Frost dates for Dallas 2 NE, OR
At Dallas 2 NE, the median last spring frost (32°F) is Apr 16 and the median first fall frost is Nov 1, for a typical growing season of 199 days. For a 90% chance that the last frost has passed, wait until May 5. Nearby ZIP codes are in USDA hardiness zone 8b.
- Apr 16Last spring frost (median)50% chance of 32°F after this date
- May 5Safer planting date10% chance of 32°F after this date
- Nov 1First 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 6 | May 23 |
| 32°F | Mar 21 | Apr 16 | May 5 |
| 28°F | Feb 2 | Mar 7 | Apr 8 |
| 24°F | Dec 14 | Jan 29 | Feb 27 |
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 29 | Oct 13 | Nov 1 |
| 32°F | Oct 13 | Nov 1 | Nov 22 |
| 28°F | Oct 31 | Nov 20 | Dec 15 |
| 24°F | Nov 14 | Dec 9 | Jan 14 |
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 | 136 days | 159 days | 184 days |
| 32°F | 173 days | 199 days | 231 days |
| 28°F | 220 days | 258 days | 297 days |
| 24°F | 276 days | 319 days | 359 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 93% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 97338 | 8b | 15 to 20°F | 4 km |
| 97371 | 8b | 15 to 20°F | 9 km |
| 97378 | 8b | 15 to 20°F | 19 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 USC00352112, at 44.9464, -123.2911, elevation 88 m (290 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 49.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Falls City 2 SSW (18 km)
- Laurel Mountain (22 km)
- Salem McNary Field (23 km)
- McMinnville Muni Airport (30 km)
- Mc Minnville (32 km)
- Corvallis State Univ (36 km)
- Silverton (41 km)
- Stayton (41 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.