Frost Dates for Yuba City, CA
In Yuba City, CA, the average last spring frost is around Jan 15 and the average first fall frost around Dec 12, for a growing season of about 333 days. For frost-tender plants, wait until Feb 18, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Marysville, CA weather station, 3 miles away, elevation 57 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.
Frost probability by date
Chance of a 32°F frost after the spring date, or before the fall date.
| Chance | Last spring frost | First fall frost |
|---|---|---|
| 10% | Feb 18 | Nov 24 |
| 20% | Feb 5 | Nov 30 |
| 30% | Jan 30 | Dec 4 |
| 40% | Jan 22 | Dec 7 |
| 50% | Jan 15 | Dec 12 |
| 60% | Jan 8 | Dec 17 |
| 70% | Jan 2 | Dec 22 |
| 80% | Dec 28 | Dec 30 |
| 90% | Dec 18 | Jan 9 |
Light frost vs. hard freeze
Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.
| Temperature | Last in spring | First in fall |
|---|---|---|
| Light frost (36°F) | Feb 21 | Nov 28 |
| Frost / freeze (32°F) | Jan 15 | Dec 12 |
| Hard freeze (28°F) | Dec 31 | Dec 24 |
Planting calendar for Yuba City
Transplant Jan 22 – Feb 5
Transplant Jan 29 – Feb 12
Transplant Jan 29 – Feb 12
Transplant Jan 22 – Feb 5
Sow or transplant Jan 22 – Feb 5
Sow or transplant Jan 22 – Feb 5
Sow or transplant Jan 29 – Feb 12
Sow or transplant Dec 18 – Jan 1
Fall sowing Oct 17 – Nov 14
Fall sowing Oct 17 – Nov 7
Fall sowing Oct 3 – Oct 17
Sow or transplant Dec 18 – Jan 1
Fall sowing Oct 3 – Oct 31
Transplant Jan 1 – Jan 15
Fall sowing Sep 19 – Oct 3
Transplant Dec 25 – Jan 8
Fall sowing Sep 19 – Oct 3
Fall sowing Sep 19 – Oct 3
Fall sowing Oct 31 – Nov 21
Fall sowing Oct 3 – Oct 17
Plant Dec 18 – Jan 1
Based on the average last frost (Jan 15) and first frost (Dec 12). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.