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

Planting zone for 37209 — Nashville, TN

ZIP code 37209 (Nashville, Davidson County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 6 and the first fall frost November 1.

Where ZIP 37209 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.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostApr 6
First frostNov 1
2012 zone7a

Was 7a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Nashville, 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 Nashville, TN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 6median — 50% chance of a later frost
Safe for tender plantsApril 25only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 19
Growing season208 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 25 and returns around November 10.

From the NOAA station Warner Park, TN — 7 miles away, elevation 627 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 37209

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 23 – Mar 9
SpinachSow outdoors · Feb 23 – Mar 16
Broccoli, cabbageStart indoors · Jan 26 – Feb 9
Broccoli, cabbageTransplant · Mar 16 – Mar 30
Onion setsPlant outdoors · Mar 9 – Mar 23
PotatoesPlant outdoors · Mar 16 – Mar 30
LettuceSow outdoors · Mar 9 – Mar 23
Carrots, beetsSow outdoors · Mar 16 – Mar 30
TomatoesStart indoors · Feb 9 – Feb 23
TomatoesTransplant · Apr 13 – Apr 27
Peppers, eggplantStart indoors · Jan 26 – Feb 9
Peppers, eggplantTransplant · Apr 20 – May 4
BeansSow outdoors · Apr 13 – Apr 27
Sweet cornSow outdoors · Apr 13 – Apr 27
Cucumbers, squashSow outdoors · Apr 13 – Apr 27
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 6) and first fall frost (Nov 1) 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 37209 came on Feb 21 — 5 days earlier than the 1991–2020 average (Feb 26).

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).

Soil in Nashville, TN

The soil mapped at the center of ZIP 37209 is Mimosa — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH5.3strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Mimosa silt loam, 12 to 25 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 37209; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Nashville, TN

Summer high87 °Faverage high, July
Winter low28 °Faverage low, January
Hot days30days a year at 90 °F or more
Freezing nights85nights a year at 32 °F or less
Growing degree days4,474base 50 °F — the season’s usable heat
Longest day14 h 37 mindaylight on June 21
Shortest day9 h 42 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation53.9 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 48 °F, low 28 °F 48°28° JanFebruary: average high 52 °F, low 31 °F 52°31° FebMarch: average high 61 °F, low 38 °F 61°38° MarApril: average high 71 °F, low 47 °F 71°47° AprMay: average high 77 °F, low 56 °F 77°56° MayJune: average high 83 °F, low 64 °F 83°64° JunJuly: average high 87 °F, low 69 °F 87°69° JulAugust: average high 87 °F, low 67 °F 87°67° AugSeptember: average high 82 °F, low 60 °F 82°60° SepOctober: average high 71 °F, low 48 °F 71°48° OctNovember: average high 60 °F, low 37 °F 60°37° NovDecember: average high 51 °F, low 31 °F 51°31° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.71 in precipitation 4.7 JanFebruary: 4.59 in precipitation 4.6 FebMarch: 5.07 in precipitation 5.1 MarApril: 5.04 in precipitation 5.0 AprMay: 5.51 in precipitation 5.5 MayJune: 4.44 in precipitation 4.4 JunJuly: 4.87 in precipitation 4.9 JulAugust: 3.50 in precipitation 3.5 AugSeptember: 4.10 in precipitation 4.1 SepOctober: 3.89 in precipitation 3.9 OctNovember: 3.87 in precipitation 3.9 NovDecember: 4.35 in precipitation 4.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Warner Park, TN (7 mi away); precipitation: Bells Bend Nature Center, TN (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

372187b
Nashville, TN · 3 mi
371437b
Pegram, TN · 4 mi
372057b
Nashville, TN · 6 mi
372217b
Nashville, TN · 6 mi
372157b
Nashville, TN · 8 mi
372087b
Nashville, TN · 9 mi
372127b
Nashville, TN · 9 mi
372287b
Nashville, TN · 9 mi

All 36 ZIP codes in Nashville → · Tennessee planting zones →

Questions about 37209

What planting zone is ZIP code 37209?

ZIP code 37209 (Nashville, TN) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Nashville, TN?

The median last spring frost (32 °F) near 37209 is April 6; after April 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Warner Park station.

When is the first frost in Nashville, TN?

The median first fall frost near 37209 is November 1, giving a median frost-free growing season of 208 days.

When should I plant tomatoes in 37209?

Start tomato seeds indoors around Feb 9 – Feb 23 and set transplants outside around Apr 13 – Apr 27, one to three weeks after the median last frost.

How much rain and snow does 37209 get?

About 53.9 inches of precipitation a year (NOAA 1991–2020 normals, Bells Bend Nature Center station).

How hot do summers get in Nashville, TN?

The average high peaks at 87 °F in July, with about 30 days a year at 90 °F or more.

What kind of soil does 37209 have?

The USDA soil survey maps Mimosa at the center of ZIP 37209: silt loam, well drained, pH about 5.3 (strongly acidic).

Did spring come early in Nashville, TN in 2026?

Spring leaf-out near 37209 came on Feb 21 in 2026, 5 days earlier than the 1991–2020 average (Feb 26), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Nashville, TN?

Intermediate onions: the longest day near 37209 is 14 h 37 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 37209 change?

Yes. The 2012 USDA map put 37209 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.