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🍂 First Frost Dates for Lacey, Washington 98503

The first 36°F frost date is 30% likely to be on Sep 23. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 6. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Lacey, 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 12
20% chanceSep 18
30% chanceSep 23
40% chanceSep 26
50% chanceSep 29
60% chanceOct 1
70% chanceOct 5
80% chanceOct 8
90% chanceOct 14
Probability of light freeze (32°F) on or before...
10% chanceSep 29
20% chanceOct 2
30% chanceOct 6
40% chanceOct 10
50% chanceOct 14
60% chanceOct 18
70% chanceOct 22
80% chanceOct 26
90% chanceNov 1
Probability of moderate freeze (28°F) on or before...
10% chanceOct 12
20% chanceOct 20
30% chanceOct 24
40% chanceOct 29
50% chanceNov 1
60% chanceNov 6
70% chanceNov 12
80% chanceNov 20
90% chanceNov 28
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 31
20% chanceNov 6
30% chanceNov 13
40% chanceNov 20
50% chanceNov 26
60% chanceDec 1
70% chanceDec 6
80% chanceDec 14
90% chanceDec 27
Probability of hard freeze (20°F) on or before...
10% chanceNov 10
20% chanceNov 21
30% chanceNov 30
40% chanceDec 6
50% chanceDec 13
60% chanceDec 22
70% chanceDec 30
80% chanceJan 10
90% chanceJan 31
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 25
20% chanceDec 4
30% chanceDec 11
40% chanceDec 19
50% chanceDec 26
60% chanceJan 1
70% chanceJan 15
80% chanceFeb 1
90% chanceFeb 12

Agricultural climatic data from weather station: OLYMPIA AP (USW00024227)

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