🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Jacksonville, Florida 32209

The first 36°F frost date is 30% likely to be on Nov 13. (See detailed probabilities below.)

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

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Jacksonville, FL 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% chanceNov 4
20% chanceNov 9
30% chanceNov 13
40% chanceNov 17
50% chanceNov 21
60% chanceNov 25
70% chanceNov 30
80% chanceDec 4
90% chanceDec 10
Probability of light freeze (32°F) on or before...
10% chanceNov 15
20% chanceNov 21
30% chanceNov 26
40% chanceDec 1
50% chanceDec 4
60% chanceDec 8
70% chanceDec 13
80% chanceDec 20
90% chanceJan 1
Probability of moderate freeze (28°F) on or before...
10% chanceNov 29
20% chanceDec 4
30% chanceDec 8
40% chanceDec 13
50% chanceDec 19
60% chanceDec 25
70% chanceJan 1
80% chanceJan 8
90% chanceJan 21
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 6
20% chanceDec 13
30% chanceDec 20
40% chanceDec 26
50% chanceJan 1
60% chanceJan 5
70% chanceJan 12
80% chanceJan 21
90% chanceFeb 1
Probability of hard freeze (20°F) on or before...
10% chanceDec 12
20% chanceDec 21
30% chanceDec 28
40% chanceJan 1
50% chanceJan 4
60% chanceJan 10
70% chanceJan 17
80% chanceJan 24
90% chanceFeb 2
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 18
20% chanceDec 25
30% chanceDec 31
40% chanceJan 2
50% chanceJan 5
60% chanceJan 9
70% chanceJan 15
80% chanceJan 20
90% chanceJan 25

Agricultural climatic data from weather station: JACKSONVILLE (USW00013889)

Back to Weather Calendar