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

Planting zone for 47122 — Georgetown, IN

ZIP code 47122 (Georgetown, Floyd County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is March 31 and the first fall frost November 9.

Where ZIP 47122 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 frostMar 31
First frostNov 9
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 Georgetown, 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 Georgetown, IN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 31median — 50% chance of a later frost
Safe for tender plantsApril 14only 10% chance of frost after
First fall frostNovember 9median — 10% chance by Oct 31
Growing season225 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 18 and returns around November 20.

From the NOAA station Louisville Mcalpine, KY — 11 miles away, elevation 440 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 47122

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 17 – Mar 3
SpinachSow outdoors · Feb 17 – Mar 10
Broccoli, cabbageStart indoors · Jan 20 – Feb 3
Broccoli, cabbageTransplant · Mar 10 – Mar 24
Onion setsPlant outdoors · Mar 3 – Mar 17
PotatoesPlant outdoors · Mar 10 – Mar 24
LettuceSow outdoors · Mar 3 – Mar 17
Carrots, beetsSow outdoors · Mar 10 – Mar 24
TomatoesStart indoors · Feb 3 – Feb 17
TomatoesTransplant · Apr 7 – Apr 21
Peppers, eggplantStart indoors · Jan 20 – Feb 3
Peppers, eggplantTransplant · Apr 14 – Apr 28
BeansSow outdoors · Apr 7 – Apr 21
Sweet cornSow outdoors · Apr 7 – Apr 21
Cucumbers, squashSow outdoors · Apr 7 – Apr 21
Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28
GarlicPlant cloves · Oct 26 – Nov 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 9) 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 47122 came on Mar 7 — 7 days earlier than the 1991–2020 average (Mar 14).

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 Georgetown, IN

The soil mapped at the center of ZIP 47122 is Knobcreek — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH5.9moderately acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.7%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Knobcreek-Haggatt-Caneyville silt loams, 12 to 25 percent slopes, 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 47122; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Georgetown, IN

Summer high89 °Faverage high, July
Winter low26 °Faverage low, January
Hot days46days a year at 90 °F or more
Freezing nights77nights a year at 32 °F or less
Growing degree days4,560base 50 °F — the season’s usable heat
Longest day14 h 50 mindaylight on June 21
Shortest day9 h 30 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation50.6 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 43 °F, low 26 °F 43°26° JanFebruary: average high 48 °F, low 29 °F 48°29° FebMarch: average high 57 °F, low 37 °F 57°37° MarApril: average high 69 °F, low 47 °F 69°47° AprMay: average high 77 °F, low 58 °F 77°58° MayJune: average high 85 °F, low 66 °F 85°66° JunJuly: average high 89 °F, low 70 °F 89°70° JulAugust: average high 88 °F, low 69 °F 88°69° AugSeptember: average high 82 °F, low 62 °F 82°62° SepOctober: average high 70 °F, low 50 °F 70°50° OctNovember: average high 57 °F, low 38 °F 57°38° NovDecember: average high 47 °F, low 31 °F 47°31° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 3.63 in precipitation 3.6 JanFebruary: 3.73 in precipitation 3.7 FebMarch: 4.72 in precipitation 4.7 MarApril: 5.42 in precipitation 5.4 AprMay: 5.40 in precipitation 5.4 MayJune: 4.89 in precipitation 4.9 JunJuly: 4.34 in precipitation 4.3 JulAugust: 3.11 in precipitation 3.1 AugSeptember: 3.66 in precipitation 3.7 SepOctober: 3.93 in precipitation 3.9 OctNovember: 3.66 in precipitation 3.7 NovDecember: 4.10 in precipitation 4.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Louisville Mcalpine, KY (11 mi away); precipitation: Galena 3.0 Se, IN (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

471246b
Greenville, IN · 4 mi
471466b
Mount Saint Francis, IN · 5 mi
471146b
Crandall, IN · 5 mi
471366b
Lanesville, IN · 5 mi
471076b
Bradford, IN · 6 mi
471616b
New Salisbury, IN · 7 mi
471196b
Floyds Knobs, IN · 7 mi
471507a
New Albany, IN · 8 mi

Indiana planting zones →

Questions about 47122

What planting zone is ZIP code 47122?

ZIP code 47122 (Georgetown, 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 Georgetown, IN?

The median last spring frost (32 °F) near 47122 is March 31; after April 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Louisville Mcalpine station.

When is the first frost in Georgetown, IN?

The median first fall frost near 47122 is November 9, giving a median frost-free growing season of 225 days.

When should I plant tomatoes in 47122?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 47122 get?

About 50.6 inches of precipitation a year (NOAA 1991–2020 normals, Galena 3.0 Se station).

How hot do summers get in Georgetown, IN?

The average high peaks at 89 °F in July, with about 46 days a year at 90 °F or more.

What kind of soil does 47122 have?

The USDA soil survey maps Knobcreek at the center of ZIP 47122: silt loam, well drained, pH about 5.9 (moderately acidic).

Did spring come early in Georgetown, IN in 2026?

Spring leaf-out near 47122 came on Mar 7 in 2026, 7 days earlier than the 1991–2020 average (Mar 14), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Georgetown, IN?

Intermediate onions: the longest day near 47122 is 14 h 50 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 47122 change?

Yes. The 2012 USDA map put 47122 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.