🌷 Your Ultimate Garden Calendar!

🌷 Last Frost Dates for Port Chester, New York 10573

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

The last 32°F light freeze date is 30% likely to be on Apr 22. (See detailed probabilities below.)

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Port Chester, NY 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 14
20% chanceMay 8
30% chanceMay 5
40% chanceMay 2
50% chanceApr 29
60% chanceApr 27
70% chanceApr 23
80% chanceApr 20
90% chanceApr 16
Probability of light freeze (32°F) on or after…
10% chanceApr 30
20% chanceApr 25
30% chanceApr 22
40% chanceApr 19
50% chanceApr 17
60% chanceApr 14
70% chanceApr 11
80% chanceApr 7
90% chanceApr 4
Probability of moderate freeze (28°F) on or after…
10% chanceApr 18
20% chanceApr 14
30% chanceApr 10
40% chanceApr 7
50% chanceApr 4
60% chanceApr 2
70% chanceMar 31
80% chanceMar 28
90% chanceMar 22
Probability of moderate hard freeze (24°F) on or after…
10% chanceApr 9
20% chanceApr 4
30% chanceApr 1
40% chanceMar 30
50% chanceMar 27
60% chanceMar 23
70% chanceMar 20
80% chanceMar 16
90% chanceMar 12
Probability of hard freeze (20°F) on or after…
10% chanceMar 31
20% chanceMar 28
30% chanceMar 23
40% chanceMar 20
50% chanceMar 17
60% chanceMar 14
70% chanceMar 11
80% chanceMar 8
90% chanceMar 3
Probability of severe hard freeze (16°F) on or after…
10% chanceMar 23
20% chanceMar 18
30% chanceMar 15
40% chanceMar 11
50% chanceMar 8
60% chanceMar 5
70% chanceMar 1
80% chanceFeb 25
90% chanceFeb 17

Agricultural climatic data from weather station: WESTCHESTER CO AP (USW00094745)

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