🌷 Last Frost Dates for Effingham, New Hampshire 03882

The last 36°F Spring frost date is 30% likely to be on Jun 1. (See detailed probabilities below.)

The last 32°F light freeze date is 30% likely to be on May 19. (See detailed probabilities below.)

(See also 🍂 First Fall Frost Dates.)

Last frost date probabilities for Effingham, NH 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% chanceJun 9
20% chanceJun 4
30% chanceJun 1
40% chanceMay 29
50% chanceMay 26
60% chanceMay 23
70% chanceMay 21
80% chanceMay 18
90% chanceMay 13
Probability of light freeze (32°F) on or after…
10% chanceMay 28
20% chanceMay 22
30% chanceMay 19
40% chanceMay 16
50% chanceMay 13
60% chanceMay 11
70% chanceMay 7
80% chanceMay 4
90% chanceApr 30
Probability of moderate freeze (28°F) on or after…
10% chanceMay 14
20% chanceMay 9
30% chanceMay 6
40% chanceMay 3
50% chanceApr 30
60% chanceApr 28
70% chanceApr 25
80% chanceApr 22
90% chanceApr 16
Probability of moderate hard freeze (24°F) on or after…
10% chanceMay 2
20% chanceApr 26
30% chanceApr 22
40% chanceApr 19
50% chanceApr 16
60% chanceApr 13
70% chanceApr 9
80% chanceApr 6
90% chanceApr 3
Probability of hard freeze (20°F) on or after…
10% chanceApr 17
20% chanceApr 13
30% chanceApr 9
40% chanceApr 7
50% chanceApr 4
60% chanceApr 3
70% chanceApr 1
80% chanceMar 30
90% chanceMar 24
Probability of severe hard freeze (16°F) on or after…
10% chanceApr 8
20% chanceApr 5
30% chanceApr 2
40% chanceMar 31
50% chanceMar 30
60% chanceMar 26
70% chanceMar 23
80% chanceMar 20
90% chanceMar 17

Agricultural climatic data from weather station: TAMWORTH 4 (USC00278614)