When is the last frost in pa

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.

When is the last frost in pa. 1 to 2 weeks after last frost. Peppers. 8 to 10 weeks before last frost. 1 to 2 weeks after last frost. Cucumbers. 2 to 4 weeks before last frost. 1 to 2 weeks after last frost. Using these guidelines, your vegetables will have a head start, thriving in Pennsylvania’s growing season.

A light frost is when temperatures are between 29°-32°F. During a light frost, tender plants may be killed, with little destructive effect on hardier vegetation. The probability of a frost occurring after the spring date or before the fall frost date listed below is 30%, which means that a frost could occur before or after the dates listed.

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Sep 30. Oct 5. Oct 9. Oct 13. Oct 17. Oct 21. Oct 26. Nov 2. Now that you know your frost dates, use our Garden Planting Calendar for Glenside, Pennsylvania to know when to sow and transplant your various vegetable plants!As your growing season comes to an end, the nightly temperatures for Taylor, Pennsylvania start to go down, and therefore every day that goes by increases the chance that you'll get frost. Your risk of frost really begins around September 30, and by October 26 you're almost certain to have received at least one frost event.You have a small 20% chance of getting 32° by September 28. There is a 50% chance of being hit by a 32° frost starting around October 9. You have a 80% chance of seeing 32° by October 21. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.20 Apr 2023 ... *UPDATED* Final Call Snowfall Forecast for Tuesday's Significant Snowstorm Across Parts of Pennsylvania; Large Shift Southward. by Lead ...

As your growing season comes to an end, the nightly temperatures for Franklin, Pennsylvania start to go down, and therefore every day that goes by increases the chance that you'll get frost. Your risk of frost really begins around October 5, and by October 25 you're almost certain to have received at least one frost event.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Depending on the type of carrots, it takes roughly 5-10 days to grow carrots from seed indoors and then transplant them to your garden. For a specific date that you should start carrots seeds indoors you should: Find the last average frost date HERE. And then subtract 10 days from it.

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Here are the recommended planting times for each hardiness zone: Zone 5: The best time to plant blueberries in Zone 5, which covers most of Pennsylvania, is in early spring, typically between late March and mid-April. This allows the plants to establish their root systems before the hot summer months. Zone 6: In Zone 6, which includes parts of ...If you’re looking for an immersive theater experience that combines stunning visuals, live performances, and state-of-the-art technology, then look no further than Sight and Sound ...Want to know when to expect your last frost of the spring, or the first frost of the fall? Enter your zip code (or City, State) below and we'll tell you what we know. Our information is taken directly from the National Weather Service and depending on the location of the reporting station for your zip code, the results may vary. Popular Plants.

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Sep 24. Sep 26. Sep 29. Oct 1. Oct 3. Oct 6. Oct 8. Oct 12. Now that you know your frost dates, use our Garden Planting Calendar for Scranton, Pennsylvania to know when to sow and transplant your various vegetable plants!A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last frost in spring or the first frost in fall or winter. Frost occurs when air temperatures reach freezing: 32° Fahrenheit (0° …Generally in Great Barrington, we expect the last frost date could be as late as May 20 and as early as September 25. Know too that the soil may be too cold for ...

You have a 80% chance of seeing 32° by October 26. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. Now that you know …A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.You have a small 20% chance of getting 32° by September 28. There is a 50% chance of being hit by a 32° frost starting around October 7. You have a 80% chance of seeing 32° by October 16. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.You have a small 20% chance of getting 32° by October 6. There is a 50% chance of being hit by a 32° frost starting around October 15. You have a 80% chance of seeing 32° by October 25. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Sep 1. Sep 4. Sep 7. Sep 10. Sep 13. Sep 16. Sep 20. Sep 25. Now that you know your frost dates, use our Garden Planting Calendar for Waymart, Pennsylvania to know when to sow and transplant your various vegetable plants!List of Average Last Frost Dates for Locations in Pennsylvania. Location. Average Last Frost Dates. Allentown. May 11 - May 20. Allison Park. May 1 - May 10. Allison Park. May 1 - May 10.

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.

