Frost Dates for Royse City, TX
In Royse City, TX, the average last spring frost is around Mar 10 and the average first fall frost around Nov 19, for a growing season of about 254 days. For frost-tender plants, wait until Mar 31, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Lavon Dam, TX weather station, 11 miles away, elevation 510 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 31 | Nov 1 |
| 20% | Mar 23 | Nov 7 |
| 30% | Mar 18 | Nov 12 |
| 40% | Mar 13 | Nov 15 |
| 50% | Mar 10 | Nov 19 |
| 60% | Mar 6 | Nov 23 |
| 70% | Mar 2 | Nov 27 |
| 80% | Feb 26 | Dec 1 |
| 90% | Feb 20 | Dec 5 |
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 26 | Nov 8 |
| Frost / freeze (32°F) | Mar 10 | Nov 19 |
| Hard freeze (28°F) | Feb 26 | Dec 1 |
Planting calendar for Royse City
Transplant Mar 17 – Mar 31
Transplant Mar 24 – Apr 7
Transplant Mar 24 – Apr 7
Transplant Mar 17 – Mar 31
Sow or transplant Mar 17 – Mar 31
Sow or transplant Mar 17 – Mar 31
Sow or transplant Mar 24 – Apr 7
Sow or transplant Feb 10 – Feb 24
Fall sowing Sep 24 – Oct 22
Fall sowing Sep 24 – Oct 15
Fall sowing Sep 10 – Sep 24
Sow or transplant Feb 10 – Feb 24
Fall sowing Sep 10 – Oct 8
Transplant Feb 24 – Mar 10
Fall sowing Aug 27 – Sep 10
Transplant Feb 17 – Mar 3
Fall sowing Aug 27 – Sep 10
Fall sowing Aug 27 – Sep 10
Fall sowing Oct 8 – Oct 29
Fall sowing Sep 10 – Sep 24
Plant Feb 10 – Feb 24
Based on the average last frost (Mar 10) and first frost (Nov 19). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.