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🌷 Last Frost Dates for Herreid, South Dakota 57632

The last 36°F Spring frost date is 30% likely to be on May 23. (See detailed probabilities below.)

The last 32°F light freeze date is 30% likely to be on May 13. (See detailed probabilities below.)

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Herreid, 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 Last Frost Date?

The last spring frost signals when your area is safe from freezing temperatures. Tender plants can now grow outdoors without cold damage! This marks the beginning of the growing season. Last spring frost serves as your essential starting point for planting warm-season crops. It's also time to remove winter protection from your perennials. Enjoy the longer days and warmer weather!

How to use the Last Frost Date?

Start seeds indoors several weeks before your last frost date. This gives plants time to reach transplanting size when weather permits. Plan your outdoor planting schedule around your area's average last frost date. Plant some crops before and some after this date to protect against weather changes. Look for spots in your yard where frost stays longer or disappears earlier. Create your own frost map to use all available growing space and extend your season. Keep watching your local weather forecast to catch any surprise late frosts.

Last Frost Date Probabilities

Probability of frost (36°F) on or after…
10% chanceJun 1
20% chanceMay 27
30% chanceMay 23
40% chanceMay 19
50% chanceMay 16
60% chanceMay 14
70% chanceMay 11
80% chanceMay 8
90% chanceMay 4
Probability of light freeze (32°F) on or after…
10% chanceMay 21
20% chanceMay 16
30% chanceMay 13
40% chanceMay 10
50% chanceMay 7
60% chanceMay 5
70% chanceMay 2
80% chanceApr 30
90% chanceApr 26
Probability of moderate freeze (28°F) on or after…
10% chanceMay 13
20% chanceMay 8
30% chanceMay 4
40% chanceMay 1
50% chanceApr 29
60% chanceApr 26
70% chanceApr 23
80% chanceApr 20
90% chanceApr 15
Probability of moderate hard freeze (24°F) on or after…
10% chanceMay 3
20% chanceApr 29
30% chanceApr 25
40% chanceApr 22
50% chanceApr 19
60% chanceApr 17
70% chanceApr 14
80% chanceApr 10
90% chanceApr 6
Probability of hard freeze (20°F) on or after…
10% chanceApr 24
20% chanceApr 19
30% chanceApr 16
40% chanceApr 13
50% chanceApr 10
60% chanceApr 7
70% chanceApr 5
80% chanceApr 2
90% chanceMar 29
Probability of severe hard freeze (16°F) on or after…
10% chanceApr 16
20% chanceApr 11
30% chanceApr 8
40% chanceApr 5
50% chanceApr 3
60% chanceMar 31
70% chanceMar 28
80% chanceMar 24
90% chanceMar 18

Agricultural climatic data from weather station: POLLOCK (USC00396712)

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