Frost Dates for Chandler, AZ
In Chandler, AZ, the average last spring frost is around Feb 13 and the average first fall frost around Dec 5, for a growing season of about 298 days. For frost-tender plants, wait until Mar 9, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Tempe Asu, AZ weather station, 11 miles away, elevation 1,167 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 9 | Nov 18 |
| 20% | Mar 1 | Nov 24 |
| 30% | Feb 24 | Nov 29 |
| 40% | Feb 18 | Dec 1 |
| 50% | Feb 13 | Dec 5 |
| 60% | Feb 6 | Dec 9 |
| 70% | Feb 1 | Dec 12 |
| 80% | Jan 23 | Dec 16 |
| 90% | Jan 12 | Dec 24 |
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 8 | Nov 26 |
| Frost / freeze (32°F) | Feb 13 | Dec 5 |
| Hard freeze (28°F) | Jan 16 | Dec 19 |
Planting calendar for Chandler
Transplant Feb 20 – Mar 6
Transplant Feb 27 – Mar 13
Transplant Feb 27 – Mar 13
Transplant Feb 20 – Mar 6
Sow or transplant Feb 20 – Mar 6
Sow or transplant Feb 20 – Mar 6
Sow or transplant Feb 27 – Mar 13
Sow or transplant Jan 16 – Jan 30
Fall sowing Oct 10 – Nov 7
Fall sowing Oct 10 – Oct 31
Fall sowing Sep 26 – Oct 10
Sow or transplant Jan 16 – Jan 30
Fall sowing Sep 26 – Oct 24
Transplant Jan 30 – Feb 13
Fall sowing Sep 12 – Sep 26
Transplant Jan 23 – Feb 6
Fall sowing Sep 12 – Sep 26
Fall sowing Sep 12 – Sep 26
Fall sowing Oct 24 – Nov 14
Fall sowing Sep 26 – Oct 10
Plant Jan 16 – Jan 30
Based on the average last frost (Feb 13) and first frost (Dec 5). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.