🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Eielson Afb, Alaska 99702

The first 36°F frost date is 30% likely to be on Aug 22. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 1. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Eielson Afb, AK are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

Book Recommendations (ads!)

📚 Growing Under Cover: Techniques for a More Productive, Weather-Resistant, Pest-Free Vegetable Garden

📚 Greenhouse Gardening for Beginners: Step By Step Guide To Build A Year-Round Greenhouse And Grow Herbs, Organic Fruits And Vegetables, Plants, Flowers Plans & Ideas for Extending the Growing Season

📚 How to Garden Indoors & Grow Your Own Food Year Round: Ultimate Guide to Vertical, Container, and Hydroponic Gardening (Creative Homeowner) Vegetables, Herbs, DIY Projects, Composting, Lights, & More

📚 The Year-Round Vegetable Gardener: How to Grow Your Own Food 365 Days a Year, No Matter Where You Live

What is a First Frost Date?

The first fall frost signals the end of your local growing season. This date serves as an important deadline for gardeners and farmers. You'll need to complete harvesting before this point. Annuals and other tender plants will die back when frost hits, and perennial plants will enter their dormant phase for winter. Meanwhile, it's time to enjoy a cup of hot cocoa and a cozy sweater—and start planning your spring garden!

How to use the First Frost Date?

Watch your local weather forecasts in early fall to predict the first frost date. Harvest tender crops and protect vulnerable plants before frost arrives. For late-summer plantings, count backward from your area's average first frost date. This ensures your crops have enough time to mature. Keep track of when frost actually occurs in your garden each year. This helps you identify protected spots where the growing season might last longer.

First Frost Date Probabilities

Probability of frost (36°F) on or before...
10% chanceAug 14
20% chanceAug 18
30% chanceAug 22
40% chanceAug 24
50% chanceAug 27
60% chanceAug 29
70% chanceSep 1
80% chanceSep 4
90% chanceSep 9
Probability of light freeze (32°F) on or before...
10% chanceAug 24
20% chanceAug 29
30% chanceSep 1
40% chanceSep 4
50% chanceSep 7
60% chanceSep 10
70% chanceSep 13
80% chanceSep 17
90% chanceSep 22
Probability of moderate freeze (28°F) on or before...
10% chanceSep 3
20% chanceSep 9
30% chanceSep 13
40% chanceSep 16
50% chanceSep 19
60% chanceSep 21
70% chanceSep 24
80% chanceSep 27
90% chanceOct 1
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 13
20% chanceSep 19
30% chanceSep 22
40% chanceSep 25
50% chanceSep 28
60% chanceSep 30
70% chanceOct 2
80% chanceOct 5
90% chanceOct 9
Probability of hard freeze (20°F) on or before...
10% chanceSep 22
20% chanceSep 27
30% chanceSep 29
40% chanceOct 1
50% chanceOct 4
60% chanceOct 6
70% chanceOct 9
80% chanceOct 11
90% chanceOct 15
Probability of severe hard freeze (16°F) on or before...
10% chanceSep 28
20% chanceOct 1
30% chanceOct 4
40% chanceOct 7
50% chanceOct 9
60% chanceOct 12
70% chanceOct 14
80% chanceOct 16
90% chanceOct 20

Agricultural climatic data from weather station: EIELSON FLD (USC00502707)

Back to Weather Calendar