🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Dayville, Oregon 97825

The first 36°F frost date is 30% likely to be on Sep 12. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 26. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Dayville, OR 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 31
20% chanceSep 7
30% chanceSep 12
40% chanceSep 15
50% chanceSep 19
60% chanceSep 22
70% chanceSep 25
80% chanceSep 28
90% chanceOct 3
Probability of light freeze (32°F) on or before...
10% chanceSep 16
20% chanceSep 22
30% chanceSep 26
40% chanceSep 29
50% chanceOct 2
60% chanceOct 5
70% chanceOct 8
80% chanceOct 12
90% chanceOct 18
Probability of moderate freeze (28°F) on or before...
10% chanceSep 29
20% chanceOct 3
30% chanceOct 7
40% chanceOct 11
50% chanceOct 15
60% chanceOct 18
70% chanceOct 22
80% chanceOct 26
90% chanceOct 31
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 7
20% chanceOct 15
30% chanceOct 20
40% chanceOct 24
50% chanceOct 28
60% chanceOct 31
70% chanceNov 4
80% chanceNov 11
90% chanceNov 19
Probability of hard freeze (20°F) on or before...
10% chanceOct 21
20% chanceOct 28
30% chanceNov 2
40% chanceNov 8
50% chanceNov 14
60% chanceNov 19
70% chanceNov 25
80% chanceDec 1
90% chanceDec 10
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 31
20% chanceNov 9
30% chanceNov 17
40% chanceNov 25
50% chanceDec 1
60% chanceDec 6
70% chanceDec 12
80% chanceDec 21
90% chanceDec 31

Agricultural climatic data from weather station: DAYVILLE 8 NW (USC00352173)

Back to Weather Calendar