When is the last frost in Clarksville, TN?

The average last spring frost (50% probability of 32°F) in Clarksville is around April 10, based on NOAA/NCEI 1991–2020 normals at the Clarksville No.2, TN station (1.8 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 Clarksville?

The average first fall frost in Clarksville, TN is around October 30, giving roughly a 203-day frost-free growing season.

What planting zone is Clarksville, TN?

Clarksville is in USDA plant hardiness zone 7b (average annual extreme minimum temperature 5 to 10°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Clarksville?

In Clarksville, TN the warmest month is July (avg high 89.9°F) and the coldest is January (avg low 27.8°F). It averages about 53.5″ of precipitation a year and 0.5″ of snow.

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Clarksville, TN Planting Calendar & Frost Dates

USDA hardiness zone 7b · ZIP 37040 · elevation 123′ · NOAA & USDA data

Clarksville is in USDA hardiness zone 7b (winters can dip to 5 to 10°F), with a growing season of about 203 days between the average last spring frost (April 10) and first fall frost (October 30). The warmest month is July (avg high 89.9°F); the coldest is January (avg low 27.8°F). It averages 53.5″ of precipitation a year and 0.5″ 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 10°F

Last spring frost

April 10

avg (50% prob, 32°F)

First fall frost

October 30

avg (50% prob, 32°F)

Growing season

203 days

frost-free window

Warmest month

July

avg high 89.9°F

Month-by-month typical weather in Clarksville

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Clarksville Wwtp, TN (1.8 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	46.8	27.8	37.3	4	0.3
February	51.6	30.6	41.1	4.5	0.1
March	61.2	38	49.6	4.8	0.1
April	71.8	47	59.4	5	0
May	79.4	56.8	68.1	5.6	0
June	86.6	65	75.8	4.7	0
July	89.9	69	79.5	4.6	0
August	89.6	67.4	78.5	3.7	0
September	83.6	59.8	71.7	3.4	0
October	72.3	47.7	60	4.3	0
November	59.7	37.1	48.4	4.1	0
December	50.1	31.1	40.6	4.9	0

What to plant when in Clarksville

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: February 27 · Transplant out: April 17
Peppers	warm	Start seeds indoors: February 13 · Transplant out: April 24
Cucumbers	warm	Direct sow: April 17
Zucchini / squash	warm	Direct sow: April 17
Bush beans	warm	Direct sow: April 17
Sweet corn	warm	Direct sow: April 17
Basil	warm	Transplant out: April 17
Peas	cool	Sow (spring): March 6 · Sow (fall): September 4
Spinach	cool	Sow (spring): February 27 · Sow (fall): September 4
Lettuce	cool	Sow (spring): March 13 · Sow (fall): September 4
Kale	cool	Transplant (spring): March 20 · Sow (fall): August 21
Broccoli	cool	Transplant (spring): March 27
Carrots	cool	Sow (spring): March 20 · Sow (fall): August 21
Onions	cool	Transplant (spring): March 13
Potatoes	cool	Plant seed potatoes: March 27
Radishes	cool	Sow (spring): March 13 · Sow (fall): September 18

Dates are computed from Clarksville'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 Tennessee

Nashville, TN Hendersonville, TN Brentwood, TN Franklin, TN Smyrna, TN Murfreesboro, TN Jackson, TN Chattanooga, TN

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 — Clarksville No.2, TN, 1.8 mi (confidence: high). Monthly weather normals: Clarksville Wwtp, TN, 1.8 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.