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🍂 First Frost Dates for Trenton, North Dakota 58853

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 22. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Trenton, ND are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

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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 28
Probability of light freeze (32°F) on or before...
10% chanceSep 14
20% chanceSep 19
30% chanceSep 22
40% chanceSep 24
50% chanceSep 26
60% chanceSep 28
70% chanceSep 30
80% chanceOct 3
90% chanceOct 7
Probability of moderate freeze (28°F) on or before...
10% chanceSep 21
20% chanceSep 25
30% chanceSep 28
40% chanceOct 1
50% chanceOct 4
60% chanceOct 7
70% chanceOct 10
80% chanceOct 13
90% chanceOct 17
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 28
20% chanceOct 3
30% chanceOct 7
40% chanceOct 10
50% chanceOct 13
60% chanceOct 16
70% chanceOct 18
80% chanceOct 22
90% chanceOct 26
Probability of hard freeze (20°F) on or before...
10% chanceOct 5
20% chanceOct 11
30% chanceOct 14
40% chanceOct 18
50% chanceOct 20
60% chanceOct 23
70% chanceOct 26
80% chanceOct 29
90% chanceNov 3
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 13
20% chanceOct 18
30% chanceOct 22
40% chanceOct 25
50% chanceOct 28
60% chanceOct 31
70% chanceNov 4
80% chanceNov 8
90% chanceNov 14

Agricultural climatic data from weather station: WILLISTON EXP FARM (USC00329430)

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