In southeastern Pennsylvania, that appears to be between April 3 and April 17 this year. Communities closer to Pittsburgh will see their last spring frost occur closer to April 30, according to ...Broccoli, beets, cabbage, cauliflower and kale can all be started from seed indoors before bringing them out several weeks before your projected frost-free date. Seedlings should be "hardened off," or brought outside to face the elements during the day for about a week before you transplant them in order to let the plants acclimate to the ...You have a small 20% chance of getting 32° by October 5. There is a 50% chance of being hit by a 32° frost starting around October 13. You have a 80% chance of seeing 32° by October 21. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.7 Sept 2017 ... Frost Calculator by Zip Code. Go to www.Almanac.com/frost ... frost calculator provides both the last spring frost date and ... Milan, PA... October ...A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.

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A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.As a cool-season vegetable, carrots are best planted in the very early spring and fall—they will not thrive during hot weather. The right planting time is about 2-4 weeks before your last frost date. Ahead, we dive into the exact planting times for carrots based on growing zone, plus some additional tips to have a bountiful harvest.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Planting Dates for Spring. On average, your last spring frost occurs on May 16 (at CLARION 3 SW, PA climate station, elevation 1040 feet). Crop. Based on Frost Dates. Based on Moon Dates. Start Seeds Indoors. Plant Seedlings. or …There is a 50% chance of being hit by a 32° frost starting around October 19. You have a 80% chance of seeing 32° by October 30. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall. Temperature.You have a small 20% chance of getting 32° by October 5. There is a 50% chance of being hit by a 32° frost starting around October 16. You have a 80% chance of seeing 32° by October 26. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation. Severe freeze: 24°F (-4.4°C) and colder—heavy damage to most garden plants.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Oct 10. Oct 13. Oct 16. Oct 19. Oct 23. Oct 26. Oct 31. Now that you know your frost dates, use our Garden Planting Calendar for Oxford, Pennsylvania to know when to sow and transplant your various vegetable plants! ….

