Frost Dates for Shawnee, KS
In Shawnee, KS, the average last spring frost is around Apr 16 and the average first fall frost around Oct 22, for a growing season of about 188 days. For frost-tender plants, wait until May 1, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Bonner Springs, KS weather station, 6 miles away, elevation 850 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% | May 1 | Oct 9 |
| 20% | Apr 26 | Oct 14 |
| 30% | Apr 23 | Oct 17 |
| 40% | Apr 20 | Oct 19 |
| 50% | Apr 16 | Oct 22 |
| 60% | Apr 13 | Oct 24 |
| 70% | Apr 9 | Oct 26 |
| 80% | Apr 5 | Oct 29 |
| 90% | Apr 1 | Nov 2 |
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 28 | Oct 13 |
| Frost / freeze (32°F) | Apr 16 | Oct 22 |
| Hard freeze (28°F) | Apr 5 | Oct 31 |
Planting calendar for Shawnee
Transplant Apr 23 – May 7
Transplant Apr 30 – May 14
Transplant Apr 30 – May 14
Transplant Apr 23 – May 7
Sow or transplant Apr 23 – May 7
Sow or transplant Apr 23 – May 7
Sow or transplant Apr 30 – May 14
Sow or transplant Mar 19 – Apr 2
Fall sowing Aug 27 – Sep 24
Fall sowing Aug 27 – Sep 17
Fall sowing Aug 13 – Aug 27
Sow or transplant Mar 19 – Apr 2
Fall sowing Aug 13 – Sep 10
Transplant Apr 2 – Apr 16
Fall sowing Jul 30 – Aug 13
Transplant Mar 26 – Apr 9
Fall sowing Jul 30 – Aug 13
Fall sowing Jul 30 – Aug 13
Fall sowing Sep 10 – Oct 1
Fall sowing Aug 13 – Aug 27
Plant Mar 19 – Apr 2
Based on the average last frost (Apr 16) and first frost (Oct 22). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.