The last 36°F Spring frost date is 30% likely to be on May 8. (See detailed probabilities below.)
The last 32°F light freeze date is 30% likely to be on Apr 20. (See detailed probabilities below.)
(See also 🍂 First Fall Frost Dates.)
Last frost date probabilities for Bellingham, WA are based on historical climate data.
Always check your local forecast for the most up-to-date frost warnings.
Book Recommendations (ads!)
📚 Growing Under Cover: Techniques for a More Productive, Weather-Resistant, Pest-Free Vegetable Garden
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 17 |
| 20% chance | May 12 |
| 30% chance | May 8 |
| 40% chance | May 5 |
| 50% chance | May 3 |
| 60% chance | Apr 30 |
| 70% chance | Apr 27 |
| 80% chance | Apr 23 |
| 90% chance | Apr 17 |
| Probability of light freeze (32°F) on or after… | |
|---|---|
| 10% chance | Apr 30 |
| 20% chance | Apr 25 |
| 30% chance | Apr 20 |
| 40% chance | Apr 15 |
| 50% chance | Apr 11 |
| 60% chance | Apr 8 |
| 70% chance | Apr 3 |
| 80% chance | Mar 30 |
| 90% chance | Mar 23 |
| Probability of moderate freeze (28°F) on or after… | |
|---|---|
| 10% chance | Apr 8 |
| 20% chance | Mar 31 |
| 30% chance | Mar 26 |
| 40% chance | Mar 21 |
| 50% chance | Mar 16 |
| 60% chance | Mar 11 |
| 70% chance | Mar 5 |
| 80% chance | Feb 28 |
| 90% chance | Feb 20 |
| Probability of moderate hard freeze (24°F) on or after… | |
|---|---|
| 10% chance | Mar 12 |
| 20% chance | Mar 4 |
| 30% chance | Feb 28 |
| 40% chance | Feb 24 |
| 50% chance | Feb 18 |
| 60% chance | Feb 12 |
| 70% chance | Feb 5 |
| 80% chance | Jan 28 |
| 90% chance | Jan 13 |
| Probability of hard freeze (20°F) on or after… | |
|---|---|
| 10% chance | Feb 26 |
| 20% chance | Feb 17 |
| 30% chance | Feb 8 |
| 40% chance | Feb 2 |
| 50% chance | Jan 27 |
| 60% chance | Jan 18 |
| 70% chance | Jan 9 |
| 80% chance | Jan 2 |
| 90% chance | Dec 22 |
| Probability of severe hard freeze (16°F) on or after… | |
|---|---|
| 10% chance | Feb 15 |
| 20% chance | Feb 4 |
| 30% chance | Jan 27 |
| 40% chance | Jan 19 |
| 50% chance | Jan 10 |
| 60% chance | Jan 4 |
| 70% chance | Dec 31 |
| 80% chance | Dec 23 |
| 90% chance | Dec 9 |
Agricultural climatic data from weather station: BELLINGHAM INTL AP (USW00024217)