🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for South Bend, Washington 98586

The first 36°F frost date is 30% likely to be on Sep 17. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 2. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for South Bend, WA 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% chanceSep 7
20% chanceSep 12
30% chanceSep 17
40% chanceSep 20
50% chanceSep 24
60% chanceSep 27
70% chanceOct 1
80% chanceOct 4
90% chanceOct 9
Probability of light freeze (32°F) on or before...
10% chanceSep 24
20% chanceSep 30
30% chanceOct 2
40% chanceOct 6
50% chanceOct 10
60% chanceOct 14
70% chanceOct 19
80% chanceOct 24
90% chanceNov 1
Probability of moderate freeze (28°F) on or before...
10% chanceOct 9
20% chanceOct 17
30% chanceOct 22
40% chanceOct 28
50% chanceNov 1
60% chanceNov 5
70% chanceNov 11
80% chanceNov 19
90% chanceDec 1
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 29
20% chanceNov 4
30% chanceNov 11
40% chanceNov 18
50% chanceNov 26
60% chanceDec 2
70% chanceDec 9
80% chanceDec 18
90% chanceDec 29
Probability of hard freeze (20°F) on or before...
10% chanceNov 12
20% chanceNov 25
30% chanceDec 3
40% chanceDec 11
50% chanceDec 19
60% chanceDec 27
70% chanceJan 2
80% chanceJan 17
90% chanceFeb 5
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 28
20% chanceDec 8
30% chanceDec 17
40% chanceDec 24
50% chanceDec 30
60% chanceJan 3
70% chanceJan 15
80% chanceJan 30
90% chanceFeb 10

Agricultural climatic data from weather station: RAYMOND 2 S (USC00456914)

Back to Weather Calendar