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

Planting zone for 65332 — Green Ridge, MO

ZIP code 65332 (Green Ridge, Pettis County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 7 and the first fall frost October 28.

Where ZIP 65332 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 7
First frostOct 28
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 Green Ridge, MO…

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 Green Ridge, MO

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 24only 10% chance of frost after
First fall frostOctober 28median — 10% chance by Oct 15
Growing season202 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 30 and returns around November 6.

From the NOAA station Windsor, MO — 9 miles away, elevation 840 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 65332

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 65332 came on Feb 25 — 20 days earlier than the 1991–2020 average (Mar 17).

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 Green Ridge, MO

The soil mapped at the center of ZIP 65332 is Hartwell — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables
pH6.1slightly acidic; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter3%moderate
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classPrime farmland if drainedUSDA classification

Map unit: Hartwell silt loam, 0 to 1 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 65332; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Green Ridge, MO

Summer high89 °Faverage high, July
Winter low21 °Faverage low, January
Hot days29days a year at 90 °F or more
Freezing nights111nights a year at 32 °F or less
Growing degree days4,180base 50 °F — the season’s usable heat
Longest day14 h 52 mindaylight on June 21
Shortest day9 h 28 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation43.4 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 40 °F, low 21 °F 40°21° JanFebruary: average high 45 °F, low 25 °F 45°25° FebMarch: average high 56 °F, low 33 °F 56°33° MarApril: average high 67 °F, low 44 °F 67°44° AprMay: average high 75 °F, low 55 °F 75°55° MayJune: average high 84 °F, low 65 °F 84°65° JunJuly: average high 89 °F, low 69 °F 89°69° JulAugust: average high 88 °F, low 67 °F 88°67° AugSeptember: average high 80 °F, low 59 °F 80°59° SepOctober: average high 69 °F, low 46 °F 69°46° OctNovember: average high 56 °F, low 36 °F 56°36° NovDecember: average high 44 °F, low 25 °F 44°25° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 1.96 in precipitation 2.0 JanFebruary: 2.06 in precipitation 2.1 FebMarch: 2.68 in precipitation 2.7 MarApril: 4.37 in precipitation 4.4 AprMay: 4.84 in precipitation 4.8 MayJune: 5.82 in precipitation 5.8 JunJuly: 3.86 in precipitation 3.9 JulAugust: 3.94 in precipitation 3.9 AugSeptember: 5.22 in precipitation 5.2 SepOctober: 3.62 in precipitation 3.6 OctNovember: 2.93 in precipitation 2.9 NovDecember: 2.11 in precipitation 2.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Windsor, MO (9 mi away); precipitation: Green Ridge 0.3 Nnw, MO (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

653606b
Windsor, MO · 9 mi
653356b
Ionia, MO · 9 mi
653056b
Whiteman Air Force Base, MO · 11 mi
653026b
Sedalia, MO · 12 mi
653016b
Sedalia, MO · 12 mi
653376b
La Monte, MO · 12 mi
653366b
Knob Noster, MO · 14 mi
647616b
Leeton, MO · 14 mi

Missouri planting zones →

Questions about 65332

What planting zone is ZIP code 65332?

ZIP code 65332 (Green Ridge, MO) 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 Green Ridge, MO?

The median last spring frost (32 °F) near 65332 is April 7; after April 24 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Windsor station.

When is the first frost in Green Ridge, MO?

The median first fall frost near 65332 is October 28, giving a median frost-free growing season of 202 days.

When should I plant tomatoes in 65332?

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 65332 get?

About 43.4 inches of precipitation a year (NOAA 1991–2020 normals, Green Ridge 0.3 Nnw station).

How hot do summers get in Green Ridge, MO?

The average high peaks at 89 °F in July, with about 29 days a year at 90 °F or more.

What kind of soil does 65332 have?

The USDA soil survey maps Hartwell at the center of ZIP 65332: silt loam, somewhat poorly drained, pH about 6.1 (slightly acidic).

Did spring come early in Green Ridge, MO in 2026?

Spring leaf-out near 65332 came on Feb 25 in 2026, 20 days earlier than the 1991–2020 average (Mar 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Green Ridge, MO?

Intermediate onions: the longest day near 65332 is 14 h 52 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 65332 change?

Yes. The 2012 USDA map put 65332 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.