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

Planting zone for 62345 — Kinderhook, IL

ZIP code 62345 (Kinderhook, Pike County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 4 and the first fall frost November 4.

Where ZIP 62345 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostApr 4
First frostNov 4
2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Kinderhook, IL…

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 Kinderhook, IL

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 4median — 50% chance of a later frost
Safe for tender plantsApril 19only 10% chance of frost after
First fall frostNovember 4median — 10% chance by Oct 23
Growing season212 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 26 and returns around November 14.

From the NOAA station Saverton L&D 22, MO — 9 miles away, elevation 472 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 62345

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 21 – Mar 7
SpinachSow outdoors · Feb 21 – Mar 14
Broccoli, cabbageStart indoors · Jan 24 – Feb 7
Broccoli, cabbageTransplant · Mar 14 – Mar 28
Onion setsPlant outdoors · Mar 7 – Mar 21
PotatoesPlant outdoors · Mar 14 – Mar 28
LettuceSow outdoors · Mar 7 – Mar 21
Carrots, beetsSow outdoors · Mar 14 – Mar 28
TomatoesStart indoors · Feb 7 – Feb 21
TomatoesTransplant · Apr 11 – Apr 25
Peppers, eggplantStart indoors · Jan 24 – Feb 7
Peppers, eggplantTransplant · Apr 18 – May 2
BeansSow outdoors · Apr 11 – Apr 25
Sweet cornSow outdoors · Apr 11 – Apr 25
Cucumbers, squashSow outdoors · Apr 11 – Apr 25
Fall lettuce, spinachSow outdoors · Sep 9 – Sep 23
GarlicPlant cloves · Oct 21 – Nov 25
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 4) and first fall frost (Nov 4) 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 62345 came on Mar 10 — 13 days earlier than the 1991–2020 average (Mar 23).

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 Kinderhook, IL

The soil mapped at the center of ZIP 62345 is Menfro — silty clay loam, well drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH6.2slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.5%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Menfro silty clay loam, 10 to 18 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 62345; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kinderhook, IL

Summer high89 °Faverage high, July
Winter low21 °Faverage low, January
Hot days37days a year at 90 °F or more
Freezing nights105nights a year at 32 °F or less
Growing degree days4,121base 50 °F — the season’s usable heat
Longest day14 h 59 mindaylight on June 21
Shortest day9 h 21 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation38.5 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 37 °F, low 21 °F 37°21° JanFebruary: average high 42 °F, low 24 °F 42°24° FebMarch: average high 53 °F, low 33 °F 53°33° MarApril: average high 65 °F, low 44 °F 65°44° AprMay: average high 75 °F, low 55 °F 75°55° MayJune: average high 85 °F, low 65 °F 85°65° JunJuly: average high 89 °F, low 69 °F 89°69° JulAugust: average high 87 °F, low 67 °F 87°67° AugSeptember: average high 80 °F, low 59 °F 80°59° SepOctober: average high 68 °F, low 47 °F 68°47° OctNovember: average high 54 °F, low 36 °F 54°36° NovDecember: average high 42 °F, low 26 °F 42°26° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 1.89 in precipitation 1.9 JanFebruary: 2.03 in precipitation 2.0 FebMarch: 2.71 in precipitation 2.7 MarApril: 3.88 in precipitation 3.9 AprMay: 4.68 in precipitation 4.7 MayJune: 4.39 in precipitation 4.4 JunJuly: 4.05 in precipitation 4.0 JulAugust: 3.52 in precipitation 3.5 AugSeptember: 3.76 in precipitation 3.8 SepOctober: 2.93 in precipitation 2.9 OctNovember: 2.59 in precipitation 2.6 NovDecember: 2.05 in precipitation 2.0 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Saverton L&D 22, MO (9 mi away); precipitation: Saverton L&D 22, MO (9 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.

623126a
Barry, IL · 5 mi
623436b
Hull, IL · 7 mi
623656a
Plainville, IL · 7 mi
623566b
New Canton, IL · 8 mi
634676b
Saverton, MO · 9 mi
623606a
Payson, IL · 11 mi
623476a
Liberty, IL · 12 mi
623146a
Baylis, IL · 13 mi

Illinois planting zones →

Questions about 62345

What planting zone is ZIP code 62345?

ZIP code 62345 (Kinderhook, IL) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Kinderhook, IL?

The median last spring frost (32 °F) near 62345 is April 4; after April 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Saverton L&D 22 station.

When is the first frost in Kinderhook, IL?

The median first fall frost near 62345 is November 4, giving a median frost-free growing season of 212 days.

When should I plant tomatoes in 62345?

Start tomato seeds indoors around Feb 7 – Feb 21 and set transplants outside around Apr 11 – Apr 25, one to three weeks after the median last frost.

How much rain and snow does 62345 get?

About 38.5 inches of precipitation a year (NOAA 1991–2020 normals, Saverton L&D 22 station).

How hot do summers get in Kinderhook, IL?

The average high peaks at 89 °F in July, with about 37 days a year at 90 °F or more.

What kind of soil does 62345 have?

The USDA soil survey maps Menfro at the center of ZIP 62345: silty clay loam, well drained, pH about 6.2 (slightly acidic).

Did spring come early in Kinderhook, IL in 2026?

Spring leaf-out near 62345 came on Mar 10 in 2026, 13 days earlier than the 1991–2020 average (Mar 23), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kinderhook, IL?

Intermediate onions: the longest day near 62345 is 14 h 59 min, so day-neutral types bulb best; long-day varieties may not bulb fully.