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When to Plant Acorn Squash in Albany County, WY

Albany County, Wyoming Zone 5b May

May in the garden — Albany County, Wyoming

Your garden in Albany County, Wyoming is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost May 29
Avg. first frost September 18
Soil temp (4") 38°F
Watering High
Pest pressure Low
Daylight 14.3 hrs
Get ahead of June
  • Transplants going out: acorn squash
  • Direct-sowing: acorn squash

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Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.

Albany County, Wyoming is in USDA Zone 5b. The average last spring frost is May 29 and the first fall frost is September 18, giving you a growing season of approximately 112 days.

At an elevation of 5,863 feet, Albany County receives approximately 17.8 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Acorn Squash to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Acorn Squash successfully. Mulch heavily to conserve soil moisture.

Albany County, WY (Zone 5b) Short season
112 days
Last Spring Frost May 29
112 growing days
First Fall Frost September 18
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Albany County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 19 Transplant: Jun 7 🍅 Harvest: Aug 30 – Oct 4
Recommended (50%) ✗ May not fit
Start indoors: Apr 24 Transplant: Jun 12 🍅 Harvest: Sep 4 – Oct 9
Safe Start (90%) ✗ May not fit
Start indoors: May 6 Transplant: Jun 24 🍅 Harvest: Sep 16 – Oct 21

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 Albany County

How your county's soil matches Acorn Squash's growing requirements.

Soil pH

Your soil pH (6.3–7.6) overlaps with Acorn Squash's range (5.5–7.0), though not a perfect match.

Soil Texture

The loam soil in Albany County is excellent for Acorn Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Acorn Squash

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

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.7″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 517 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Acorn Squash

Acorn Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Acorn Squash Needs Rainfall You Supplement Action
Jan 1.1" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 1.8" 0" ❄️ Dormant
May 4.8" 2.2" 2.6" 🚿 Regular watering
Jun 4.8" 1.2" 3.6" 🚿 Regular watering
Jul 4.8" 1.4" 3.4" 🚿 Regular watering
Aug 4.8" 2" 2.8" 🚿 Regular watering
Sep 4.8" 1.3" 3.5" 🚿 Regular watering
Oct 1.6" 0" ❄️ Dormant
Nov 1.4" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

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

Acorn Squash 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.

Acorn Squash needs ~900 GDD — county provides 1,120 GDD Good fit

Acorn Squash Planting Timeline — Albany County, WY

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors April 24 Apr 24 – May 8
Transplant Outdoors June 12 Jun 12 – Jun 26
Direct Sow June 5 Jun 5 – Jun 26
Harvest September 4 Sep 4 – Oct 9

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May Start Indoors
June Transplant Outdoors Direct Sow
July
August
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 1-2 times/week

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5b

📆 Growing Season

112 days in Albany County

Growing Tips for Acorn Squash in Albany County

Direct sow Acorn Squash outdoors after May 29 in Albany County when soil has warmed and frost danger has passed.

Your 112.0-day growing season in Albany County is tight for Acorn Squash (80.0-100.0 days to maturity). Start indoors and choose early-maturing varieties.

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

Albany County receives only 18" of rain annually. Acorn Squash needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Acorn Squash in Albany County, WY?

Albany County is in Zone 5b with an average last frost of May 29. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Albany County, WY?

Albany County, Wyoming is in USDA Hardiness Zone 5b. The average last spring frost is May 29 and first fall frost is September 18.

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Your Albany County Garden Planner — Free

A 24-page printable planner built for Albany County (Zone 5b). 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 Albany County, WY. 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.