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

Planting zone for 47016 — Cedar Grove, IN

ZIP code 47016 (Cedar Grove, Franklin County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 20 and the first fall frost October 21.

Where ZIP 47016 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.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 20
First frostOct 21
2012 zone6a

Was 6a 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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Cedar Grove, IN…

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 Cedar Grove, IN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 20median — 50% chance of a later frost
Safe for tender plantsMay 7only 10% chance of frost after
First fall frostOctober 21median — 10% chance by Oct 6
Growing season182 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 6 and returns around October 31.

From the NOAA station Brookville, IN — 7 miles away, elevation 630 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 47016

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 9 – Mar 23
SpinachSow outdoors · Mar 9 – Mar 30
Broccoli, cabbageStart indoors · Feb 9 – Feb 23
Broccoli, cabbageTransplant · Mar 30 – Apr 13
Onion setsPlant outdoors · Mar 23 – Apr 6
PotatoesPlant outdoors · Mar 30 – Apr 13
LettuceSow outdoors · Mar 23 – Apr 6
Carrots, beetsSow outdoors · Mar 30 – Apr 13
TomatoesStart indoors · Feb 23 – Mar 9
TomatoesTransplant · Apr 27 – May 11
Peppers, eggplantStart indoors · Feb 9 – Feb 23
Peppers, eggplantTransplant · May 4 – May 18
BeansSow outdoors · Apr 27 – May 11
Sweet cornSow outdoors · Apr 27 – May 11
Cucumbers, squashSow outdoors · Apr 27 – May 11
Fall lettuce, spinachSow outdoors · Aug 26 – Sep 9
GarlicPlant cloves · Oct 7 – Nov 11
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 20) and first fall frost (Oct 21) 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 47016 came on Mar 10 — 12 days earlier than the 1991–2020 average (Mar 22).

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 6b in Indiana

564 plants native to the lower 48 states, recorded in Indiana, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 72

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Farborvitae50 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 105

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAllegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 202

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °F

Grasses 162

American beachgrass2.5 ft · blooms spring · high shade tolerance · to −28 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 11

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °Fheartleaf peppervine2 ft · blooms late spring · low shade tolerance · to −8 °F

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 Cedar Grove, IN.

Soil in Cedar Grove, IN

The soil mapped at the center of ZIP 47016 is Miami — clay loam, moderately well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH6.5neutral; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Miami clay loam, 6 to 12 percent slopes, severely eroded.

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 47016; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Cedar Grove, IN

Summer high87 °Faverage high, July
Winter low21 °Faverage low, January
Hot days32days a year at 90 °F or more
Freezing nights119nights a year at 32 °F or less
Growing degree days3,639base 50 °F — the season’s usable heat
Longest day14 h 57 mindaylight on June 21
Shortest day9 h 23 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation43.8 inper year, rain and melted snow
Snowfall18 inper year; 25 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 38 °F, low 21 °F 38°21° JanFebruary: average high 42 °F, low 23 °F 42°23° FebMarch: average high 53 °F, low 31 °F 53°31° MarApril: average high 66 °F, low 41 °F 66°41° AprMay: average high 76 °F, low 51 °F 76°51° MayJune: average high 84 °F, low 60 °F 84°60° JunJuly: average high 87 °F, low 64 °F 87°64° JulAugust: average high 86 °F, low 62 °F 86°62° AugSeptember: average high 81 °F, low 55 °F 81°55° SepOctober: average high 68 °F, low 42 °F 68°42° OctNovember: average high 54 °F, low 33 °F 54°33° NovDecember: average high 43 °F, low 26 °F 43°26° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.36 in precipitation, 6.1 in snowfall 3.4❄6 JanFebruary: 2.67 in precipitation, 5 in snowfall 2.7❄5 FebMarch: 3.58 in precipitation, 2.1 in snowfall 3.6❄2 MarApril: 4.60 in precipitation 4.6 AprMay: 4.79 in precipitation 4.8 MayJune: 4.89 in precipitation 4.9 JunJuly: 3.89 in precipitation 3.9 JulAugust: 3.00 in precipitation 3.0 AugSeptember: 2.96 in precipitation 3.0 SepOctober: 3.30 in precipitation, 0.1 in snowfall 3.3 OctNovember: 3.40 in precipitation, 0.3 in snowfall 3.4 NovDecember: 3.37 in precipitation, 4 in snowfall 3.4❄4 Dec

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

Nearby ZIP codes

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

470356b
New Trenton, IN · 4 mi
450536b
Okeana, OH · 6 mi
470606b
West Harrison, IN · 6 mi
470126a
Brookville, IN · 6 mi
470106a
Bath, IN · 9 mi
450636b
Shandon, OH · 10 mi
450306b
Harrison, OH · 10 mi
450566a
Oxford, OH · 11 mi

Indiana planting zones →

Questions about 47016

What planting zone is ZIP code 47016?

ZIP code 47016 (Cedar Grove, IN) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Cedar Grove, IN?

The median last spring frost (32 °F) near 47016 is April 20; after May 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Brookville station.

When is the first frost in Cedar Grove, IN?

The median first fall frost near 47016 is October 21, giving a median frost-free growing season of 182 days.

When should I plant tomatoes in 47016?

Start tomato seeds indoors around Feb 23 – Mar 9 and set transplants outside around Apr 27 – May 11, one to three weeks after the median last frost.

How much rain and snow does 47016 get?

About 43.8 inches of precipitation a year and 18 inches of snowfall (NOAA 1991–2020 normals, Brookville station).

How hot do summers get in Cedar Grove, IN?

The average high peaks at 87 °F in July, with about 32 days a year at 90 °F or more.

What kind of soil does 47016 have?

The USDA soil survey maps Miami at the center of ZIP 47016: clay loam, moderately well drained, pH about 6.5 (neutral).

Did spring come early in Cedar Grove, IN in 2026?

Spring leaf-out near 47016 came on Mar 10 in 2026, 12 days earlier than the 1991–2020 average (Mar 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Cedar Grove, IN?

Intermediate onions: the longest day near 47016 is 14 h 57 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 47016 change?

Yes. The 2012 USDA map put 47016 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.