Frost dates for Newport 1 SE, OR
At Newport 1 SE, the median last spring frost (32°F) is Feb 19 and the median first fall frost is Dec 16, for a typical growing season of 306 days. For a 90% chance that the last frost has passed, wait until Mar 23. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Feb 19Last spring frost (median)50% chance of 32°F after this date
- Mar 23Safer planting date10% chance of 32°F after this date
- Dec 16First fall frost (median)50% chance of 32°F by this date
- 306 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 | Mar 5 | Apr 5 | Apr 30 |
| 32°F | Dec 28 | Feb 19 | Mar 23 |
| 28°F | Dec 9 | Jan 20 | Feb 23 |
| 24°F | Dec 9 | Jan 2 | Feb 17 |
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 28 | Nov 21 | Dec 20 |
| 32°F | Nov 14 | Dec 16 | Feb 14 |
| 28°F | Dec 1 | Dec 30 | Feb 16 |
| 24°F | Dec 7 | Dec 31 | Feb 16 |
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 | 194 days | 229 days | 268 days |
| 32°F | 259 days | 306 days | 360 days |
| 28°F | 314 days | 365 days | 365 days |
| 24°F | 346 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 92% |
| 28°F | 48% |
| 24°F | 19% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 97366 | 9b | 25 to 30°F | 5 km |
| 97391 | 9a | 20 to 25°F | 14 km |
| 97376 | 9a | 20 to 25°F | 15 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 USC00356033, at 44.6247, -124.0469, elevation 2 m (8 ft).
- Data quality: Estimated from nearby stations (2+ years), 6 years of freeze data.
- Average days per year at or below 32°F: 11.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Newport (2 km)
- Newport 3n (7 km)
- Yachats (33 km)
- Alsea Fh (fall Creek) (34 km)
- Otis 2 NE (46 km)
- Corvallis Water Bureau (48 km)
- Laurel Mountain (50 km)
- Falls City 2 SSW (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.