When is the last frost in Orem, UT?

The average last spring frost (50% probability of 32°F) in Orem is around April 19, based on NOAA/NCEI 1991–2020 normals at the Orem Trtmt Plt, UT station (3 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 Orem?

The average first fall frost in Orem, UT is around October 19, giving roughly a 182-day frost-free growing season.

What planting zone is Orem, UT?

Orem is in USDA plant hardiness zone 7a (average annual extreme minimum temperature 0 to 5°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Orem?

In Orem, UT the warmest month is July (avg high 93.4°F) and the coldest is January (avg low 23.8°F). It averages about 16.4″ of precipitation a year and 41.4″ of snow.

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Orem, UT Planting Calendar & Frost Dates

USDA hardiness zone 7a · ZIP 84057 · elevation 1430′ · NOAA & USDA data

Orem is in USDA hardiness zone 7a (winters can dip to 0 to 5°F), with a growing season of about 182 days between the average last spring frost (April 19) and first fall frost (October 19). The warmest month is July (avg high 93.4°F); the coldest is January (avg low 23.8°F). It averages 16.4″ of precipitation a year and 41.4″ 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 0 to 5°F

Last spring frost

April 19

avg (50% prob, 32°F)

First fall frost

October 19

avg (50% prob, 32°F)

Growing season

182 days

frost-free window

Warmest month

July

avg high 93.4°F

Month-by-month typical weather in Orem

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Pleasant Grove, UT (3.9 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	40.8	23.8	32.3	2	11.5
February	47.2	27.9	37.5	1.6	8.3
March	57.9	35.1	46.5	1.6	3.9
April	64.3	40.1	52.2	2	2.8
May	74.5	47.9	61.2	2	0.3
June	85.1	55.7	70.4	0.9	0
July	93.4	63.9	78.6	0.6	0
August	91.3	62.3	76.8	0.8	0
September	81.8	53.1	67.4	1.1	0
October	67.5	41.7	54.6	1.4	0.8
November	52.9	32.2	42.5	1.2	3.5
December	41.4	24.8	33.1	1.5	10.3

What to plant when in Orem

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 24
Spinach	cool	Sow (spring): March 8 · Sow (fall): August 24
Lettuce	cool	Sow (spring): March 22 · Sow (fall): August 24
Kale	cool	Transplant (spring): March 29 · Sow (fall): August 10
Broccoli	cool	Transplant (spring): April 5
Carrots	cool	Sow (spring): March 29 · Sow (fall): August 10
Onions	cool	Transplant (spring): March 22
Potatoes	cool	Plant seed potatoes: April 5
Radishes	cool	Sow (spring): March 22 · Sow (fall): September 7

Dates are computed from Orem'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.

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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 Utah

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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 — Orem Trtmt Plt, UT, 3 mi (confidence: high). Monthly weather normals: Pleasant Grove, UT, 3.9 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.