Frost Dates for Lee's Summit, MO
In Lee's Summit, MO, the average last spring frost is around Apr 7 and the average first fall frost around Oct 29, for a growing season of about 202 days. For frost-tender plants, wait until Apr 24, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Lees Summit Muni Airport, MO weather station, 3 miles away, elevation 997 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 24 | Oct 14 |
| 20% | Apr 18 | Oct 19 |
| 30% | Apr 13 | Oct 23 |
| 40% | Apr 9 | Oct 26 |
| 50% | Apr 7 | Oct 29 |
| 60% | Apr 4 | Oct 31 |
| 70% | Apr 1 | Nov 3 |
| 80% | Mar 29 | Nov 6 |
| 90% | Mar 21 | Nov 12 |
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 19 | Oct 19 |
| Frost / freeze (32°F) | Apr 7 | Oct 29 |
| Hard freeze (28°F) | Mar 28 | Nov 7 |
Planting calendar for Lee's Summit
Transplant Apr 14 – Apr 28
Transplant Apr 21 – May 5
Transplant Apr 21 – May 5
Transplant Apr 14 – Apr 28
Sow or transplant Apr 14 – Apr 28
Sow or transplant Apr 14 – Apr 28
Sow or transplant Apr 21 – May 5
Sow or transplant Mar 10 – Mar 24
Fall sowing Sep 3 – Oct 1
Fall sowing Sep 3 – Sep 24
Fall sowing Aug 20 – Sep 3
Sow or transplant Mar 10 – Mar 24
Fall sowing Aug 20 – Sep 17
Transplant Mar 24 – Apr 7
Fall sowing Aug 6 – Aug 20
Transplant Mar 17 – Mar 31
Fall sowing Aug 6 – Aug 20
Fall sowing Aug 6 – Aug 20
Fall sowing Sep 17 – Oct 8
Fall sowing Aug 20 – Sep 3
Plant Mar 10 – Mar 24
Based on the average last frost (Apr 7) and first frost (Oct 29). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.