Frost dates for Cloverdale, OR
At Cloverdale, the median last spring frost (32°F) is Mar 17 and the median first fall frost is Nov 22, for a typical growing season of 251 days. For a 90% chance that the last frost has passed, wait until Apr 15. Nearby ZIP codes are in USDA hardiness zones 8b to 9b.
- Mar 17Last spring frost (median)50% chance of 32°F after this date
- Apr 15Safer planting date10% chance of 32°F after this date
- Nov 22First fall frost (median)50% chance of 32°F by this date
- 251 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 31 | Apr 27 | May 15 |
| 32°F | Feb 9 | Mar 17 | Apr 15 |
| 28°F | Dec 3 | Jan 25 | Feb 28 |
| 24°F | Dec 2 | Dec 31 | Feb 12 |
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 2 | Oct 26 | Nov 21 |
| 32°F | Oct 26 | Nov 22 | Dec 31 |
| 28°F | Nov 8 | Dec 13 | Feb 14 |
| 24°F | Nov 30 | Dec 24 | Feb 9 |
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 | 152 days | 183 days | 217 days |
| 32°F | 206 days | 251 days | 304 days |
| 28°F | 279 days | 332 days | 365 days |
| 24°F | 333 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 74% |
| 24°F | 28% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 97135 | 9b | 25 to 30°F | 5 km |
| 97122 | 8b | 15 to 20°F | 7 km |
| 97112 | 9a | 20 to 25°F | 8 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 USC00351682, at 45.2050, -123.8925, elevation 4 m (12 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 17.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Otis 2 NE (19 km)
- Tillamook 6se (27 km)
- Tillamook (28 km)
- Laurel Mountain (40 km)
- Falls City 2 SSW (54 km)
- Dallas 2 NE (55 km)
- Mc Minnville (57 km)
- Newport 3n (59 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.