🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Glenfield, North Dakota 58443

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

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

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Glenfield, ND 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 5
20% chanceSep 10
30% chanceSep 13
40% chanceSep 16
50% chanceSep 18
60% chanceSep 20
70% chanceSep 22
80% chanceSep 25
90% chanceSep 29
Probability of light freeze (32°F) on or before...
10% chanceSep 15
20% chanceSep 19
30% chanceSep 21
40% chanceSep 24
50% chanceSep 26
60% chanceSep 28
70% chanceOct 1
80% chanceOct 4
90% chanceOct 8
Probability of moderate freeze (28°F) on or before...
10% chanceSep 22
20% chanceSep 26
30% chanceSep 29
40% chanceOct 2
50% chanceOct 4
60% chanceOct 6
70% chanceOct 10
80% chanceOct 13
90% chanceOct 18
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 1
20% chanceOct 4
30% chanceOct 7
40% chanceOct 11
50% chanceOct 13
60% chanceOct 16
70% chanceOct 19
80% chanceOct 23
90% chanceOct 27
Probability of hard freeze (20°F) on or before...
10% chanceOct 8
20% chanceOct 13
30% chanceOct 17
40% chanceOct 20
50% chanceOct 23
60% chanceOct 26
70% chanceOct 29
80% chanceNov 1
90% chanceNov 6
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 17
20% chanceOct 22
30% chanceOct 26
40% chanceOct 29
50% chanceNov 1
60% chanceNov 3
70% chanceNov 6
80% chanceNov 10
90% chanceNov 16

Agricultural climatic data from weather station: MC HENRY 3W (USC00325730)

Back to Weather Calendar