Frost dates for Kern River Ph 3, CA
At Kern River Ph 3, the median last spring frost (32°F) is Apr 7 and the median first fall frost is Nov 11, for a typical growing season of 217 days. For a 90% chance that the last frost has passed, wait until Apr 28. Nearby ZIP codes are in USDA hardiness zones 7b to 8b.
- Apr 7Last spring frost (median)50% chance of 32°F after this date
- Apr 28Safer planting date10% chance of 32°F after this date
- Nov 11First fall frost (median)50% chance of 32°F by this date
- 217 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 8 | Apr 26 | May 16 |
| 32°F | Mar 16 | Apr 7 | Apr 28 |
| 28°F | Feb 10 | Mar 10 | Apr 6 |
| 24°F | Dec 27 | Feb 3 | Mar 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 | Oct 17 | Oct 31 | Nov 11 |
| 32°F | Oct 30 | Nov 11 | Nov 26 |
| 28°F | Nov 10 | Nov 24 | Dec 12 |
| 24°F | Nov 22 | Dec 9 | Jan 11 |
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 | 161 days | 186 days | 207 days |
| 32°F | 193 days | 217 days | 241 days |
| 28°F | 226 days | 257 days | 291 days |
| 24°F | 269 days | 314 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 | 95% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 93285 | 8b | 15 to 20°F | 6 km |
| 93238 | 8b | 15 to 20°F | 9 km |
| 93207 | 7b | 5 to 10°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 USC00044523, at 35.7831, -118.4389, elevation 824 m (2,703 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 68.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- S Lake Fs (17 km)
- Glennville (24 km)
- Loraine 5 NNE (44 km)
- Inyokern (58 km)
- Haiwee (59 km)
- Porterville (61 km)
- Bakersfield Airport (68 km)
- China Lake Naf (68 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.