🌷 2026 Last Frost Dates for Jackman, Maine 04945
The last 36°F Spring frost date is 30% likely to be on Jun 12. (See detailed probabilities below.)
The last 32°F light freeze date is 30% likely to be on Jun 1. (See detailed probabilities below.)
(See also 🍂 First Fall Frost Dates.)
Last frost date probabilities for Jackman, ME are based on historical climate data.
Always check your local forecast for the most up-to-date frost warnings.
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What is a Last Frost Date?
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!
How to use the Last Frost Date?
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.
Last Frost Date Probabilities
| Probability of frost (36°F) on or after… | |
|---|---|
| 10% chance | Jun 24 |
| 20% chance | Jun 16 |
| 30% chance | Jun 12 |
| 40% chance | Jun 9 |
| 50% chance | Jun 7 |
| 60% chance | Jun 5 |
| 70% chance | Jun 2 |
| 80% chance | May 31 |
| 90% chance | May 26 |
| Probability of light freeze (32°F) on or after… | |
|---|---|
| 10% chance | Jun 7 |
| 20% chance | Jun 4 |
| 30% chance | Jun 1 |
| 40% chance | May 29 |
| 50% chance | May 26 |
| 60% chance | May 24 |
| 70% chance | May 20 |
| 80% chance | May 16 |
| 90% chance | May 10 |
| Probability of moderate freeze (28°F) on or after… | |
|---|---|
| 10% chance | May 27 |
| 20% chance | May 21 |
| 30% chance | May 18 |
| 40% chance | May 14 |
| 50% chance | May 11 |
| 60% chance | May 8 |
| 70% chance | May 6 |
| 80% chance | May 2 |
| 90% chance | Apr 29 |
| Probability of moderate hard freeze (24°F) on or after… | |
|---|---|
| 10% chance | May 12 |
| 20% chance | May 7 |
| 30% chance | May 4 |
| 40% chance | May 2 |
| 50% chance | Apr 30 |
| 60% chance | Apr 28 |
| 70% chance | Apr 25 |
| 80% chance | Apr 22 |
| 90% chance | Apr 19 |
| Probability of hard freeze (20°F) on or after… | |
|---|---|
| 10% chance | May 1 |
| 20% chance | Apr 28 |
| 30% chance | Apr 25 |
| 40% chance | Apr 22 |
| 50% chance | Apr 20 |
| 60% chance | Apr 17 |
| 70% chance | Apr 15 |
| 80% chance | Apr 11 |
| 90% chance | Apr 8 |
| Probability of severe hard freeze (16°F) on or after… | |
|---|---|
| 10% chance | Apr 22 |
| 20% chance | Apr 18 |
| 30% chance | Apr 15 |
| 40% chance | Apr 13 |
| 50% chance | Apr 10 |
| 60% chance | Apr 8 |
| 70% chance | Apr 6 |
| 80% chance | Apr 4 |
| 90% chance | Apr 2 |
Agricultural climatic data from weather station: JACKMAN (USC00174086:frost)