When is the last frost in Greenwood, IN?

The average last spring frost (50% probability of 32°F) in Greenwood is around April 12, based on NOAA/NCEI 1991–2020 normals at the Indianapolis Nwfo, IN station (8.1 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Greenwood?

The average first fall frost in Greenwood, IN is around October 27, giving roughly a 196-day frost-free growing season.

What planting zone is Greenwood, IN?

Greenwood is in USDA plant hardiness zone 6b (average annual extreme minimum temperature -5 to 0°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Greenwood?

In Greenwood, IN the warmest month is July (avg high 85.2°F) and the coldest is January (avg low 20.9°F). It averages about 43.6″ of precipitation a year and 25.5″ of snow.

Home › Indiana › Greenwood

Greenwood, IN Planting Calendar & Frost Dates

USDA hardiness zone 6b · ZIP 46142 · elevation 241′ · NOAA & USDA data

Greenwood is in USDA hardiness zone 6b (winters can dip to -5 to 0°F), with a growing season of about 196 days between the average last spring frost (April 12) and first fall frost (October 27). The warmest month is July (avg high 85.2°F); the coldest is January (avg low 20.9°F). It averages 43.6″ of precipitation a year and 25.5″ of snow, mostly mid-winter. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp -5 to 0°F

Last spring frost

April 12

avg (50% prob, 32°F)

First fall frost

October 27

avg (50% prob, 32°F)

Growing season

196 days

frost-free window

Warmest month

July

avg high 85.2°F

Month-by-month typical weather in Greenwood

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Indianapolis, IN (8.1 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	36.1	20.9	28.5	3.1	8.8
February	40.8	24.2	32.5	2.4	6
March	51.9	33	42.4	3.7	3.2
April	63.9	43.3	53.6	4.3	0.2
May	73.4	53.7	63.6	4.8	0
June	82	62.9	72.5	5	0
July	85.2	66.4	75.8	4.4	0
August	84.3	65	74.7	3.2	0
September	78.2	57.4	67.8	3.1	0
October	65.6	45.5	55.5	3.2	0.1
November	51.8	34.9	43.3	3.5	0.8
December	40.4	26.2	33.3	2.9	6.4

What to plant when in Greenwood

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 1 · Transplant out: April 19
Peppers	warm	Start seeds indoors: February 15 · Transplant out: April 26
Cucumbers	warm	Direct sow: April 19
Zucchini / squash	warm	Direct sow: April 19
Bush beans	warm	Direct sow: April 19
Sweet corn	warm	Direct sow: April 19
Basil	warm	Transplant out: April 19
Peas	cool	Sow (spring): March 8 · Sow (fall): September 1
Spinach	cool	Sow (spring): March 1 · Sow (fall): September 1
Lettuce	cool	Sow (spring): March 15 · Sow (fall): September 1
Kale	cool	Transplant (spring): March 22 · Sow (fall): August 18
Broccoli	cool	Transplant (spring): March 29
Carrots	cool	Sow (spring): March 22 · Sow (fall): August 18
Onions	cool	Transplant (spring): March 15
Potatoes	cool	Plant seed potatoes: March 29
Radishes	cool	Sow (spring): March 15 · Sow (fall): September 15

Dates are computed from Greenwood's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

Want the exact dates for your yard? →
Look up your precise ZIP-code frost dates and a full 26-crop planting calendar on our free interactive tool.
Open the frost & planting tool

🌾 Get a frost reminder

One email in early spring and early fall with the dates for your area. No spam.

Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in Indiana

Indianapolis, IN Carmel, IN Fishers, IN Noblesville, IN Columbus, IN Bloomington, IN Anderson, IN Muncie, IN

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Indianapolis Nwfo, IN, 8.1 mi (confidence: high). Monthly weather normals: Indianapolis, IN, 8.1 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.