🌷 Your Ultimate Garden Calendar!

🌷 Last Frost Dates for Happy Jack, Arizona 86024

The last 36°F Spring frost date is 30% likely to be on Jun 22. (See detailed probabilities below.)

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

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Happy Jack, AZ 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 30
20% chanceJun 26
30% chanceJun 22
40% chanceJun 19
50% chanceJun 16
60% chanceJun 13
70% chanceJun 10
80% chanceJun 7
90% chanceJun 2
Probability of light freeze (32°F) on or after…
10% chanceJun 21
20% chanceJun 14
30% chanceJun 10
40% chanceJun 7
50% chanceJun 4
60% chanceJun 1
70% chanceMay 29
80% chanceMay 24
90% chanceMay 18
Probability of moderate freeze (28°F) on or after…
10% chanceJun 7
20% chanceJun 1
30% chanceMay 28
40% chanceMay 22
50% chanceMay 18
60% chanceMay 14
70% chanceMay 10
80% chanceMay 5
90% chanceApr 30
Probability of moderate hard freeze (24°F) on or after…
10% chanceMay 18
20% chanceMay 12
30% chanceMay 8
40% chanceMay 5
50% chanceMay 2
60% chanceApr 30
70% chanceApr 27
80% chanceApr 23
90% chanceApr 16
Probability of hard freeze (20°F) on or after…
10% chanceMay 5
20% chanceMay 1
30% chanceApr 27
40% chanceApr 22
50% chanceApr 18
60% chanceApr 14
70% chanceApr 10
80% chanceApr 5
90% chanceMar 31
Probability of severe hard freeze (16°F) on or after…
10% chanceApr 22
20% chanceApr 14
30% chanceApr 9
40% chanceApr 4
50% chanceMar 31
60% chanceMar 26
70% chanceMar 21
80% chanceMar 16
90% chanceMar 10

Agricultural climatic data from weather station: BLUE RIDGE RS (USC00020871)

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