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🍂 First Frost Dates for Montesano, Washington 98563

The first 36°F frost date is 30% likely to be on Oct 5. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 25. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Montesano, 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 27
20% chanceOct 2
30% chanceOct 5
40% chanceOct 8
50% chanceOct 12
60% chanceOct 15
70% chanceOct 19
80% chanceOct 23
90% chanceOct 30
Probability of light freeze (32°F) on or before...
10% chanceOct 15
20% chanceOct 20
30% chanceOct 25
40% chanceOct 29
50% chanceNov 1
60% chanceNov 5
70% chanceNov 11
80% chanceNov 17
90% chanceNov 25
Probability of moderate freeze (28°F) on or before...
10% chanceNov 1
20% chanceNov 8
30% chanceNov 15
40% chanceNov 23
50% chanceNov 30
60% chanceDec 4
70% chanceDec 9
80% chanceDec 17
90% chanceDec 29
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 15
20% chanceNov 30
30% chanceDec 7
40% chanceDec 13
50% chanceDec 21
60% chanceDec 28
70% chanceJan 2
80% chanceJan 15
90% chanceFeb 2
Probability of hard freeze (20°F) on or before...
10% chanceNov 29
20% chanceDec 7
30% chanceDec 14
40% chanceDec 22
50% chanceDec 28
60% chanceJan 1
70% chanceJan 8
80% chanceJan 20
90% chanceFeb 7
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 5
20% chanceDec 12
30% chanceDec 18
40% chanceDec 23
50% chanceDec 27
60% chanceDec 30
70% chanceJan 2
80% chanceJan 12
90% chanceFeb 1

Agricultural climatic data from weather station: ABERDEEN 20NNE (USC00450013)

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