When is the last frost in Provo, UT?

The average last spring frost (50% probability of 32°F) in Provo is around April 18, based on NOAA/NCEI 1991–2020 normals at the Provo Byu, UT station (2.5 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 Provo?

The average first fall frost in Provo, UT is around October 21, giving roughly a 185-day frost-free growing season.

What planting zone is Provo, UT?

Provo 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 Provo?

In Provo, UT the warmest month is July (avg high 95.2°F) and the coldest is January (avg low 23.8°F). It averages about 17.2″ of precipitation a year and 44.9″ of snow.

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Provo, UT Planting Calendar & Frost Dates

USDA hardiness zone 7a · ZIP 84606 · elevation 1393′ · NOAA & USDA data

Provo is in USDA hardiness zone 7a (winters can dip to 0 to 5°F), with a growing season of about 185 days between the average last spring frost (April 18) and first fall frost (October 21). The warmest month is July (avg high 95.2°F); the coldest is January (avg low 23.8°F). It averages 17.2″ of precipitation a year and 44.9″ 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 0 to 5°F

Last spring frost

April 18

avg (50% prob, 32°F)

First fall frost

October 21

avg (50% prob, 32°F)

Growing season

185 days

frost-free window

Warmest month

July

avg high 95.2°F

Month-by-month typical weather in Provo

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Provo Byu, UT (2.5 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	41.2	23.8	32.5	2	12.5
February	47.6	27.5	37.5	1.6	8.7
March	58.4	34.6	46.5	1.6	4
April	65.6	39.7	52.7	1.9	3.1
May	75.7	47.4	61.6	2	0.2
June	87.2	55	71.1	0.9	0
July	95.2	62.3	78.8	0.5	0
August	92.9	61	77	0.7	0
September	83.1	52	67.5	1.2	0
October	68.5	40.9	54.7	1.6	0.6
November	53.2	31.6	42.4	1.4	4.6
December	41.4	24.4	32.9	1.8	11.2

What to plant when in Provo

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 7 · Transplant out: April 25
Peppers	warm	Start seeds indoors: February 21 · Transplant out: May 2
Cucumbers	warm	Direct sow: April 25
Zucchini / squash	warm	Direct sow: April 25
Bush beans	warm	Direct sow: April 25
Sweet corn	warm	Direct sow: April 25
Basil	warm	Transplant out: April 25
Peas	cool	Sow (spring): March 14 · Sow (fall): August 26
Spinach	cool	Sow (spring): March 7 · Sow (fall): August 26
Lettuce	cool	Sow (spring): March 21 · Sow (fall): August 26
Kale	cool	Transplant (spring): March 28 · Sow (fall): August 12
Broccoli	cool	Transplant (spring): April 4
Carrots	cool	Sow (spring): March 28 · Sow (fall): August 12
Onions	cool	Transplant (spring): March 21
Potatoes	cool	Plant seed potatoes: April 4
Radishes	cool	Sow (spring): March 21 · Sow (fall): September 9

Dates are computed from Provo'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

Orem, UT Spanish Fork, UT Lehi, UT Draper, UT Riverton, UT Sandy, UT South Jordan, UT West Jordan, 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 — Provo Byu, UT, 2.5 mi (confidence: high). Monthly weather normals: Provo Byu, UT, 2.5 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.