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🍂 First Frost Dates for Metaline, Washington 99152

The first 36°F frost date is 30% likely to be on Sep 14. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 27. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Metaline, 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 5
20% chanceSep 10
30% chanceSep 14
40% chanceSep 17
50% chanceSep 20
60% chanceSep 23
70% chanceSep 25
80% chanceSep 29
90% chanceOct 3
Probability of light freeze (32°F) on or before...
10% chanceSep 19
20% chanceSep 24
30% chanceSep 27
40% chanceSep 30
50% chanceOct 2
60% chanceOct 5
70% chanceOct 8
80% chanceOct 12
90% chanceOct 18
Probability of moderate freeze (28°F) on or before...
10% chanceOct 1
20% chanceOct 5
30% chanceOct 10
40% chanceOct 14
50% chanceOct 18
60% chanceOct 21
70% chanceOct 24
80% chanceOct 29
90% chanceNov 4
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 15
20% chanceOct 20
30% chanceOct 24
40% chanceOct 29
50% chanceNov 1
60% chanceNov 5
70% chanceNov 10
80% chanceNov 16
90% chanceNov 23
Probability of hard freeze (20°F) on or before...
10% chanceOct 26
20% chanceNov 1
30% chanceNov 7
40% chanceNov 12
50% chanceNov 17
60% chanceNov 22
70% chanceNov 27
80% chanceDec 1
90% chanceDec 7
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 5
20% chanceNov 13
30% chanceNov 20
40% chanceNov 25
50% chanceNov 30
60% chanceDec 3
70% chanceDec 6
80% chanceDec 11
90% chanceDec 18

Agricultural climatic data from weather station: BOUNDARY DAM (USC00450844)

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