Frost dates for Port Angeles Intl Airport, WA
At Port Angeles Intl Airport, the median last spring frost (32°F) is Apr 8 and the median first fall frost is Oct 31, for a typical growing season of 204 days. For a 90% chance that the last frost has passed, wait until May 1. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Apr 8Last spring frost (median)50% chance of 32°F after this date
- May 1Safer planting date10% chance of 32°F after this date
- Oct 31First fall frost (median)50% chance of 32°F by this date
- 204 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 16 | May 3 | May 21 |
| 32°F | Mar 21 | Apr 8 | May 1 |
| 28°F | Feb 13 | Mar 9 | Mar 30 |
| 24°F | Dec 23 | Feb 11 | Mar 7 |
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 | Nov 1 |
| 32°F | Oct 13 | Oct 31 | Nov 15 |
| 28°F | Oct 29 | Nov 18 | Dec 9 |
| 24°F | Nov 13 | Dec 9 | Jan 22 |
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 | 140 days | 162 days | 186 days |
| 32°F | 178 days | 204 days | 229 days |
| 28°F | 221 days | 250 days | 285 days |
| 24°F | 265 days | 308 days | 351 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 96% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 98362 | 8b | 15 to 20°F | 16 km |
| 98363 | 8b | 15 to 20°F | 27 km |
| 98382 | 8b | 15 to 20°F | 31 km |
| 98368 | 8b | 15 to 20°F | 51 km |
| 98305 | 8b | 15 to 20°F | 56 km |
| 98339 | 8b | 15 to 20°F | 57 km |
| 98376 | 8b | 15 to 20°F | 57 km |
| 98250 | 9a | 20 to 25°F | 57 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 USW00094266, at 48.1203, -123.4983, elevation 88 m (288 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 59.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Port Angeles (5 km)
- Elwha Ranger Station (13 km)
- Sequim 2 E (32 km)
- Port Townsend (55 km)
- Quilcene 2 SW (56 km)
- Friday Harbor Airport (57 km)
- Coupeville 1 S (61 km)
- Forks 1 E (66 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.