Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 62067 — Moro, IL

ZIP code 62067 (Moro, Madison County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 4 and the first fall frost November 5.

Where ZIP 62067 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 4

First frostNov 5

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 Moro, 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 Moro, 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 5median — 10% chance by Oct 25

Growing season214 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 25 and returns around November 16.

From the NOAA station Alton - Melvin Price L&D, IL — 10 miles away, elevation 404 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 62067

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 10 – Sep 24

GarlicPlant cloves · Oct 22 – Nov 26

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 4) and first fall frost (Nov 5) 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 62067 came on Mar 7 — 10 days earlier than the 1991–2020 average (Mar 17).

average
Mar 172026
Mar 7

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 Moro, IL

The soil mapped at the center of ZIP 62067 is Elco — silty clay loam, moderately well drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up

pH6.6neutral; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter0.5%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Elco 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 62067; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Moro, IL

Summer high87 °Faverage high, July

Winter low22 °Faverage low, January

Hot days29days a year at 90 °F or more

Freezing nights85nights a year at 32 °F or less

Growing degree days4,168base 50 °F — the season’s usable heat

Longest day14 h 54 mindaylight on June 21

Shortest day9 h 26 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation45.9 inper year, rain and melted snow

Snowfall11 inper year; 15 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Alton - Melvin Price L&D, IL (10 mi away); precipitation: Edwardsville 2 W, IL (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Cottage Hills, IL · 5 mi

620247a

East Alton, IL · 7 mi

620957a

Wood River, IL · 7 mi

620976b

Worden, IL · 7 mi

620257a

Edwardsville, IL · 7 mi

620847a

Roxana, IL · 7 mi

Illinois planting zones →

Questions about 62067

What planting zone is ZIP code 62067?

ZIP code 62067 (Moro, IL) 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 Moro, IL?

The median last spring frost (32 °F) near 62067 is April 4; after April 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Alton - Melvin Price L&D station.

When is the first frost in Moro, IL?

The median first fall frost near 62067 is November 5, giving a median frost-free growing season of 214 days.

When should I plant tomatoes in 62067?

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 62067 get?

About 45.9 inches of precipitation a year and 11 inches of snowfall (NOAA 1991–2020 normals, Edwardsville 2 W station).

How hot do summers get in Moro, IL?

The average high peaks at 87 °F in July, with about 29 days a year at 90 °F or more.

What kind of soil does 62067 have?

The USDA soil survey maps Elco at the center of ZIP 62067: silty clay loam, moderately well drained, pH about 6.6 (neutral).

Did spring come early in Moro, IL in 2026?

Spring leaf-out near 62067 came on Mar 7 in 2026, 10 days earlier than the 1991–2020 average (Mar 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Moro, IL?

Intermediate onions: the longest day near 62067 is 14 h 54 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 62067 change?

Yes. The 2012 USDA map put 62067 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.