When is the last frost in Layton, UT?

The average last spring frost (50% probability of 32°F) in Layton is around April 29, based on NOAA/NCEI 1991–2020 normals at the Weber Basin Pump Plt 3, UT station (1.4 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 Layton?

The average first fall frost in Layton, UT is around October 20, giving roughly a 172-day frost-free growing season.

What planting zone is Layton, UT?

Layton 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 Layton?

In Layton, UT the warmest month is July (avg high 91.7°F) and the coldest is January (avg low 19.5°F). It averages about 26.2″ of precipitation a year and 22.8″ of snow.

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Layton, UT Planting Calendar & Frost Dates

USDA hardiness zone 7a · ZIP 84040 · elevation 1494′ · NOAA & USDA data

Layton is in USDA hardiness zone 7a (winters can dip to 0 to 5°F), with a growing season of about 172 days between the average last spring frost (April 29) and first fall frost (October 20). The warmest month is July (avg high 91.7°F); the coldest is January (avg low 19.5°F). It averages 26.2″ of precipitation a year and 22.8″ 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 0 to 5°F

Last spring frost

April 29

avg (50% prob, 32°F)

First fall frost

October 20

avg (50% prob, 32°F)

Growing season

172 days

frost-free window

Warmest month

July

avg high 91.7°F

Month-by-month typical weather in Layton

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Weber Basin Pump Plt 3, UT (1.4 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	36.8	19.5	28.2	2.7	3.9
February	42.2	23.9	33	2.5	4.1
March	50.9	32.2	41.6	2.7	1.7
April	57.6	36.7	47.1	3.1	0.1
May	69.3	45.7	57.5	3	0.2
June	79.6	52.6	66.1	1.7	0
July	91.7	63.9	77.8	0.8	0
August	87.2	61.5	74.4	1	0
September	77.8	51.2	64.5	1.7	0
October	61.8	40.5	51.1	2.3	0.2
November	47.6	29.6	38.6	2	1.3
December	35.9	20	27.9	2.5	11.3

What to plant when in Layton

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 25
Spinach	cool	Sow (spring): March 18 · Sow (fall): August 25
Lettuce	cool	Sow (spring): April 1 · Sow (fall): August 25
Kale	cool	Transplant (spring): April 8 · Sow (fall): August 11
Broccoli	cool	Transplant (spring): April 15
Carrots	cool	Sow (spring): April 8 · Sow (fall): August 11
Onions	cool	Transplant (spring): April 1
Potatoes	cool	Plant seed potatoes: April 15
Radishes	cool	Sow (spring): April 1 · Sow (fall): September 8

Dates are computed from Layton'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

Roy, UT Ogden, UT Bountiful, UT Salt Lake City, UT West Jordan, UT Sandy, UT South Jordan, UT Draper, 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 — Weber Basin Pump Plt 3, UT, 1.4 mi (confidence: high). Monthly weather normals: Weber Basin Pump Plt 3, UT, 1.4 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.