Frost dates for Sutter Hill Cdf, CA
At Sutter Hill Cdf, the median last spring frost (32°F) is Mar 4 and the median first fall frost is Dec 11, for a typical growing season of 285 days. For a 90% chance that the last frost has passed, wait until Apr 8. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Mar 4Last spring frost (median)50% chance of 32°F after this date
- Apr 8Safer planting date10% chance of 32°F after this date
- Dec 11First fall frost (median)50% chance of 32°F by this date
- 285 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 9 | Apr 10 | May 4 |
| 32°F | Jan 6 | Mar 4 | Apr 8 |
| 28°F | Dec 14 | Jan 10 | Mar 2 |
| 24°F | Dec 10 | Dec 28 | Jan 13 |
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 | Nov 1 | Nov 25 | Dec 12 |
| 32°F | Nov 19 | Dec 11 | Jan 4 |
| 28°F | Dec 2 | Dec 27 | Jan 26 |
| 24°F | Dec 9 | Dec 25 | Jan 10 |
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 | 191 days | 228 days | 262 days |
| 32°F | 234 days | 285 days | 343 days |
| 28°F | 309 days | 357 days | 365 days |
| 24°F | 353 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 62% |
| 24°F | 17% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 95642 | 9b | 25 to 30°F | 5 km |
| 95601 | 9b | 25 to 30°F | 6 km |
| 95685 | 9a | 20 to 25°F | 7 km |
| 95699 | 9b | 25 to 30°F | 8 km |
| 95640 | 9b | 25 to 30°F | 13 km |
| 95665 | 9a | 20 to 25°F | 13 km |
| 95669 | 9b | 25 to 30°F | 15 km |
| 95629 | 9a | 20 to 25°F | 18 km |
| 95245 | 9a | 20 to 25°F | 19 km |
| 95689 | 9a | 20 to 25°F | 19 km |
| 95232 | 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 USC00048713, at 38.3772, -120.8008, elevation 483 m (1,586 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 15.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Camp Pardee (15 km)
- Placerville (35 km)
- Calaveras Big Trees (44 km)
- Pacific House (50 km)
- New Melones Dam HQ (50 km)
- Lodi (52 km)
- Sacramento 5 ESE (57 km)
- Sonora (58 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.