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🍂 First Frost Dates for Hydaburg, Alaska 99922

The first 36°F frost date is 30% likely to be on Oct 10. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 25. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Hydaburg, AK 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 1
20% chanceOct 6
30% chanceOct 10
40% chanceOct 14
50% chanceOct 17
60% chanceOct 20
70% chanceOct 23
80% chanceOct 27
90% chanceNov 1
Probability of light freeze (32°F) on or before...
10% chanceOct 15
20% chanceOct 21
30% chanceOct 25
40% chanceOct 29
50% chanceNov 1
60% chanceNov 4
70% chanceNov 8
80% chanceNov 13
90% chanceNov 21
Probability of moderate freeze (28°F) on or before...
10% chanceOct 31
20% chanceNov 6
30% chanceNov 11
40% chanceNov 15
50% chanceNov 20
60% chanceNov 25
70% chanceNov 30
80% chanceDec 5
90% chanceDec 17
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 12
20% chanceNov 21
30% chanceNov 28
40% chanceDec 2
50% chanceDec 8
60% chanceDec 15
70% chanceDec 24
80% chanceJan 1
90% chanceJan 14
Probability of hard freeze (20°F) on or before...
10% chanceNov 23
20% chanceDec 1
30% chanceDec 10
40% chanceDec 18
50% chanceDec 25
60% chanceJan 1
70% chanceJan 8
80% chanceJan 18
90% chanceFeb 4
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 1
20% chanceDec 11
30% chanceDec 21
40% chanceDec 29
50% chanceJan 1
60% chanceJan 10
70% chanceJan 18
80% chanceJan 31
90% chanceFeb 16

Agricultural climatic data from weather station: CRAIG (USC00502227)

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