When is the last frost in Sandy, UT?

The average last spring frost (50% probability of 32°F) in Sandy is around April 29, based on NOAA/NCEI 1991–2020 normals at the Cottonwood Weir, UT station (2.9 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 Sandy?

The average first fall frost in Sandy, UT is around October 22, giving roughly a 174-day frost-free growing season.

What planting zone is Sandy, UT?

Sandy is in USDA plant hardiness zone 7b (average annual extreme minimum temperature 5 to 10°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Sandy?

In Sandy, UT the warmest month is July (avg high 90.7°F) and the coldest is January (avg low 22.8°F). It averages about 24.3″ of precipitation a year and 81.9″ of snow.

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Sandy, UT Planting Calendar & Frost Dates

USDA hardiness zone 7b · ZIP 84093 · elevation 1520′ · NOAA & USDA data

Sandy is in USDA hardiness zone 7b (winters can dip to 5 to 10°F), with a growing season of about 174 days between the average last spring frost (April 29) and first fall frost (October 22). The warmest month is July (avg high 90.7°F); the coldest is January (avg low 22.8°F). It averages 24.3″ of precipitation a year and 81.9″ 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 5 to 10°F

Last spring frost

April 29

avg (50% prob, 32°F)

First fall frost

October 22

avg (50% prob, 32°F)

Growing season

174 days

frost-free window

Warmest month

July

avg high 90.7°F

Month-by-month typical weather in Sandy

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Cottonwood Weir, UT (2.9 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	38.1	22.8	30.4	2.2	17
February	44.1	27	35.6	2.3	18.4
March	53.9	34.2	44.1	2.7	7.6
April	60.7	39.5	50.1	3.3	5.6
May	70.6	48.2	59.4	2.8	0.3
June	81.9	57.3	69.6	1.4	0
July	90.7	67.5	79.1	0.6	0
August	88.6	65.9	77.3	0.9	0
September	78.7	56.4	67.6	1.6	0
October	64.2	43.4	53.8	2.1	1.5
November	49.1	31.5	40.3	2.1	8.2
December	38.3	23.1	30.7	2.4	23.3

What to plant when in Sandy

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 18 · Transplant out: May 6
Peppers	warm	Start seeds indoors: March 4 · Transplant out: May 13
Cucumbers	warm	Direct sow: May 6
Zucchini / squash	warm	Direct sow: May 6
Bush beans	warm	Direct sow: May 6
Sweet corn	warm	Direct sow: May 6
Basil	warm	Transplant out: May 6
Peas	cool	Sow (spring): March 25 · Sow (fall): August 27
Spinach	cool	Sow (spring): March 18 · Sow (fall): August 27
Lettuce	cool	Sow (spring): April 1 · Sow (fall): August 27
Kale	cool	Transplant (spring): April 8 · Sow (fall): August 13
Broccoli	cool	Transplant (spring): April 15
Carrots	cool	Sow (spring): April 8 · Sow (fall): August 13
Onions	cool	Transplant (spring): April 1
Potatoes	cool	Plant seed potatoes: April 15
Radishes	cool	Sow (spring): April 1 · Sow (fall): September 10

Dates are computed from Sandy'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

South Jordan, UT West Jordan, UT Draper, UT Salt Lake City, UT Riverton, UT Lehi, UT Bountiful, UT Orem, UT

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 — Cottonwood Weir, UT, 2.9 mi (confidence: high). Monthly weather normals: Cottonwood Weir, UT, 2.9 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.