A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.Some examples that might help: You have a small 20% chance of getting 32° by October 7. There is a 50% chance of being hit by a 32° frost starting around October 16. You have a 80% chance of seeing 32° by October 25. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.Frost seeding harnesses the power of the freeze-thaw cycle and early spring showers to establish a strong seed-to-soil connection. As spring approaches, the soil begins its dance, moving up (freeze) and down (thaw), creating tiny cracks that serve as ideal entry points for those hardy little clover seeds. Frost seeding allows Mother Nature to ...As your growing season comes to an end, the nightly temperatures for Finleyville, Pennsylvania start to go down, and therefore every day that goes by increases the chance that you'll get frost. Your risk of frost really begins around October 6, and by October 29 you're almost certain to have received at least one frost event.You have a small 20% chance of getting 32° by September 21. There is a 50% chance of being hit by a 32° frost starting around September 30. You have a 80% chance of seeing 32° by October 10. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.Sep 24. Sep 27. Sep 30. Oct 3. Oct 6. Oct 10. Oct 15. Now that you know your frost dates, use our Garden Planting Calendar for Bethel Park, Pennsylvania to know when to sow and transplant your various vegetable plants!A frost date is the average date of the last light freeze in spring or the first light freeze in fall.. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation. Severe freeze: 24°F (-4.4°C) and colder—heavy ...A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.As your growing season comes to an end, the nightly temperatures for Mc Veytown, Pennsylvania start to go down, and therefore every day that goes by increases the chance that you'll get frost. Your risk of frost really begins around September 30, and by October 24 you're almost certain to have received at least one frost event. When is the last frost in pa, You have a small 20% chance of getting 32° by October 5. There is a 50% chance of being hit by a 32° frost starting around October 13. You have a 80% chance of seeing 32° by October 21. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall., Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; SUMMER Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates Chart; Robin's Garden Blog, A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., You have a small 20% chance of getting 32° by September 30. There is a 50% chance of being hit by a 32° frost starting around October 9. You have a 80% chance of seeing 32° by October 19. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall., Sep 24. Sep 27. Sep 30. Oct 3. Oct 6. Oct 10. Oct 15. Now that you know your frost dates, use our Garden Planting Calendar for Allegheny, Pennsylvania to know when to sow and transplant your various vegetable plants!, You have a small 20% chance of getting 32° by October 1. There is a 50% chance of being hit by a 32° frost starting around October 12. You have a 80% chance of seeing 32° by October 22. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall., But you’ll have to be patient if you’re looking to plant tomatoes, peppers and cucumbers. Those are the plants that shouldn’t go into the ground until at least the middle of May. According to the weather service, the latest frost on record in Allentown took place May 30, 1949. The latest freeze on record took place May 21, 2002., The date below this (next to Last 36°) indicates the ultimate “safe date” for tender crops. You are highly unlikely to experience any frosts after that date. Here are a few examples of last frost dates (last 32°F day with 90% probability) from around the U.S.: San Diego, CA: January 22; Phoenix, AZ: March 7; Frisco, TX: April 8; Portland ..., Frost seeding harnesses the power of the freeze-thaw cycle and early spring showers to establish a strong seed-to-soil connection. As spring approaches, the soil begins its dance, moving up (freeze) and down (thaw), creating tiny cracks that serve as ideal entry points for those hardy little clover seeds. Frost seeding allows Mother Nature to ..., 11 May 2010 ... Dahlia Mystic Desire, edged in frost at 7:00 a.m., May 10. NOAA has a handy set of maps that illustrate last dates of “Spring freeze occurrence” ..., 1 to 2 weeks after last frost. Peppers. 8 to 10 weeks before last frost. 1 to 2 weeks after last frost. Cucumbers. 2 to 4 weeks before last frost. 1 to 2 weeks after last frost. Using these guidelines, your vegetables will have a head start, thriving in Pennsylvania's growing season., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., Sep 24. Sep 27. Sep 30. Oct 3. Oct 6. Oct 10. Oct 15. Now that you know your frost dates, use our Garden Planting Calendar for Bethel Park, Pennsylvania to know when to sow and transplant your various vegetable plants!, A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., Oct 17. Oct 20. Oct 23. Oct 26. Oct 29. Nov 1. Nov 4. Nov 9. Now that you know your frost dates, use our Garden Planting Calendar for Philadelphia, Pennsylvania to know when to sow and transplant your various vegetable plants!, A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., Communities closer to Pittsburgh will see their last spring frost occur closer to April 30, according to the Almanac. Pennsylvania is in 5, 6 and 7 USDA plant hardiness zones, with southern ..., Planting Dates for Spring. On average, your last spring frost occurs on May 16 (at CLARION 3 SW, PA climate station, elevation 1040 feet). Crop. Based on Frost Dates. Based on Moon Dates. Start Seeds Indoors. Plant Seedlings. or Transplants. Start Seeds Outdoors., You have a small 20% chance of getting 32° by October 8. There is a 50% chance of being hit by a 32° frost starting around October 18. You have a 80% chance of seeing 32° by October 29. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., Sep 20. Sep 24. Sep 27. Sep 30. Oct 3. Oct 6. Oct 10. Oct 15. Now that you know your frost dates, use our Garden Planting Calendar for Mckeesport, PA to know when to sow and transplant your various vegetable plants!, As your growing season comes to an end, the nightly temperatures for Sellersville, Pennsylvania start to go down, and therefore every day that goes by increases the chance that you'll get frost. Your risk of frost really begins around September 16, and by October 24 you're almost certain to have received at least one frost event., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., Communities closer to Pittsburgh will see their last spring frost occur closer to April 30, according to the Almanac. Pennsylvania is in 5, 6 and 7 USDA plant hardiness zones, with southern ..., Your last frost date is the average date of the last light freeze in spring for your area (note the word "average"; this is just an estimation based on historical climate data). In case you're wondering, a light freeze is when the temperature ranges from 29°F to 32°F. This type of freeze is enough to kill tender plants like tomatoes and basil ..., Oct 14. Oct 17. Oct 20. Oct 23. Oct 27. Nov 1. Now that you know your frost dates, use our Garden Planting Calendar for North East, Pennsylvania to know when to sow and transplant your various vegetable plants!, A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation., A frost date is the average date of the last light freeze in spring or the first light freeze in fall. The classification of freeze temperatures is based on their effect on plants: Light freeze: 29° to 32°F (-1.7° to 0°C)—tender plants are killed. Moderate freeze: 25° to 28°F (-3.9° to -2.2°C)—widely destructive to most vegetation.