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🍂 First Frost Dates for Stehekin, Washington 98852

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

The first 32°F light freeze date is 30% likely to be on Oct 12. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Stehekin, WA 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% chanceSep 21
20% chanceSep 27
30% chanceSep 30
40% chanceOct 2
50% chanceOct 4
60% chanceOct 6
70% chanceOct 9
80% chanceOct 12
90% chanceOct 16
Probability of light freeze (32°F) on or before...
10% chanceOct 3
20% chanceOct 8
30% chanceOct 12
40% chanceOct 15
50% chanceOct 17
60% chanceOct 19
70% chanceOct 22
80% chanceOct 25
90% chanceOct 31
Probability of moderate freeze (28°F) on or before...
10% chanceOct 18
20% chanceOct 22
30% chanceOct 26
40% chanceOct 29
50% chanceOct 31
60% chanceNov 3
70% chanceNov 7
80% chanceNov 12
90% chanceNov 19
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 29
20% chanceNov 3
30% chanceNov 9
40% chanceNov 14
50% chanceNov 20
60% chanceNov 25
70% chanceNov 30
80% chanceDec 4
90% chanceDec 10
Probability of hard freeze (20°F) on or before...
10% chanceNov 12
20% chanceNov 22
30% chanceNov 29
40% chanceDec 3
50% chanceDec 6
60% chanceDec 10
70% chanceDec 15
80% chanceDec 21
90% chanceDec 28
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 29
20% chanceDec 5
30% chanceDec 10
40% chanceDec 15
50% chanceDec 20
60% chanceDec 26
70% chanceDec 31
80% chanceJan 7
90% chanceJan 21

Agricultural climatic data from weather station: STEHEKIN 4 NW (USC00458059)

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