Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 37080 — Joelton, TN

ZIP code 37080 (Joelton, Davidson County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 7 and the first fall frost October 28.

Where ZIP 37080 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone7a0 to 5 °F

Coldest night−17.8 to −15 °C

Last frostApr 7

First frostOct 28

2012 zone7a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Joelton, TN…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Joelton, TN

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 7median — 50% chance of a later frost

Safe for tender plantsApril 26only 10% chance of frost after

First fall frostOctober 28median — 10% chance by Oct 15

Growing season204 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 29 and returns around November 7.

From the NOAA station Goodlettsville 7wnw, TN — 5 miles away, elevation 820 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 37080

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 24 – Mar 10

SpinachSow outdoors · Feb 24 – Mar 17

Broccoli, cabbageStart indoors · Jan 27 – Feb 10

Broccoli, cabbageTransplant · Mar 17 – Mar 31

Onion setsPlant outdoors · Mar 10 – Mar 24

PotatoesPlant outdoors · Mar 17 – Mar 31

LettuceSow outdoors · Mar 10 – Mar 24

Carrots, beetsSow outdoors · Mar 17 – Mar 31

TomatoesStart indoors · Feb 10 – Feb 24

TomatoesTransplant · Apr 14 – Apr 28

Peppers, eggplantStart indoors · Jan 27 – Feb 10

Peppers, eggplantTransplant · Apr 21 – May 5

BeansSow outdoors · Apr 14 – Apr 28

Sweet cornSow outdoors · Apr 14 – Apr 28

Cucumbers, squashSow outdoors · Apr 14 – Apr 28

Fall lettuce, spinachSow outdoors · Sep 2 – Sep 16

GarlicPlant cloves · Oct 14 – Nov 18

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 7) and first fall frost (Oct 28) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 37080 came on Feb 25 — 5 days earlier than the 1991–2020 average (Mar 2).

average
Mar 22026
Feb 25

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 7a in Tennessee

560 plants native to the lower 48 states, recorded in Tennessee, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Joelton, TN.

Soil in Joelton, TN

The soil mapped at the center of ZIP 37080 is Sengtown — gravelly silt loam, well drained.

TextureGravelly silt loama good balance for most vegetables

pH6.3slightly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter1.8%low — add compost

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Sengtown gravelly silt loam, 12 to 20 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 37080; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Joelton, TN

Summer high86 °Faverage high, July

Winter low25 °Faverage low, January

Hot days28days a year at 90 °F or more

Freezing nights91nights a year at 32 °F or less

Growing degree days4,080base 50 °F — the season’s usable heat

Longest day14 h 38 mindaylight on June 21

Shortest day9 h 41 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation55.6 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Goodlettsville 7wnw, TN (5 mi away); precipitation: Goodlettsville 7wnw, TN (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

5 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

372027b

Nashville, TN · 5 mi

371897b

Whites Creek, TN · 6 mi

371467a

Pleasant View, TN · 8 mi

370737a

Greenbrier, TN · 9 mi

371527a

Ridgetop, TN · 9 mi

370727b

Goodlettsville, TN · 10 mi

370157b

Ashland City, TN · 10 mi

372077b

Nashville, TN · 10 mi

Tennessee planting zones →

Questions about 37080

What planting zone is ZIP code 37080?

ZIP code 37080 (Joelton, TN) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Joelton, TN?

The median last spring frost (32 °F) near 37080 is April 7; after April 26 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Goodlettsville 7wnw station.

When is the first frost in Joelton, TN?

The median first fall frost near 37080 is October 28, giving a median frost-free growing season of 204 days.

When should I plant tomatoes in 37080?

Start tomato seeds indoors around Feb 10 – Feb 24 and set transplants outside around Apr 14 – Apr 28, one to three weeks after the median last frost.

How much rain and snow does 37080 get?

About 55.6 inches of precipitation a year (NOAA 1991–2020 normals, Goodlettsville 7wnw station).

How hot do summers get in Joelton, TN?

The average high peaks at 86 °F in July, with about 28 days a year at 90 °F or more.

What kind of soil does 37080 have?

The USDA soil survey maps Sengtown at the center of ZIP 37080: gravelly silt loam, well drained, pH about 6.3 (slightly acidic).

Did spring come early in Joelton, TN in 2026?

Spring leaf-out near 37080 came on Feb 25 in 2026, 5 days earlier than the 1991–2020 average (Mar 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Joelton, TN?

Intermediate onions: the longest day near 37080 is 14 h 38 min, so day-neutral types bulb best; long-day varieties may not bulb fully.