🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Hope, Alaska 99605

The first 36°F frost date is 30% likely to be on Sep 2. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 17. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Hope, 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 24
20% chanceAug 30
30% chanceSep 2
40% chanceSep 5
50% chanceSep 9
60% chanceSep 12
70% chanceSep 15
80% chanceSep 19
90% chanceSep 24
Probability of light freeze (32°F) on or before...
10% chanceSep 8
20% chanceSep 13
30% chanceSep 17
40% chanceSep 20
50% chanceSep 23
60% chanceSep 25
70% chanceSep 28
80% chanceOct 1
90% chanceOct 4
Probability of moderate freeze (28°F) on or before...
10% chanceSep 20
20% chanceSep 25
30% chanceSep 28
40% chanceOct 1
50% chanceOct 2
60% chanceOct 5
70% chanceOct 7
80% chanceOct 10
90% chanceOct 14
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 30
20% chanceOct 3
30% chanceOct 6
40% chanceOct 9
50% chanceOct 12
60% chanceOct 14
70% chanceOct 16
80% chanceOct 19
90% chanceOct 22
Probability of hard freeze (20°F) on or before...
10% chanceOct 7
20% chanceOct 12
30% chanceOct 15
40% chanceOct 17
50% chanceOct 20
60% chanceOct 22
70% chanceOct 24
80% chanceOct 27
90% chanceOct 31
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 14
20% chanceOct 18
30% chanceOct 21
40% chanceOct 24
50% chanceOct 26
60% chanceOct 29
70% chanceOct 31
80% chanceNov 3
90% chanceNov 9

Agricultural climatic data from weather station: HOPE (USC00503720)

Back to Weather Calendar