Last spring frost
Mar 4
Frost Dates for Redcrest, CA
First fall frost
Nov 22
Growing season
264 days
Hardiness zone
9b
In an average year around Redcrest, CA, the last spring frost (32°F) is about Mar 4 and the first fall frost is about Nov 22, giving roughly a 264-day growing season. To be safe most years, wait until Jan 27 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Apr 26 | Apr 8 | Mar 14 |
| Freeze (32°F) | Apr 8 | Mar 4 | Jan 27 |
| Hard (28°F) | Feb 28 | Jan 19 | Dec 6 |
| Severe (24°F) | Jan 31 | Dec 25 | Nov 30 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 26 | Apr 20 | Apr 16 | Apr 12 | Apr 8 | Apr 4 | Mar 31 | Mar 26 | Mar 14 |
| 32°F | Apr 8 | Mar 30 | Mar 22 | Mar 13 | Mar 4 | Feb 25 | Feb 17 | Feb 8 | Jan 27 |
| 28°F | Feb 28 | Feb 18 | Feb 8 | Jan 30 | Jan 19 | Jan 10 | Dec 31 | Dec 20 | Dec 6 |
| 24°F | Jan 31 | Jan 17 | Jan 7 | Jan 1 | Dec 25 | Dec 19 | Dec 12 | Dec 6 | Nov 30 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 19 | Nov 5 | Nov 23 |
| Freeze (32°F) | Nov 1 | Nov 22 | Dec 15 |
| Hard (28°F) | Nov 16 | Dec 8 | Jan 24 |
| Severe (24°F) | Nov 26 | Dec 16 | Jan 20 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 19 | Oct 27 | Oct 30 | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 16 | Nov 23 |
| 32°F | Nov 1 | Nov 8 | Nov 13 | Nov 18 | Nov 22 | Nov 26 | Dec 1 | Dec 6 | Dec 15 |
| 28°F | Nov 16 | Nov 24 | Nov 29 | Dec 3 | Dec 8 | Dec 16 | Dec 24 | Jan 4 | Jan 24 |
| 24°F | Nov 26 | Dec 1 | Dec 6 | Dec 10 | Dec 16 | Dec 23 | Dec 30 | Jan 6 | Jan 20 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Grizzly Creek Sp, Ca, about 1.4 miles away@if(!empty($station['elevation_ft'])), at 413 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Redcrest, CA?
On average, the last spring frost (32°F) around Redcrest, CA is about Mar 4. In cooler years it can run later, so for a safer bet many gardeners wait until Jan 27.
When is the first frost in the fall?
The first fall frost around Redcrest, CA typically arrives about Nov 22. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Mar 4 on average, or Jan 27 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 264 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 95528 Planting calendar → California frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026