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🍂 First Frost Dates for Federal Way, Washington 98003

The first 36°F frost date is 30% likely to be on Oct 3. (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 Federal Way, 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 25
20% chanceOct 1
30% chanceOct 3
40% chanceOct 6
50% chanceOct 9
60% chanceOct 13
70% chanceOct 18
80% chanceOct 22
90% chanceOct 28
Probability of light freeze (32°F) on or before...
10% chanceOct 7
20% chanceOct 17
30% chanceOct 22
40% chanceOct 26
50% chanceOct 29
60% chanceNov 1
70% chanceNov 5
80% chanceNov 11
90% chanceNov 18
Probability of moderate freeze (28°F) on or before...
10% chanceOct 27
20% chanceNov 2
30% chanceNov 7
40% chanceNov 12
50% chanceNov 18
60% chanceNov 23
70% chanceNov 29
80% chanceDec 4
90% chanceDec 12
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 13
20% chanceNov 22
30% chanceNov 29
40% chanceDec 4
50% chanceDec 8
60% chanceDec 14
70% chanceDec 20
80% chanceDec 28
90% chanceJan 9
Probability of hard freeze (20°F) on or before...
10% chanceNov 25
20% chanceDec 3
30% chanceDec 10
40% chanceDec 17
50% chanceDec 25
60% chanceDec 31
70% chanceJan 6
80% chanceJan 21
90% chanceFeb 7
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 1
20% chanceDec 8
30% chanceDec 18
40% chanceDec 25
50% chanceDec 30
60% chanceJan 4
70% chanceJan 14
80% chanceJan 29
90% chanceFeb 11

Agricultural climatic data from weather station: PUYALLUP 2 W EXP STN (USC00456803)

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