Frost dates for Vancouver Pearson Airport, WA
At Vancouver Pearson Airport, the median last spring frost (32°F) is Mar 29 and the median first fall frost is Nov 9, for a typical growing season of 223 days. For a 90% chance that the last frost has passed, wait until Apr 18. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 29Last spring frost (median)50% chance of 32°F after this date
- Apr 18Safer planting date10% chance of 32°F after this date
- Nov 9First fall frost (median)50% chance of 32°F by this date
- 223 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 3 | Apr 24 | May 10 |
| 32°F | Mar 6 | Mar 29 | Apr 18 |
| 28°F | Feb 4 | Mar 3 | Mar 27 |
| 24°F | Dec 26 | Feb 7 | Mar 1 |
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 7 | Oct 24 | Nov 12 |
| 32°F | Oct 22 | Nov 9 | Nov 30 |
| 28°F | Nov 3 | Nov 26 | Dec 22 |
| 24°F | Nov 16 | Dec 14 | Jan 24 |
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 | 159 days | 183 days | 209 days |
| 32°F | 196 days | 223 days | 252 days |
| 28°F | 234 days | 264 days | 300 days |
| 24°F | 273 days | 312 days | 356 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 94% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 98661 | 8b | 15 to 20°F | 3 km |
| 97217 | 9a | 20 to 25°F | 4 km |
| 97203 | 9a | 20 to 25°F | 7 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 USW00094298, at 45.6208, -122.6572, elevation 9 m (30 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 45.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Vancouver 4 NNE (6 km)
- Battle Ground (20 km)
- Skamania Fish Hatchery (34 km)
- Carson Fish Hatchery (60 km)
- Cougar 6 E (60 km)
- Longview (62 km)
- Mount Adams Ranger Station (96 km)
- Toledo FAA Airport (97 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.