Frost dates for Pacific House, CA
At Pacific House, the median last spring frost (32°F) is Apr 26 and the median first fall frost is Nov 2, for a typical growing season of 191 days. For a 90% chance that the last frost has passed, wait until May 19. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Apr 26Last spring frost (median)50% chance of 32°F after this date
- May 19Safer planting date10% chance of 32°F after this date
- Nov 2First fall frost (median)50% chance of 32°F by this date
- 191 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 29 | May 20 | Jun 9 |
| 32°F | Apr 10 | Apr 26 | May 19 |
| 28°F | Mar 10 | Apr 6 | Apr 24 |
| 24°F | Jan 22 | Mar 5 | Apr 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 | Sep 30 | Oct 16 | Nov 4 |
| 32°F | Oct 14 | Nov 2 | Nov 20 |
| 28°F | Oct 31 | Nov 22 | Dec 11 |
| 24°F | Nov 19 | Dec 10 | Jan 12 |
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 | 122 days | 151 days | 178 days |
| 32°F | 162 days | 191 days | 214 days |
| 28°F | 202 days | 230 days | 262 days |
| 24°F | 243 days | 280 days | 325 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 99% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 95726 | 8b | 15 to 20°F | 8 km |
| 95636 | 8b | 15 to 20°F | 16 km |
| 95684 | 9a | 20 to 25°F | 21 km |
| 95666 | 9a | 20 to 25°F | 28 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 USC00046597, at 38.7583, -120.5031, elevation 1052 m (3,450 ft).
- Data quality: Representative (10+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 97.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Placerville (29 km)
- Georgetown Ranger Station (32 km)
- Tahoma (47 km)
- South Lake Tahoe Airport (47 km)
- Sutter Hill Cdf (50 km)
- Auburn (53 km)
- Colfax (53 km)
- Tahoe City (55 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.