Frost dates for Quilcene 2 SW, WA
At Quilcene 2 SW, the median last spring frost (32°F) is Apr 11 and the median first fall frost is Oct 28, for a typical growing season of 199 days. For a 90% chance that the last frost has passed, wait until May 1. Nearby ZIP codes are in USDA hardiness zone 8b.
- Apr 11Last spring frost (median)50% chance of 32°F after this date
- May 1Safer planting date10% chance of 32°F after this date
- Oct 28First fall frost (median)50% chance of 32°F by this date
- 199 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 19 | May 2 | May 17 |
| 32°F | Mar 21 | Apr 11 | May 1 |
| 28°F | Feb 13 | Mar 7 | Mar 31 |
| 24°F | Dec 24 | Feb 11 | Mar 4 |
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 | Oct 1 | Oct 12 | Oct 28 |
| 32°F | Oct 13 | Oct 28 | Nov 15 |
| 28°F | Oct 28 | Nov 15 | Dec 7 |
| 24°F | Nov 10 | Dec 4 | Jan 10 |
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 | 141 days | 161 days | 181 days |
| 32°F | 173 days | 199 days | 227 days |
| 28°F | 220 days | 252 days | 290 days |
| 24°F | 262 days | 304 days | 347 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 98376 | 8b | 15 to 20°F | 6 km |
| 98320 | 8b | 15 to 20°F | 16 km |
| 98365 | 8b | 15 to 20°F | 18 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 USC00456846, at 47.8092, -122.9136, elevation 38 m (123 ft).
- Data quality: Estimated from nearby stations (2+ years), 18 years of freeze data.
- Average days per year at or below 32°F: 83.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Bremerton (32 km)
- Sequim 2 E (33 km)
- Port Townsend (36 km)
- Coupeville 1 S (47 km)
- Everett Snohomish Airport (49 km)
- Seattle Sand Point Wsfo (51 km)
- Port Angeles (51 km)
- Cushman Powerhouse #2 (52 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.