Frost dates for Quillayute State Airport, WA
At Quillayute State Airport, the median last spring frost (32°F) is Apr 20 and the median first fall frost is Oct 26, for a typical growing season of 190 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zone 9a.
- Apr 20Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 26First fall frost (median)50% chance of 32°F by this date
- 190 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 27 | May 13 | May 31 |
| 32°F | Mar 29 | Apr 20 | May 10 |
| 28°F | Feb 17 | Mar 17 | Apr 15 |
| 24°F | Dec 23 | Feb 14 | Mar 15 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Sep 18 | Oct 5 | Oct 27 |
| 32°F | Oct 2 | Oct 26 | Nov 19 |
| 28°F | Oct 23 | Nov 15 | Dec 15 |
| 24°F | Nov 10 | Dec 9 | Jan 30 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 122 days | 144 days | 171 days |
| 32°F | 157 days | 190 days | 222 days |
| 28°F | 205 days | 243 days | 282 days |
| 24°F | 258 days | 305 days | 353 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 95% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 98350 | 9a | 20 to 25°F | 6 km |
| 98326 | 9a | 20 to 25°F | 25 km |
| 98357 | 9a | 20 to 25°F | 44 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USW00094240, at 47.9375, -124.5550, elevation 56 m (185 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 53.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Forks 1 E (15 km)
- Clearwater (45 km)
- Elwha Ranger Station (72 km)
- Quinault 4 NE (73 km)
- Port Angeles Intl Airport (81 km)
- Port Angeles (86 km)
- Humptulips Salmon Hatchery (89 km)
- Aberdeen 20nne (98 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.