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When to Plant Cantaloupe in Morgan County, UT

Morgan County, Utah Zone 6a May

May to-do list for Morgan County, Utah

A quick May briefing for Morgan County, Utah gardeners — what's urgent, what's next, and what can wait.

Avg. last frost June 17
Avg. first frost August 31
Soil temp (4") 40°F
Watering High
Pest pressure Low
Daylight 14.3 hrs

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Cantaloupe is a sweet, aromatic melon with salmon-colored flesh and a netted rind. It requires a long, warm growing season and is the quintessential summer fruit.

Morgan County, Utah is in USDA Zone 6a. The average last spring frost is June 17 and the first fall frost is August 31, giving you a growing season of approximately 75 days.

At an elevation of 6,439 feet, Morgan County receives approximately 14.4 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Cantaloupe to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Cantaloupe successfully. Mulch heavily to conserve soil moisture.

Morgan County, UT (Zone 6a) Very short season
75 days
Last Spring Frost June 17
75 growing days
First Fall Frost August 31

Morgan County Soil Profile

Soil Type

Loam

Soil pH

6.5-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Jul 1 🍅 Harvest: Sep 9 – Oct 14
Recommended (50%) ✗ May not fit
Transplant: Jul 8 🍅 Harvest: Sep 16 – Oct 21
Safe Start (90%) ✗ May not fit
Transplant: Jul 15 🍅 Harvest: Sep 23 – Oct 28

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Morgan County

How your county's soil matches Cantaloupe's growing requirements.

Soil pH

Your soil pH (6.5–8.1) is more alkaline than Cantaloupe prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Morgan County is excellent for Cantaloupe — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Cantaloupe.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Cantaloupe.

How to Plant Cantaloupe

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.8″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 708 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cantaloupe

Cantaloupe needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Cantaloupe Needs Rainfall You Supplement Action
Jan 1.1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.8" 0" ❄️ Dormant
Jun 5.6" 0.9" 4.7" 🚿 Regular watering
Jul 5.6" 1.5" 4.1" 🚿 Regular watering
Aug 5.6" 1.4" 4.2" 🚿 Regular watering
Sep 1.2" 0" ❄️ Dormant
Oct 1.1" 0" ❄️ Dormant
Nov 1" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Aug in Morgan County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cantaloupe Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Cantaloupe needs ~1,040 GDD — county provides 975 GDD Tight fit

Cantaloupe Planting Timeline — Morgan County, UT

Cantaloupe Planting Calendar

Activity When Date Range
Transplant Outdoors July 8 Jul 8 – Jul 22
Harvest September 16 Sep 16 – Oct 21

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May
June
July Transplant Outdoors
August
September Harvest
October Harvest
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

75 days in Morgan County

Growing Tips for Cantaloupe in Morgan County

Direct sow Cantaloupe outdoors after June 17 in Morgan County when soil has warmed and frost danger has passed.

Your 75.0-day growing season in Morgan County is tight for Cantaloupe (70.0-90.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Cantaloupe in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

Morgan County receives only 14" of rain annually. Cantaloupe needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 3-4 weeks early or direct sow on warm mounds. Reduce watering as fruits ripen. Harvest when stem slips easily from the fruit with gentle pressure.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cantaloupe in Morgan County, UT?

Morgan County is in Zone 6a with an average last frost of June 17. Plan your Cantaloupe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Morgan County, UT?

Morgan County, Utah is in USDA Hardiness Zone 6a. The average last spring frost is June 17 and first fall frost is August 31.

🌱

Your Morgan County Garden Planner — Free

A 24-page printable planner built for Morgan County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Morgan County, UT. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.