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🍂 First Frost Dates for Hettinger, North Dakota 58639

The first 36°F frost date is 30% likely to be on Sep 2. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 10. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Hettinger, 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% chanceAug 24
20% chanceAug 30
30% chanceSep 2
40% chanceSep 5
50% chanceSep 8
60% chanceSep 10
70% chanceSep 13
80% chanceSep 16
90% chanceSep 20
Probability of light freeze (32°F) on or before...
10% chanceSep 3
20% chanceSep 7
30% chanceSep 10
40% chanceSep 13
50% chanceSep 16
60% chanceSep 19
70% chanceSep 21
80% chanceSep 24
90% chanceSep 28
Probability of moderate freeze (28°F) on or before...
10% chanceSep 10
20% chanceSep 14
30% chanceSep 18
40% chanceSep 21
50% chanceSep 24
60% chanceSep 27
70% chanceSep 30
80% chanceOct 3
90% chanceOct 7
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 17
20% chanceSep 23
30% chanceSep 27
40% chanceSep 30
50% chanceOct 3
60% chanceOct 6
70% chanceOct 9
80% chanceOct 13
90% chanceOct 18
Probability of hard freeze (20°F) on or before...
10% chanceSep 26
20% chanceOct 2
30% chanceOct 6
40% chanceOct 10
50% chanceOct 13
60% chanceOct 16
70% chanceOct 19
80% chanceOct 22
90% chanceOct 27
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 7
20% chanceOct 13
30% chanceOct 17
40% chanceOct 20
50% chanceOct 23
60% chanceOct 26
70% chanceOct 29
80% chanceNov 1
90% chanceNov 8

Agricultural climatic data from weather station: HETTINGER MUNI AP (USW00094038)

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