When is the last frost in Ogden, UT?

The average last spring frost (50% probability of 32°F) in Ogden is around April 22, based on NOAA/NCEI 1991–2020 normals at the Ogden Sugar Factory, UT station (0.9 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 Ogden?

The average first fall frost in Ogden, UT is around October 18, giving roughly a 177-day frost-free growing season.

What planting zone is Ogden, UT?

Ogden 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 Ogden?

In Ogden, UT the warmest month is July (avg high 94.7°F) and the coldest is January (avg low 20.2°F). It averages about 18.8″ of precipitation a year.

Home › Utah › Ogden

Ogden, UT Planting Calendar & Frost Dates

USDA hardiness zone 7a · ZIP 84401 · elevation 1305′ · NOAA & USDA data

Ogden is in USDA hardiness zone 7a (winters can dip to 0 to 5°F), with a growing season of about 177 days between the average last spring frost (April 22) and first fall frost (October 18). The warmest month is July (avg high 94.7°F); the coldest is January (avg low 20.2°F). It averages 18.8″ of precipitation a year. 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 22

avg (50% prob, 32°F)

First fall frost

October 18

avg (50% prob, 32°F)

Growing season

177 days

frost-free window

Warmest month

July

avg high 94.7°F

Month-by-month typical weather in Ogden

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Ogden Sugar Factory, UT (0.9 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	38	20.2	29.1	2.4	–
February	44.2	24.6	34.4	1.7	–
March	55.9	32.4	44.1	1.7	–
April	63	38.5	50.8	1.9	–
May	73.8	46.6	60.2	2	–
June	85.5	54.9	70.2	1.5	–
July	94.7	62	78.3	0.6	–
August	93.9	59.5	76.7	0.6	–
September	80.8	50.9	65.8	1.3	–
October	66.5	38.8	52.7	1.6	–
November	50.4	28.7	39.5	1.5	–
December	38.6	21.8	30.2	2.1	–

What to plant when in Ogden

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 11 · Transplant out: April 29
Peppers	warm	Start seeds indoors: February 25 · Transplant out: May 6
Cucumbers	warm	Direct sow: April 29
Zucchini / squash	warm	Direct sow: April 29
Bush beans	warm	Direct sow: April 29
Sweet corn	warm	Direct sow: April 29
Basil	warm	Transplant out: April 29
Peas	cool	Sow (spring): March 18 · Sow (fall): August 23
Spinach	cool	Sow (spring): March 11 · Sow (fall): August 23
Lettuce	cool	Sow (spring): March 25 · Sow (fall): August 23
Kale	cool	Transplant (spring): April 1 · Sow (fall): August 9
Broccoli	cool	Transplant (spring): April 8
Carrots	cool	Sow (spring): April 1 · Sow (fall): August 9
Onions	cool	Transplant (spring): March 25
Potatoes	cool	Plant seed potatoes: April 8
Radishes	cool	Sow (spring): March 25 · Sow (fall): September 6

Dates are computed from Ogden'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 Utah

Roy, UT Layton, UT Bountiful, UT Salt Lake City, UT Logan, UT West Jordan, UT Sandy, UT South 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 — Ogden Sugar Factory, UT, 0.9 mi (confidence: high). Monthly weather normals: Ogden Sugar Factory, UT, 0.9 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.