmental Information.