Frost Dates: First and last frost dates for Quillayute, WA
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 June 16, you have a 90% chance of being frost-free — this is your "safe date" for planting tender crops
- Around May 26, there's a 50/50 chance of frost — check weather forecasts carefully if planting now
- Before May 13, 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 3 | Jan 20 | Jan 8 | Dec 19 | -- | -- | -- | -- | -- |
| Last 20° | Feb 17 | Feb 5 | Jan 26 | Jan 18 | Jan 10 | Dec 31 | Dec 19 | -- | -- |
| Last 24° | Mar 25 | Mar 14 | Mar 6 | Feb 27 | Feb 21 | Feb 14 | Feb 8 | Jan 31 | Jan 20 |
| Last 28° | Apr 27 | Apr 16 | Apr 8 | Apr 1 | Mar 26 | Mar 20 | Mar 13 | Mar 5 | Feb 22 |
| Last 32° | May 19 | May 11 | May 5 | Apr 30 | Apr 26 | Apr 21 | Apr 16 | Apr 11 | Apr 3 |
| Last 36° | Jun 16 | Jun 9 | Jun 4 | May 30 | May 26 | May 22 | May 18 | May 13 | May 6 |
ℹ️ How to read these charts for the fall
As summer ends in Quillayute, WA, 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 17 | Dec 31 | Jan 15 | -- | -- | -- | -- | -- | -- |
| First 20° | Nov 28 | Dec 11 | Dec 21 | Dec 29 | Jan 7 | Jan 18 | Feb 2 | -- | -- |
| First 24° | Nov 5 | Nov 17 | Nov 25 | Dec 2 | Dec 9 | Dec 16 | Dec 23 | Dec 31 | Jan 12 |
| First 28° | Oct 15 | Oct 25 | Nov 2 | Nov 8 | Nov 14 | Nov 19 | Nov 25 | Dec 3 | Dec 13 |
| First 32° | Sep 28 | Oct 4 | Oct 9 | Oct 13 | Oct 16 | Oct 20 | Oct 24 | Oct 28 | Nov 3 |
| First 36° | Sep 5 | Sep 12 | Sep 17 | Sep 21 | Sep 25 | Sep 29 | Oct 3 | Oct 8 | Oct 14 |
📍 Frost Dates for other nearby locations
- Forks, WA 13.1 mi
- Clearwater, WA 31.0 mi
- Elwha Rs, WA 66.1 mi
- Aberdeen, WA 74.2 mi
- Port Angeles, WA 77.8 mi
- Hoquiam Bowerman, WA 79.4 mi
- Aberdeen, WA 83.7 mi
- Grayland, WA 85.1 mi
- Victoria, BC 88.1 mi
- Port Alberni, BC 91.2 mi
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Data is provided by the NOAA National Centers for Environmental Information.