When is the last frost in Orland Park, IL?

The average last spring frost (50% probability of 32°F) in Orland Park is around April 19, based on NOAA/NCEI 1991–2020 normals at the Little Red School Hse, IL station (6 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Orland Park?

The average first fall frost in Orland Park, IL is around October 22, giving roughly a 183-day frost-free growing season.

What planting zone is Orland Park, IL?

Orland Park is in USDA plant hardiness zone 6a (average annual extreme minimum temperature -10 to -5°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Orland Park?

In Orland Park, IL the warmest month is July (avg high 85.2°F) and the coldest is January (avg low 19.5°F). It averages about 40.9″ of precipitation a year and 38.8″ of snow.

Home › Illinois › Orland Park

Orland Park, IL Planting Calendar & Frost Dates

USDA hardiness zone 6a · ZIP 60462 · elevation 189′ · NOAA & USDA data

Orland Park is in USDA hardiness zone 6a (winters can dip to -10 to -5°F), with a growing season of about 183 days between the average last spring frost (April 19) and first fall frost (October 22). The warmest month is July (avg high 85.2°F); the coldest is January (avg low 19.5°F). It averages 40.9″ of precipitation a year and 38.8″ of snow, mostly mid-winter. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp -10 to -5°F

Last spring frost

April 19

avg (50% prob, 32°F)

First fall frost

October 22

avg (50% prob, 32°F)

Growing season

183 days

frost-free window

Warmest month

July

avg high 85.2°F

Month-by-month typical weather in Orland Park

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Chicago Midway Ap 3sw, IL (8.3 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	32.8	19.5	26.2	2.3	12.5
February	36.8	22.9	29.9	2.1	10.1
March	47.9	32	39.9	2.7	5.7
April	60	41.7	50.9	4.2	1
May	71.5	52.4	61.9	4.8	0
June	81.2	62.7	71.9	4.5	0
July	85.2	68.1	76.7	4	0
August	83.1	66.9	75	4.1	0
September	76.5	59.2	67.8	3.3	0
October	63.7	46.8	55.3	3.9	0.1
November	49.6	35.2	42.4	2.7	1.5
December	37.7	25.3	31.5	2.3	7.9

What to plant when in Orland Park

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 8 · Transplant out: April 26
Peppers	warm	Start seeds indoors: February 22 · Transplant out: May 3
Cucumbers	warm	Direct sow: April 26
Zucchini / squash	warm	Direct sow: April 26
Bush beans	warm	Direct sow: April 26
Sweet corn	warm	Direct sow: April 26
Basil	warm	Transplant out: April 26
Peas	cool	Sow (spring): March 15 · Sow (fall): August 27
Spinach	cool	Sow (spring): March 8 · Sow (fall): August 27
Lettuce	cool	Sow (spring): March 22 · Sow (fall): August 27
Kale	cool	Transplant (spring): March 29 · Sow (fall): August 13
Broccoli	cool	Transplant (spring): April 5
Carrots	cool	Sow (spring): March 29 · Sow (fall): August 13
Onions	cool	Transplant (spring): March 22
Potatoes	cool	Plant seed potatoes: April 5
Radishes	cool	Sow (spring): March 22 · Sow (fall): September 10

Dates are computed from Orland Park's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

Want the exact dates for your yard? →
Look up your precise ZIP-code frost dates and a full 26-crop planting calendar on our free interactive tool.
Open the frost & planting tool

🌾 Get a frost reminder

One email in early spring and early fall with the dates for your area. No spam.

Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in Illinois

Tinley Park, IL Oak Lawn, IL Bolingbrook, IL Romeoville, IL Berwyn, IL Calumet City, IL Cicero, IL Downers Grove, IL

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Little Red School Hse, IL, 6 mi (confidence: high). Monthly weather normals: Chicago Midway Ap 3sw, IL, 8.3 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.