The last 36°F Spring frost date is 30% likely to be on Apr 18. (See detailed probabilities below.)
The last 32°F light freeze date is 30% likely to be on Mar 26. (See detailed probabilities below.)
(See also 🍂 First Fall Frost Dates.)
Last frost date probabilities for Chico, CA are based on historical climate data.
Always check your local forecast for the most up-to-date frost warnings.
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The last spring frost signals when your area is safe from freezing temperatures. Tender plants can now grow outdoors without cold damage! This marks the beginning of the growing season. Last spring frost serves as your essential starting point for planting warm-season crops. It's also time to remove winter protection from your perennials. Enjoy the longer days and warmer weather!
Start seeds indoors several weeks before your last frost date. This gives plants time to reach transplanting size when weather permits. Plan your outdoor planting schedule around your area's average last frost date. Plant some crops before and some after this date to protect against weather changes. Look for spots in your yard where frost stays longer or disappears earlier. Create your own frost map to use all available growing space and extend your season. Keep watching your local weather forecast to catch any surprise late frosts.
| Probability of frost (36°F) on or after… | |
|---|---|
| 10% chance | May 2 |
| 20% chance | Apr 23 |
| 30% chance | Apr 18 |
| 40% chance | Apr 13 |
| 50% chance | Apr 9 |
| 60% chance | Apr 6 |
| 70% chance | Apr 2 |
| 80% chance | Mar 28 |
| 90% chance | Mar 18 |
| Probability of light freeze (32°F) on or after… | |
|---|---|
| 10% chance | Apr 10 |
| 20% chance | Apr 1 |
| 30% chance | Mar 26 |
| 40% chance | Mar 19 |
| 50% chance | Mar 13 |
| 60% chance | Mar 6 |
| 70% chance | Feb 28 |
| 80% chance | Feb 22 |
| 90% chance | Feb 12 |
| Probability of moderate freeze (28°F) on or after… | |
|---|---|
| 10% chance | Mar 8 |
| 20% chance | Feb 26 |
| 30% chance | Feb 19 |
| 40% chance | Feb 13 |
| 50% chance | Feb 7 |
| 60% chance | Feb 1 |
| 70% chance | Jan 27 |
| 80% chance | Jan 19 |
| 90% chance | Jan 4 |
| Probability of moderate hard freeze (24°F) on or after… | |
|---|---|
| 10% chance | Feb 12 |
| 20% chance | Feb 3 |
| 30% chance | Jan 29 |
| 40% chance | Jan 23 |
| 50% chance | Jan 16 |
| 60% chance | Jan 9 |
| 70% chance | Jan 3 |
| 80% chance | Dec 29 |
| 90% chance | Dec 19 |
| Probability of hard freeze (20°F) on or after… | |
|---|---|
| 10% chance | Feb 1 |
| 20% chance | Jan 24 |
| 30% chance | Jan 15 |
| 40% chance | Jan 9 |
| 50% chance | Jan 4 |
| 60% chance | Jan 1 |
| 70% chance | Dec 30 |
| 80% chance | Dec 24 |
| 90% chance | Dec 15 |
| Probability of severe hard freeze (16°F) on or after… | |
|---|---|
| 10% chance | rarely |
| 20% chance | rarely |
| 30% chance | rarely |
| 40% chance | rarely |
| 50% chance | rarely |
| 60% chance | rarely |
| 70% chance | rarely |
| 80% chance | rarely |
| 90% chance | rarely |
Agricultural climatic data from weather station: CHICO UNIV FARM (USC00041715)