Frost Dates for Edmond, OK
In Edmond, OK, the average last spring frost is around Apr 10 and the average first fall frost around Oct 28, for a growing season of about 199 days. For frost-tender plants, wait until Apr 30, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Guthrie 5S, OK weather station, 10 miles away, elevation 1,110 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% | Apr 30 | Oct 14 |
| 20% | Apr 22 | Oct 19 |
| 30% | Apr 18 | Oct 23 |
| 40% | Apr 13 | Oct 25 |
| 50% | Apr 10 | Oct 28 |
| 60% | Apr 6 | Oct 31 |
| 70% | Apr 4 | Nov 2 |
| 80% | Mar 30 | Nov 5 |
| 90% | Mar 24 | Nov 10 |
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) | Apr 22 | Oct 19 |
| Frost / freeze (32°F) | Apr 10 | Oct 28 |
| Hard freeze (28°F) | Mar 30 | Nov 5 |
Planting calendar for Edmond
Transplant Apr 17 – May 1
Transplant Apr 24 – May 8
Transplant Apr 24 – May 8
Transplant Apr 17 – May 1
Sow or transplant Apr 17 – May 1
Sow or transplant Apr 17 – May 1
Sow or transplant Apr 24 – May 8
Sow or transplant Mar 13 – Mar 27
Fall sowing Sep 2 – Sep 30
Fall sowing Sep 2 – Sep 23
Fall sowing Aug 19 – Sep 2
Sow or transplant Mar 13 – Mar 27
Fall sowing Aug 19 – Sep 16
Transplant Mar 27 – Apr 10
Fall sowing Aug 5 – Aug 19
Transplant Mar 20 – Apr 3
Fall sowing Aug 5 – Aug 19
Fall sowing Aug 5 – Aug 19
Fall sowing Sep 16 – Oct 7
Fall sowing Aug 19 – Sep 2
Plant Mar 13 – Mar 27
Based on the average last frost (Apr 10) and first frost (Oct 28). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.