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🍂 First Frost Dates for Deadwood, Oregon 97430

The first 36°F frost date is 30% likely to be on Oct 26. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 13. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Deadwood, OR 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 11
20% chanceOct 20
30% chanceOct 26
40% chanceOct 30
50% chanceNov 3
60% chanceNov 8
70% chanceNov 13
80% chanceNov 20
90% chanceNov 28
Probability of light freeze (32°F) on or before...
10% chanceOct 29
20% chanceNov 6
30% chanceNov 13
40% chanceNov 20
50% chanceNov 26
60% chanceDec 1
70% chanceDec 7
80% chanceDec 14
90% chanceDec 26
Probability of moderate freeze (28°F) on or before...
10% chanceNov 19
20% chanceNov 30
30% chanceDec 6
40% chanceDec 11
50% chanceDec 18
60% chanceDec 26
70% chanceJan 1
80% chanceJan 13
90% chanceFeb 1
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 2
20% chanceDec 9
30% chanceDec 16
40% chanceDec 22
50% chanceDec 28
60% chanceJan 1
70% chanceJan 17
80% chanceFeb 1
90% chanceFeb 9
Probability of hard freeze (20°F) on or before...
10% chanceDec 8
20% chanceDec 13
30% chanceDec 18
40% chanceDec 23
50% chanceDec 27
60% chanceDec 30
70% chanceJan 7
80% chanceJan 30
90% chanceFeb 7
Probability of severe hard freeze (16°F) on or before...
10% chancerarely
20% chancerarely
30% chancerarely
40% chancerarely
50% chancerarely
60% chancerarely
70% chancerarely
80% chancerarely
90% chancerarely

Agricultural climatic data from weather station: TIDEWATER (USC00358481)

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