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🍂 First Frost Dates for Darrington, Washington 98241

The first 36°F frost date is 30% likely to be on Oct 6. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 22. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Darrington, 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 30
20% chanceOct 3
30% chanceOct 6
40% chanceOct 9
50% chanceOct 13
60% chanceOct 15
70% chanceOct 18
80% chanceOct 22
90% chanceOct 28
Probability of light freeze (32°F) on or before...
10% chanceOct 13
20% chanceOct 18
30% chanceOct 22
40% chanceOct 26
50% chanceOct 29
60% chanceNov 1
70% chanceNov 4
80% chanceNov 9
90% chanceNov 17
Probability of moderate freeze (28°F) on or before...
10% chanceOct 27
20% chanceNov 1
30% chanceNov 8
40% chanceNov 14
50% chanceNov 20
60% chanceNov 25
70% chanceDec 1
80% chanceDec 6
90% chanceDec 16
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 12
20% chanceNov 23
30% chanceDec 1
40% chanceDec 7
50% chanceDec 13
60% chanceDec 20
70% chanceDec 27
80% chanceJan 1
90% chanceJan 19
Probability of hard freeze (20°F) on or before...
10% chanceDec 1
20% chanceDec 10
30% chanceDec 19
40% chanceDec 26
50% chanceDec 30
60% chanceJan 3
70% chanceJan 13
80% chanceJan 25
90% chanceFeb 6
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 8
20% chanceDec 16
30% chanceDec 24
40% chanceDec 29
50% chanceJan 1
60% chanceJan 5
70% chanceJan 16
80% chanceJan 29
90% chanceFeb 9

Agricultural climatic data from weather station: BARING (USC00450456)

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