When to plant in Kokomo, IN
USDA Zone 6aKokomo, Indiana frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Zone 6a means Kokomo sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
The average first fall frost in Kokomo is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
KOKOMO 3 WSW · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Kokomo’s own odds, recorded at KOKOMO 3 WSW.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 22 | May 6 | Apr 23 | Sep 24 | Oct 8 | Oct 20 |
| 32°F | May 13 | Apr 27 | Apr 13 | Oct 4 | Oct 18 | Nov 1 |
| 28°F | May 1 | Apr 15 | Mar 31 | Oct 13 | Oct 29 | Nov 11 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Kokomo, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Kokomo planting FAQ
When is the last spring frost in Kokomo, IN?
On average, the last spring frost in Kokomo is around April 27 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Kokomo, IN?
The first fall frost in Kokomo typically arrives around October 18 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Kokomo in?
Kokomo is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Kokomo?
There are roughly 174 frost-free days in Kokomo (a moderate growing season), running from the average last frost around April 27 to the first fall frost near October 18.
When should I plant tomatoes in Kokomo?
In Kokomo, start tomato seeds indoors around March 2–March 16, then transplant seedlings outdoors around May 4 once the danger of frost has passed.
Never miss a window in Kokomo
An email when it’s time to start seeds, transplant, and sow — timed to Kokomo’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Peru · 33 km
- Logansport · 37 km
- Frankfort · 40 km
- Marion · 41 km
- Wabash · 45 km
- Westfield · 48 km
- Noblesville · 49 km
- Zionsville · 55 km
Frost dates recorded at KOKOMO 3 WSW, 4 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Kokomo, IN — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00124662. Retrieved from https://blissgarden.com/indiana/kokomo.