Frost Dates for Kokomo, IN

In Kokomo, IN, the average last spring frost is around Apr 27 and the average first fall frost around Oct 18, for a growing season of about 174 days. For frost-tender plants, wait until May 13, when the chance of frost drops to 10%.

Average last frostApr 2750% chance of frost after this date
Safe to plantMay 13only a 10% chance of frost after
Average first frostOct 1850% chance of frost before this date
Growing season174 daysfrost-free in an average year

Based on NOAA 1991–2020 records from the Kokomo 3 Wsw, IN weather station, 3 miles away, elevation 822 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.

ChanceLast spring frostFirst fall frost
10%May 13Oct 4
20%May 6Oct 9
30%May 3Oct 12
40%Apr 30Oct 15
50%Apr 27Oct 18
60%Apr 24Oct 20
70%Apr 21Oct 23
80%Apr 17Oct 27
90%Apr 13Nov 1

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.

TemperatureLast in springFirst in fall
Light frost (36°F)May 6Oct 8
Frost / freeze (32°F)Apr 27Oct 18
Hard freeze (28°F)Apr 15Oct 29

Planting calendar for Kokomo

Start indoors Plant outside Fall planting
JanFebMarAprMayJunJulAugSepOctNovDec
Tomatoes
Indoors Mar 2 – Mar 16
Transplant May 4 – May 18
Peppers
Indoors Feb 16 – Mar 2
Transplant May 11 – May 25
Eggplant
Indoors Feb 16 – Mar 2
Transplant May 11 – May 25
Basil
Indoors Mar 16 – Mar 30
Transplant May 4 – May 18
Cucumbers
Indoors Mar 30 – Apr 6
Sow or transplant May 4 – May 18
Zucchini and summer squash
Indoors Mar 30 – Apr 6
Sow or transplant May 4 – May 18
Pumpkins and winter squash
Sow May 4 – May 18
Watermelons and melons
Indoors Mar 30 – Apr 6
Sow or transplant May 11 – May 25
Green beans
Sow May 4 – May 18
Sweet corn
Sow May 4 – May 18
Lettuce
Indoors Mar 16 – Mar 30
Sow or transplant Mar 30 – Apr 13
Fall sowing Aug 23 – Sep 20
Spinach
Sow Mar 16 – Apr 6
Fall sowing Aug 23 – Sep 13
Peas
Sow Mar 16 – Mar 30
Fall sowing Aug 9 – Aug 23
Kale
Indoors Mar 2 – Mar 16
Sow or transplant Mar 30 – Apr 13
Fall sowing Aug 9 – Sep 6
Broccoli
Indoors Mar 2 – Mar 16
Transplant Apr 13 – Apr 27
Fall sowing Jul 26 – Aug 9
Cabbage
Indoors Mar 2 – Mar 16
Transplant Apr 6 – Apr 20
Fall sowing Jul 26 – Aug 9
Carrots
Sow Apr 6 – Apr 27
Fall sowing Jul 26 – Aug 9
Radishes
Sow Mar 23 – Apr 13
Fall sowing Sep 6 – Sep 27
Beets
Sow Apr 6 – Apr 27
Fall sowing Aug 9 – Aug 23
Onions (sets or transplants)
Indoors Feb 2 – Feb 16
Plant Mar 30 – Apr 13
Potatoes
Plant Apr 6 – Apr 20
Garlic
Plant Oct 18 – Nov 15

Based on the average last frost (Apr 27) and first frost (Oct 18). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.

Nearby cities

MarionWestfieldNoblesvilleZionsvilleCarmelAndersonFishersLafayetteAll Indiana towns