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🍂 First Frost Dates for Wall, South Dakota 57790

The first 36°F frost date is 30% likely to be on Sep 14. (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 Wall, SD 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 6
20% chanceSep 11
30% chanceSep 14
40% chanceSep 17
50% chanceSep 19
60% chanceSep 22
70% chanceSep 24
80% chanceSep 27
90% chanceOct 1
Probability of light freeze (32°F) on or before...
10% chanceSep 14
20% chanceSep 19
30% chanceSep 22
40% chanceSep 25
50% chanceSep 28
60% chanceSep 30
70% chanceOct 3
80% chanceOct 6
90% chanceOct 10
Probability of moderate freeze (28°F) on or before...
10% chanceSep 22
20% chanceSep 27
30% chanceOct 1
40% chanceOct 3
50% chanceOct 6
60% chanceOct 9
70% chanceOct 12
80% chanceOct 16
90% chanceOct 20
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 30
20% chanceOct 5
30% chanceOct 9
40% chanceOct 13
50% chanceOct 16
60% chanceOct 19
70% chanceOct 22
80% chanceOct 25
90% chanceOct 29
Probability of hard freeze (20°F) on or before...
10% chanceOct 10
20% chanceOct 15
30% chanceOct 18
40% chanceOct 21
50% chanceOct 24
60% chanceOct 27
70% chanceOct 30
80% chanceNov 2
90% chanceNov 8
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 17
20% chanceOct 22
30% chanceOct 25
40% chanceOct 29
50% chanceNov 1
60% chanceNov 4
70% chanceNov 8
80% chanceNov 11
90% chanceNov 17

Agricultural climatic data from weather station: WASTA (USC00398911)

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