🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Niota, Illinois 62358

The first 36°F frost date is 30% likely to be on Oct 9. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 21. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Niota, IL 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 30
20% chanceOct 5
30% chanceOct 9
40% chanceOct 12
50% chanceOct 15
60% chanceOct 18
70% chanceOct 21
80% chanceOct 24
90% chanceOct 28
Probability of light freeze (32°F) on or before...
10% chanceOct 11
20% chanceOct 17
30% chanceOct 21
40% chanceOct 24
50% chanceOct 27
60% chanceOct 30
70% chanceNov 1
80% chanceNov 4
90% chanceNov 9
Probability of moderate freeze (28°F) on or before...
10% chanceOct 23
20% chanceOct 29
30% chanceNov 1
40% chanceNov 3
50% chanceNov 6
60% chanceNov 9
70% chanceNov 12
80% chanceNov 15
90% chanceNov 20
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 2
20% chanceNov 7
30% chanceNov 10
40% chanceNov 13
50% chanceNov 16
60% chanceNov 19
70% chanceNov 23
80% chanceNov 27
90% chanceDec 1
Probability of hard freeze (20°F) on or before...
10% chanceNov 10
20% chanceNov 15
30% chanceNov 20
40% chanceNov 24
50% chanceNov 27
60% chanceNov 30
70% chanceDec 2
80% chanceDec 6
90% chanceDec 12
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 19
20% chanceNov 25
30% chanceNov 29
40% chanceDec 1
50% chanceDec 4
60% chanceDec 8
70% chanceDec 11
80% chanceDec 16
90% chanceDec 21

Agricultural climatic data from weather station: FT MADISON (USC00133007)

Back to Weather Calendar