🌷 2026 Last Frost Dates for Creston, Washington 99117
A 36°F frost is always a risk here. (See detailed probabilities below.)
The last 32°F light freeze date is 30% likely to be on Jun 9. (See detailed probabilities below.)
(See also 🍂 First Fall Frost Dates.)
Last frost date probabilities for Creston, WA 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 | always |
| 20% chance | always |
| 30% chance | always |
| 40% chance | always |
| 50% chance | always |
| 60% chance | always |
| 70% chance | always |
| 80% chance | always |
| 90% chance | always |
| Probability of light freeze (32°F) on or after… | |
|---|---|
| 10% chance | Jun 22 |
| 20% chance | Jun 14 |
| 30% chance | Jun 9 |
| 40% chance | Jun 5 |
| 50% chance | Jun 1 |
| 60% chance | May 28 |
| 70% chance | May 21 |
| 80% chance | May 16 |
| 90% chance | May 10 |
| Probability of moderate freeze (28°F) on or after… | |
|---|---|
| 10% chance | Jun 1 |
| 20% chance | May 23 |
| 30% chance | May 16 |
| 40% chance | May 11 |
| 50% chance | May 8 |
| 60% chance | May 5 |
| 70% chance | May 2 |
| 80% chance | Apr 29 |
| 90% chance | Apr 24 |
| Probability of moderate hard freeze (24°F) on or after… | |
|---|---|
| 10% chance | May 7 |
| 20% chance | May 3 |
| 30% chance | Apr 29 |
| 40% chance | Apr 26 |
| 50% chance | Apr 22 |
| 60% chance | Apr 19 |
| 70% chance | Apr 15 |
| 80% chance | Apr 9 |
| 90% chance | Mar 30 |
| Probability of hard freeze (20°F) on or after… | |
|---|---|
| 10% chance | Apr 24 |
| 20% chance | Apr 16 |
| 30% chance | Apr 8 |
| 40% chance | Apr 2 |
| 50% chance | Mar 27 |
| 60% chance | Mar 18 |
| 70% chance | Mar 11 |
| 80% chance | Mar 6 |
| 90% chance | Feb 28 |
| Probability of severe hard freeze (16°F) on or after… | |
|---|---|
| 10% chance | Mar 26 |
| 20% chance | Mar 13 |
| 30% chance | Mar 8 |
| 40% chance | Mar 4 |
| 50% chance | Mar 1 |
| 60% chance | Feb 26 |
| 70% chance | Feb 21 |
| 80% chance | Feb 16 |
| 90% chance | Feb 5 |
Agricultural climatic data from weather station: WILBUR (USC00459238:frost)