Frost dates for Lemolo Lake 3 NNW, OR
At Lemolo Lake 3 NNW, the median last spring frost (32°F) is Jun 1 and the median first fall frost is Sep 23, for a typical growing season of 115 days. For a 90% chance that the last frost has passed, wait until Jun 21. Nearby ZIP codes are in USDA hardiness zones 6a to 8b.
- Jun 1Last spring frost (median)50% chance of 32°F after this date
- Jun 21Safer planting date10% chance of 32°F after this date
- Sep 23First fall frost (median)50% chance of 32°F by this date
- 115 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 | Jun 5 | Jun 22 | Jul 11 |
| 32°F | May 7 | Jun 1 | Jun 21 |
| 28°F | Apr 13 | May 3 | May 26 |
| 24°F | Mar 18 | Apr 10 | May 4 |
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 | Aug 13 | Sep 1 | Sep 21 |
| 32°F | Aug 31 | Sep 23 | Oct 13 |
| 28°F | Sep 22 | Oct 17 | Nov 4 |
| 24°F | Oct 16 | Nov 5 | Nov 28 |
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 | 44 days | 72 days | 99 days |
| 32°F | 84 days | 115 days | 146 days |
| 28°F | 132 days | 165 days | 194 days |
| 24°F | 175 days | 206 days | 237 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 97447 | 8b | 15 to 20°F | 24 km |
| 97733 | 6b | -5 to 0°F | 25 km |
| 97737 | 6a | -10 to -5°F | 40 km |
| 97731 | 6a | -10 to -5°F | 42 km |
| 97604 | 6b | -5 to 0°F | 42 km |
| 97463 | 8b | 15 to 20°F | 44 km |
| 97434 | 8b | 15 to 20°F | 49 km |
| 97492 | 8b | 15 to 20°F | 55 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 USC00354835, at 43.3597, -122.2208, elevation 1243 m (4,077 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 178.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Toketee Falls (21 km)
- Odell Lake-East (30 km)
- Chemult (38 km)
- Oakridge Fish Hatchery (46 km)
- Crater Lake NPS HQ (52 km)
- Wickiup Dam (56 km)
- Idleyld Park 4 NE (60 km)
- Prospect 2 SW (74 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.