When is the last frost in Grove City, OH?

The average last spring frost (50% probability of 32°F) in Grove City is around April 23, based on NOAA/NCEI 1991–2020 normals at the Columbus-valley Crossing, OH station (10.7 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 Grove City?

The average first fall frost in Grove City, OH is around October 19, giving roughly a 177-day frost-free growing season.

What planting zone is Grove City, OH?

Grove City 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 Grove City?

In Grove City, OH the warmest month is July (avg high 85.4°F) and the coldest is January (avg low 22°F). It averages about 41.6″ of precipitation a year and 28.2″ of snow.

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Grove City, OH Planting Calendar & Frost Dates

USDA hardiness zone 6b · ZIP 43123 · elevation 247′ · NOAA & USDA data

Grove City is in USDA hardiness zone 6b (winters can dip to -5 to 0°F), with a growing season of about 177 days between the average last spring frost (April 23) and first fall frost (October 19). The warmest month is July (avg high 85.4°F); the coldest is January (avg low 22°F). It averages 41.6″ of precipitation a year and 28.2″ 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 23

avg (50% prob, 32°F)

First fall frost

October 19

avg (50% prob, 32°F)

Growing season

177 days

frost-free window

Warmest month

July

avg high 85.4°F

Month-by-month typical weather in Grove City

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Columbus Port Columbus Intl Ap, OH (15.1 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	37.1	22	29.6	3	9.5
February	40.8	24.2	32.5	2.4	7.6
March	51.1	32	41.6	3.6	4.1
April	64.1	42.2	53.2	3.9	0.5
May	74.1	52.4	63.3	4	0
June	82.2	61.6	71.9	4.3	0
July	85.4	65.4	75.4	4.7	0
August	84.1	63.9	74	3.7	0
September	77.8	56.5	67.2	3.1	0
October	65.5	44.8	55.2	2.9	0.2
November	52.3	35	43.6	2.8	1.2
December	41.5	27.4	34.5	3.1	5.1

What to plant when in Grove City

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 12 · Transplant out: April 30
Peppers	warm	Start seeds indoors: February 26 · Transplant out: May 7
Cucumbers	warm	Direct sow: April 30
Zucchini / squash	warm	Direct sow: April 30
Bush beans	warm	Direct sow: April 30
Sweet corn	warm	Direct sow: April 30
Basil	warm	Transplant out: April 30
Peas	cool	Sow (spring): March 19 · Sow (fall): August 24
Spinach	cool	Sow (spring): March 12 · Sow (fall): August 24
Lettuce	cool	Sow (spring): March 26 · Sow (fall): August 24
Kale	cool	Transplant (spring): April 2 · Sow (fall): August 10
Broccoli	cool	Transplant (spring): April 9
Carrots	cool	Sow (spring): April 2 · Sow (fall): August 10
Onions	cool	Transplant (spring): March 26
Potatoes	cool	Plant seed potatoes: April 9
Radishes	cool	Sow (spring): March 26 · Sow (fall): September 7

Dates are computed from Grove City'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.

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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 Ohio

Dublin, OH Columbus, OH Westerville, OH Lancaster, OH Newark, OH Springfield, OH Dayton, OH Mansfield, OH

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 — Columbus-valley Crossing, OH, 10.7 mi (confidence: medium). Monthly weather normals: Columbus Port Columbus Intl Ap, OH, 15.1 mi (confidence: medium). 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.