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🍂 First Frost Dates for Roseglen, North Dakota 58775

The first 36°F frost date is 30% likely to be on Sep 11. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 20. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Roseglen, 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 2
20% chanceSep 8
30% chanceSep 11
40% chanceSep 14
50% chanceSep 17
60% chanceSep 19
70% chanceSep 21
80% chanceSep 24
90% chanceSep 28
Probability of light freeze (32°F) on or before...
10% chanceSep 13
20% chanceSep 17
30% chanceSep 20
40% chanceSep 23
50% chanceSep 25
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 3
60% chanceOct 6
70% chanceOct 9
80% chanceOct 12
90% chanceOct 17
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 29
20% chanceOct 3
30% chanceOct 6
40% chanceOct 10
50% chanceOct 12
60% chanceOct 15
70% chanceOct 18
80% chanceOct 21
90% chanceOct 25
Probability of hard freeze (20°F) on or before...
10% chanceOct 6
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 19
30% chanceOct 23
40% chanceOct 26
50% chanceOct 30
60% chanceNov 1
70% chanceNov 5
80% chanceNov 9
90% chanceNov 14

Agricultural climatic data from weather station: GARRISON (USW00094041)

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