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🍂 First Frost Dates for Hayden, Arizona 85135

The first 36°F frost date is 30% likely to be on Oct 27. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 6. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Hayden, 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 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% chanceOct 17
20% chanceOct 22
30% chanceOct 27
40% chanceOct 30
50% chanceNov 2
60% chanceNov 5
70% chanceNov 8
80% chanceNov 12
90% chanceNov 18
Probability of light freeze (32°F) on or before...
10% chanceOct 26
20% chanceNov 1
30% chanceNov 6
40% chanceNov 11
50% chanceNov 14
60% chanceNov 17
70% chanceNov 20
80% chanceNov 24
90% chanceNov 30
Probability of moderate freeze (28°F) on or before...
10% chanceNov 8
20% chanceNov 15
30% chanceNov 19
40% chanceNov 23
50% chanceNov 27
60% chanceNov 30
70% chanceDec 3
80% chanceDec 6
90% chanceDec 11
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 23
20% chanceNov 28
30% chanceDec 2
40% chanceDec 5
50% chanceDec 9
60% chanceDec 13
70% chanceDec 17
80% chanceDec 21
90% chanceDec 27
Probability of hard freeze (20°F) on or before...
10% chanceDec 1
20% chanceDec 8
30% chanceDec 13
40% chanceDec 18
50% chanceDec 24
60% chanceDec 28
70% chanceJan 2
80% chanceJan 9
90% chanceJan 25
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 11
20% chanceDec 14
30% chanceDec 17
40% chanceDec 23
50% chanceDec 29
60% chanceJan 1
70% chanceJan 5
80% chanceJan 12
90% chanceFeb 2

Agricultural climatic data from weather station: GLOBE (USC00023505)

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