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🍂 First Frost Dates for Ravensdale, Washington 98051

The first 36°F frost date is 30% likely to be on Oct 12. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 31. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Ravensdale, 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% chanceOct 1
20% chanceOct 7
30% chanceOct 12
40% chanceOct 16
50% chanceOct 20
60% chanceOct 23
70% chanceOct 26
80% chanceOct 30
90% chanceNov 5
Probability of light freeze (32°F) on or before...
10% chanceOct 21
20% chanceOct 27
30% chanceOct 31
40% chanceNov 2
50% chanceNov 7
60% chanceNov 11
70% chanceNov 17
80% chanceNov 24
90% chanceDec 2
Probability of moderate freeze (28°F) on or before...
10% chanceNov 6
20% chanceNov 12
30% chanceNov 19
40% chanceNov 26
50% chanceDec 1
60% chanceDec 6
70% chanceDec 12
80% chanceDec 20
90% chanceDec 30
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 20
20% chanceDec 1
30% chanceDec 6
40% chanceDec 14
50% chanceDec 23
60% chanceDec 29
70% chanceJan 3
80% chanceJan 16
90% chanceFeb 1
Probability of hard freeze (20°F) on or before...
10% chanceDec 1
20% chanceDec 8
30% chanceDec 19
40% chanceDec 27
50% chanceJan 1
60% chanceJan 7
70% chanceJan 18
80% chanceFeb 1
90% chanceFeb 12
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 6
20% chanceDec 15
30% chanceDec 25
40% chanceDec 30
50% chanceJan 2
60% chanceJan 10
70% chanceJan 22
80% chanceFeb 2
90% chanceFeb 13

Agricultural climatic data from weather station: PALMER 3 ESE (USC00456295)

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