Frost dates for N Fk Ranger Station, CA
At N Fk Ranger Station, the median last spring frost (32°F) is Apr 24 and the median first fall frost is Nov 4, for a typical growing season of 192 days. For a 90% chance that the last frost has passed, wait until May 14. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Apr 24Last spring frost (median)50% chance of 32°F after this date
- May 14Safer planting date10% chance of 32°F after this date
- Nov 4First fall frost (median)50% chance of 32°F by this date
- 192 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 25 | May 13 | Jun 6 |
| 32°F | Apr 7 | Apr 24 | May 14 |
| 28°F | Mar 9 | Apr 5 | Apr 23 |
| 24°F | Jan 27 | Mar 1 | Apr 2 |
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 1 | Oct 20 | Nov 6 |
| 32°F | Oct 14 | Nov 4 | Nov 20 |
| 28°F | Oct 30 | Nov 20 | Dec 6 |
| 24°F | Nov 14 | Dec 4 | Dec 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 | 131 days | 159 days | 185 days |
| 32°F | 163 days | 192 days | 216 days |
| 28°F | 198 days | 227 days | 261 days |
| 24°F | 242 days | 278 days | 318 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 93643 | 9a | 20 to 25°F | 3 km |
| 93669 | 9a | 20 to 25°F | 7 km |
| 93604 | 8b | 15 to 20°F | 13 km |
| 93614 | 9a | 20 to 25°F | 20 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 USC00046252, at 37.2328, -119.5097, elevation 806 m (2,645 ft).
- Data quality: Estimated from nearby stations (2+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 88.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Auberry 2 NW (16 km)
- Huntington Lake (26 km)
- Friant Government Camp (32 km)
- So Entrance Yosemite National Park (33 km)
- Balch Power House (52 km)
- Fresno Yosemite Intl Airport (54 km)
- Fresno 5 NE (55 km)
- Madera (56 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.