Last spring frost
Mar 25
Frost Dates for Auberry, CA
First fall frost
Dec 3
Growing season
253 days
Hardiness zone
9a
In an average year around Auberry, CA, the last spring frost (32°F) is about Mar 25 and the first fall frost is about Dec 3, giving roughly a 253-day growing season. To be safe most years, wait until Feb 5 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) | May 12 | Apr 17 | Mar 23 |
| Freeze (32°F) | Apr 22 | Mar 25 | Feb 5 |
| Hard (28°F) | Apr 1 | Jan 29 | Dec 21 |
| Severe (24°F) | Jan 30 | Dec 30 | Dec 10 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 12 | May 2 | Apr 27 | Apr 22 | Apr 17 | Apr 12 | Apr 8 | Apr 2 | Mar 23 |
| 32°F | Apr 22 | Apr 13 | Apr 7 | Apr 1 | Mar 25 | Mar 15 | Mar 4 | Feb 20 | Feb 5 |
| 28°F | Apr 1 | Mar 12 | Feb 23 | Feb 7 | Jan 29 | Jan 19 | Jan 10 | Jan 1 | Dec 21 |
| 24°F | Jan 30 | Jan 13 | Jan 7 | Jan 1 | Dec 30 | Dec 26 | Dec 22 | Dec 17 | Dec 10 |
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 31 | Nov 17 | Dec 4 |
| Freeze (32°F) | Nov 14 | Dec 3 | Dec 21 |
| Hard (28°F) | Nov 28 | Dec 17 | Jan 26 |
| Severe (24°F) | Dec 6 | Dec 26 | Jan 20 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 31 | Nov 5 | Nov 10 | Nov 14 | Nov 17 | Nov 21 | Nov 24 | Nov 28 | Dec 4 |
| 32°F | Nov 14 | Nov 21 | Nov 25 | Nov 29 | Dec 3 | Dec 6 | Dec 9 | Dec 14 | Dec 21 |
| 28°F | Nov 28 | Dec 3 | Dec 8 | Dec 12 | Dec 17 | Dec 22 | Dec 29 | Jan 7 | Jan 26 |
| 24°F | Dec 6 | Dec 12 | Dec 17 | Dec 22 | Dec 26 | Dec 29 | Jan 1 | Jan 9 | 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: Auberry 2 Nw, Ca, about 6.2 miles away@if(!empty($station['elevation_ft'])), at 2,090 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 Auberry, CA?
On average, the last spring frost (32°F) around Auberry, CA is about Mar 25. In cooler years it can run later, so for a safer bet many gardeners wait until Feb 5.
When is the first frost in the fall?
The first fall frost around Auberry, CA typically arrives about Dec 3. 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 25 on average, or Feb 5 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 253 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 93651 Planting calendar → California frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026