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🍂 First Frost Dates for Bisbee, Arizona 85603

The first 36°F frost date is 30% likely to be on Oct 20. (See detailed probabilities below.)

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

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Bisbee, 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 11
20% chanceOct 16
30% chanceOct 20
40% chanceOct 23
50% chanceOct 25
60% chanceOct 28
70% chanceNov 1
80% chanceNov 3
90% chanceNov 9
Probability of light freeze (32°F) on or before...
10% chanceOct 21
20% chanceOct 25
30% chanceOct 30
40% chanceNov 2
50% chanceNov 4
60% chanceNov 8
70% chanceNov 12
80% chanceNov 16
90% chanceNov 21
Probability of moderate freeze (28°F) on or before...
10% chanceOct 30
20% chanceNov 4
30% chanceNov 10
40% chanceNov 14
50% chanceNov 18
60% chanceNov 22
70% chanceNov 25
80% chanceNov 30
90% chanceDec 5
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 11
20% chanceNov 20
30% chanceNov 25
40% chanceNov 30
50% chanceDec 3
60% chanceDec 6
70% chanceDec 11
80% chanceDec 16
90% chanceDec 24
Probability of hard freeze (20°F) on or before...
10% chanceNov 25
20% chanceDec 3
30% chanceDec 9
40% chanceDec 15
50% chanceDec 20
60% chanceDec 26
70% chanceJan 1
80% chanceJan 8
90% chanceJan 22
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 2
20% chanceDec 13
30% chanceDec 20
40% chanceDec 26
50% chanceDec 31
60% chanceJan 4
70% chanceJan 9
80% chanceJan 18
90% chanceFeb 1

Agricultural climatic data from weather station: BISBEE 1WNW (USC00020775)

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