🌷 Your Ultimate Garden Calendar!

🌷 Last Frost Dates for Silver Spring, Maryland 20901

The last 36°F Spring frost date is 30% likely to be on Apr 24. (See detailed probabilities below.)

The last 32°F light freeze date is 30% likely to be on Apr 11. (See detailed probabilities below.)

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Silver Spring, MD 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 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 3
20% chanceApr 28
30% chanceApr 24
40% chanceApr 21
50% chanceApr 19
60% chanceApr 16
70% chanceApr 13
80% chanceApr 9
90% chanceApr 5
Probability of light freeze (32°F) on or after…
10% chanceApr 19
20% chanceApr 15
30% chanceApr 11
40% chanceApr 8
50% chanceApr 6
60% chanceApr 3
70% chanceApr 1
80% chanceMar 29
90% chanceMar 23
Probability of moderate freeze (28°F) on or after…
10% chanceApr 8
20% chanceApr 3
30% chanceApr 1
40% chanceMar 29
50% chanceMar 26
60% chanceMar 23
70% chanceMar 19
80% chanceMar 16
90% chanceMar 11
Probability of moderate hard freeze (24°F) on or after…
10% chanceMar 30
20% chanceMar 25
30% chanceMar 21
40% chanceMar 18
50% chanceMar 14
60% chanceMar 11
70% chanceMar 8
80% chanceMar 4
90% chanceFeb 28
Probability of hard freeze (20°F) on or after…
10% chanceMar 21
20% chanceMar 14
30% chanceMar 10
40% chanceMar 6
50% chanceMar 2
60% chanceFeb 28
70% chanceFeb 24
80% chanceFeb 17
90% chanceFeb 7
Probability of severe hard freeze (16°F) on or after…
10% chanceMar 11
20% chanceMar 3
30% chanceFeb 27
40% chanceFeb 21
50% chanceFeb 15
60% chanceFeb 9
70% chanceFeb 3
80% chanceJan 30
90% chanceJan 20

Agricultural climatic data from weather station: COLLEGE PARK (USC00181995)

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