Frost Dates for Hollister, CA
In Hollister, CA, the average last spring frost is around Feb 19 and the average first fall frost around Dec 1, for a growing season of about 287 days. For frost-tender plants, wait until Mar 28, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Hollister 2, CA weather station, 1 mile away, elevation 275 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% | Mar 28 | Nov 12 |
| 20% | Mar 12 | Nov 19 |
| 30% | Mar 2 | Nov 23 |
| 40% | Feb 25 | Nov 27 |
| 50% | Feb 19 | Dec 1 |
| 60% | Feb 12 | Dec 3 |
| 70% | Feb 3 | Dec 6 |
| 80% | Jan 25 | Dec 12 |
| 90% | Jan 10 | Dec 25 |
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) | Mar 27 | Nov 15 |
| Frost / freeze (32°F) | Feb 19 | Dec 1 |
| Hard freeze (28°F) | Jan 16 | Dec 14 |
Planting calendar for Hollister
Transplant Feb 26 – Mar 12
Transplant Mar 5 – Mar 19
Transplant Mar 5 – Mar 19
Transplant Feb 26 – Mar 12
Sow or transplant Feb 26 – Mar 12
Sow or transplant Feb 26 – Mar 12
Sow or transplant Mar 5 – Mar 19
Sow or transplant Jan 22 – Feb 5
Fall sowing Oct 6 – Nov 3
Fall sowing Oct 6 – Oct 27
Fall sowing Sep 22 – Oct 6
Sow or transplant Jan 22 – Feb 5
Fall sowing Sep 22 – Oct 20
Transplant Feb 5 – Feb 19
Fall sowing Sep 8 – Sep 22
Transplant Jan 29 – Feb 12
Fall sowing Sep 8 – Sep 22
Fall sowing Sep 8 – Sep 22
Fall sowing Oct 20 – Nov 10
Fall sowing Sep 22 – Oct 6
Plant Jan 22 – Feb 5
Based on the average last frost (Feb 19) and first frost (Dec 1). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.