When is the last frost in Florence, SC?

The average last spring frost (50% probability of 32°F) in Florence is around March 19, based on NOAA/NCEI 1991–2020 normals at the Florence Rgnl Ap, SC station (6 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 Florence?

The average first fall frost in Florence, SC is around November 13, giving roughly a 241-day frost-free growing season.

What planting zone is Florence, SC?

Florence is in USDA plant hardiness zone 8b (average annual extreme minimum temperature 15 to 20°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Florence?

In Florence, SC the warmest month is July (avg high 92.9°F) and the coldest is January (avg low 34.2°F). It averages about 48.1″ of precipitation a year.

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Florence, SC Planting Calendar & Frost Dates

USDA hardiness zone 8b · ZIP 29501 · elevation 37′ · NOAA & USDA data

Florence is in USDA hardiness zone 8b (winters can dip to 15 to 20°F), with a growing season of about 241 days between the average last spring frost (March 19) and first fall frost (November 13). The warmest month is July (avg high 92.9°F); the coldest is January (avg low 34.2°F). It averages 48.1″ of precipitation a year. 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 15 to 20°F

Last spring frost

March 19

avg (50% prob, 32°F)

First fall frost

November 13

avg (50% prob, 32°F)

Growing season

241 days

frost-free window

Warmest month

July

avg high 92.9°F

Month-by-month typical weather in Florence

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Florence 8 Ne, SC (7.9 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)
January	56.9	34.2	45.5	3.7
February	60	36.4	48.2	3.7
March	67.8	43.4	55.6	3.5
April	76.3	51.2	63.7	3.5
May	83.3	60.4	71.9	3.9
June	89.4	68.8	79.1	4.5
July	92.9	72.4	82.7	4.7
August	91.1	70.5	80.8	5.5
September	86	64.8	75.4	5.1
October	76.8	53.1	65	3.4
November	67.5	42	54.7	3.1
December	59.8	36.5	48.2	3.9

What to plant when in Florence

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: February 5 · Transplant out: March 26
Peppers	warm	Start seeds indoors: January 22 · Transplant out: April 2
Cucumbers	warm	Direct sow: March 26
Zucchini / squash	warm	Direct sow: March 26
Bush beans	warm	Direct sow: March 26
Sweet corn	warm	Direct sow: March 26
Basil	warm	Transplant out: March 26
Peas	cool	Sow (spring): February 12 · Sow (fall): September 18
Spinach	cool	Sow (spring): February 5 · Sow (fall): September 18
Lettuce	cool	Sow (spring): February 19 · Sow (fall): September 18
Kale	cool	Transplant (spring): February 26 · Sow (fall): September 4
Broccoli	cool	Transplant (spring): March 5
Carrots	cool	Sow (spring): February 26 · Sow (fall): September 4
Onions	cool	Transplant (spring): February 19
Potatoes	cool	Plant seed potatoes: March 5
Radishes	cool	Sow (spring): February 19 · Sow (fall): October 2

Dates are computed from Florence'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 South Carolina

Sumter, SC Columbia, SC Rock Hill, SC Goose Creek, SC Summerville, SC North Charleston, SC Mount Pleasant, SC Charleston, SC

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 — Florence Rgnl Ap, SC, 6 mi (confidence: high). Monthly weather normals: Florence 8 Ne, SC, 7.9 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.