When to plant Onion in Nome Census Area, AK
Nome Census Area sits in USDA Zone 3b. Plant Onion between May 27 (after last frost on June 3) and June 17. A second sowing from June 10 to June 24 extends the harvest into fall.
When to Plant Onion in Nome Census Area, AK
July in Nome Census Area, Alaska — your action list
Your garden in Nome Census Area, Alaska is working on a schedule, even when you're not. Here's where you should be this July.
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Start onion indoors
Your window is short. These crops want several weeks of indoor growth before they go outside.
Onions are a fundamental kitchen staple available in yellow, white, and red varieties. Choose long-day, short-day, or intermediate types based on your latitude.
Nome Census Area, Alaska is in USDA Zone 3b. The average last spring frost is June 3 and the first fall frost is September 2, giving you a growing season of approximately 91 days.
At an elevation of 2,593 feet, Nome Census Area receives approximately 39.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 61°F, so choose short-season varieties of Onion to ensure they mature before fall.
Nome Census Area Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.7
Drainage
Well Drained
Onion Planting Risk Windows
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 Nome Census Area
How your county's soil matches Onion's growing requirements.
Soil pH
Your soil pH (5.0–6.7) is more acidic than Onion prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Nome Census Area is excellent for Onion — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Onion.
Organic Matter
Organic matter is excellent (6.2%) — Onion will thrive.
How to Plant Onion
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Onion Water Budget
Monthly Watering Guide for Onion
Onion needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Onion Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 1.4" | 0" | ❄️ Dormant |
| Apr | — | 1.4" | 0" | ❄️ Dormant |
| May | — | 1.8" | 0" | ❄️ Dormant |
| Jun | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Jul | 4.3" | 5.2" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 6.1" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 6.5" | 0" | ✅ Rainfall sufficient |
| Oct | — | 4.8" | 0" | ❄️ Dormant |
| Nov | — | 3.2" | 0" | ❄️ Dormant |
| Dec | — | 2.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Nome Census Area). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Onion 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.
Onion Planting Timeline — Nome Census Area, AK
Onion Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 22 | Apr 22 – May 6 |
| Transplant Outdoors | June 3 | Jun 3 – Jun 17 |
| Direct Sow | May 27 | May 27 – Jun 17 |
| Harvest | September 2 | Sep 2 – Oct 7 |
| Fall Sowing | June 10 | Jun 10 – Jun 24 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Direct Sow |
| June | Transplant Outdoors Direct Sow Fall Sowing |
| July | — |
| August | — |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 3b
📆 Growing Season
91 days in Nome Census Area
Growing Tips for Onion in Nome Census Area
Direct sow Onion outdoors after June 03 in Nome Census Area when soil has warmed and frost danger has passed.
Your 91.0-day growing season in Nome Census Area is tight for Onion (90.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Onion in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 8-10 weeks before transplanting. Match day-length type to your latitude. Stop watering when tops begin to fall over and cure bulbs for 2-3 weeks before storage.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Onion in Other Locations
Frequently Asked Questions
When should I plant Onion in Nome Census Area, AK?
Nome Census Area is in Zone 3b with an average last frost of June 3. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Nome Census Area, AK?
Nome Census Area, Alaska is in USDA Hardiness Zone 3b. The average last spring frost is June 3 and first fall frost is September 2.
When should I plant Onion in Nome Census Area, AK?
In Nome Census Area, AK, plant Onion after the last frost (around June 3) and before the first frost (around September 2). Best results when soil holds above 50°F.
What growing zone is Nome Census Area, AK for Onion?
Nome Census Area sits in USDA Zone 3b. Onion grows reliably in zones 3a through 10b, so it's a good fit here.
Can Onion grow in Nome Census Area's climate?
Yes — Onion grows well in Nome Census Area's temperate climate. Nome Census Area averages a 91-day frost-free season, with last frost around June 3 and first frost around September 2.
Your Nome Census Area Garden Planner — Free
A 22-page printable planner built for Nome Census Area (Zone 3b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.