🌷 Last Frost Dates for Scappoose, Oregon 97056

The last 36°F Spring frost date is 30% likely to be on May 13. (See detailed probabilities below.)

The last 32°F light freeze date is 30% likely to be on Apr 26. (See detailed probabilities below.)

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Scappoose, OR are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

What is a Last Frost Date?

The last spring frost signals when your area is safe from freezing temperatures. Tender plants can now grow outdoors without cold damage! This marks the beginning of the growing season. Last spring frost serves as your essential starting point for planting warm-season crops. It's also time to remove winter protection from your perennials. Enjoy the longer days and warmer weather!

How to use the Last Frost Date?

Start seeds indoors several weeks before your last frost date. This gives plants time to reach transplanting size when weather permits. Plan your outdoor planting schedule around your area's average last frost date. Plant some crops before and some after this date to protect against weather changes. Look for spots in your yard where frost stays longer or disappears earlier. Create your own frost map to use all available growing space and extend your season. Keep watching your local weather forecast to catch any surprise late frosts.

Last Frost Date Probabilities

Probability of frost (36°F) on or after…
10% chanceMay 25
20% chanceMay 18
30% chanceMay 13
40% chanceMay 10
50% chanceMay 7
60% chanceMay 3
70% chanceApr 30
80% chanceApr 27
90% chanceApr 22
Probability of light freeze (32°F) on or after…
10% chanceMay 5
20% chanceApr 30
30% chanceApr 26
40% chanceApr 21
50% chanceApr 17
60% chanceApr 12
70% chanceApr 6
80% chanceMar 31
90% chanceMar 24
Probability of moderate freeze (28°F) on or after…
10% chanceApr 6
20% chanceMar 29
30% chanceMar 22
40% chanceMar 16
50% chanceMar 9
60% chanceMar 2
70% chanceFeb 26
80% chanceFeb 19
90% chanceFeb 8
Probability of moderate hard freeze (24°F) on or after…
10% chanceMar 1
20% chanceFeb 25
30% chanceFeb 19
40% chanceFeb 14
50% chanceFeb 8
60% chanceFeb 2
70% chanceJan 24
80% chanceJan 12
90% chanceJan 1
Probability of hard freeze (20°F) on or after…
10% chanceFeb 20
20% chanceFeb 13
30% chanceFeb 5
40% chanceJan 31
50% chanceJan 21
60% chanceJan 8
70% chanceJan 1
80% chanceDec 24
90% chanceDec 11
Probability of severe hard freeze (16°F) on or after…
10% chanceFeb 15
20% chanceFeb 7
30% chanceFeb 1
40% chanceJan 18
50% chanceJan 5
60% chanceDec 31
70% chanceDec 25
80% chanceDec 16
90% chanceDec 7

Agricultural climatic data from weather station: SCAPPOOSE IND AP (USW00004201)