Last frost date spokane wa

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.

Last frost date spokane wa. Average last frost date ranges from early to late spring in Spokane County. Check your dates on Washington Last Average Frost Date Map. Summer: Temperatures can be quite hot, sometimes reaching 100°F. It’s a dry season so we recommend drought-tolerant plants. Plan to irrigate. Our long summer days provide lots of sun for beautiful flowers.

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.

First and Last Frost Dates. Frost: When temperatures are less than or equal to 36°F ... First Frost Date (Average) Last Frost Date (Average) First Freeze Date (Average) Last Freeze Date (Average) Spokane: Sep-30: May-10: Oct-12: Apr-28: Pullman: Sep-06: May-27: Sep-27: May-06: Omak: Sep-21: May-22: Oct ... WA 98121. Hours …See the average first and last frost dates for locations across the U.S. and Canada with our frost dates calculator. Simply enter your postal code to see when the last spring frost date and first fall frost date typically occur in your area. Knowing local frost dates can improve your gardening by giving you an idea of when to start seeds indoors and …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.Last 16° Mar 11: Mar 2: Feb 23: Feb 18: Feb 13: Feb 7: Feb 2: Jan 26: Jan 17: Last 20° Mar 23: Mar 14: Mar 8: Mar 2: Feb 25: Feb 20: Feb 14: Feb 7: Jan 29: Last 24° Apr 17: Apr 9: Apr 3: Mar 29: Mar 25: Mar 20: Mar 15: Mar 9: Mar 1: Last 28° May 6: Apr 30: Apr 25: Apr 21: Apr 18: Apr 14: Apr 11: Apr 6: Mar 31: Last 32° May 18: May 12: May ...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.In Spokane the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F . It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Spokane and it can change quite a bit from year to year.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.

Planting Guides for Sequim. According to the USDA Sequim is in USDA Zone 8b. Here is some general info for USDA Zone 8b to help you get started. Average Date of Last Frost (spring) March 15. Average Date of First Frost (fall) November 15. …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.Could this plan lead to “too much frosting?” No, because there is no such thing. I am a decidedly mediocre baker and an even worst decorator. As someone with a near-constant tremor...

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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.See all nearby weather stations. This report shows the past weather for Spokane, providing a weather history for 2022. It features all historical weather data series we have available, including the Spokane temperature history for 2022. You can drill down from year to month and even day level reports by clicking on the graphs.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.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.Looking for the best restaurants in Bellingham, WA? Look no further! Click this now to discover the BEST Bellingham restaurants - AND GET FR Bellingham is a slice of paradise for f...

May 26, 2022 · Sep 17. Sep 20. Sep 22. Sep 24. Sep 26. Sep 29. Oct 2. Oct 5. Now that you know your frost dates, use our Garden Planting Calendar for Spokane, WA 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. In Spokane the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -5°F . It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Spokane and it can change quite a bit from year to year. 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. The average date of last frost is April 15 in Spokane. In the coldest months of winter you should expect an average low temperature of -5°F . Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Spokane and it will vary from year to year.Whidbey Island is north of Seattle, across Puget Sound. It's full of breathtaking vistas, small towns, & a quirky, fun, delightful rural landscape. Last Updated on April 23, 2023 P...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.Average last frost dates for the U.S. Average first frost dates for the U.S. 2021-04-20T21:27:12-07:00 By nwseed | General Garden Info | Share This Story, Choose Your Platform! ... Spokane, WA 99208 (509) 484-7387. Mon – Sun: 9:00am – 6:00pm. Get Directions. Shop; Locations; About; Contact;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.Looking for a financial advisor in Vancouver, Washington? We round up the top firms in the city, along with their fees, services, investment strategies and more... Calculators Help...

Good Friday - Friday, April 7, 2023. Mother’s Day - Sunday, May 14, 2023. Last Assumed Frost Date in Spokane Area - Monday, May 15, 2023. Memorial Day - Monday, May 29, 2023. Father's Day - Sunday, June 18, 2023. Cole Crops: Broccoli, Brussel Sprouts, Cabbage, Lettuce, and Onions - Plant the first week of April all through the month.

A Myanmar judge sentenced two reporters who were reporting on the Rohingya crisis to seven years in prison. A Myanmar judge sentenced two Reuters journalists to seven years in pris...Depending on the type of corn, it takes roughly 25-30 days to grow corn from seed indoors and then transplant them to your garden. For a specific date that you should start corn seeds indoors you should: Find the last average frost date HERE. And then subtract 30 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.In Spokane, Oct. 7 is the average date of the first frost or sub-32-degree day. In Pullman, it's Oct. 1. Lewiston, Idaho holds off a little longer at Oct. 21 as the average first frost of the year.Frost Dates for Spokane, WA. ... Last and first frost dates are 30% probability. Calculated using 1991-2020 Climate Normals from NOAA. What are 2024 Frost Dates?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.Beverly asks, “When is the best time to plant gladiolus? And should I order them online or buy locally?”Gladioli can be planted in the spring around your last frost date. Here are ...

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Planting Guides for Spokane. According to the USDA Spokane is in USDA Zone 6b. Here is some general info for USDA Zone 6b to help you get started. Average Date of Last Frost …The average final day of a frost in Spokane (32 degrees or lower) is April 29! (Over the past 30 years.) That means that half the time, the last frost is before that date, half the time it's after.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. 30-year snowfall averages at Spokane, 1991 to 2020. These averages don't show how much the snowfall in Spokane varies from year to year. In December, for instance, one in four years totals over 17.8 inches of snow. Another 25 percent of years receive less than 6.5 inches for the month. Similarly in January, fresh snowfall in the heaviest years ... 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 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.Aug 24. Aug 28. Sep 1. Sep 4. Sep 7. Sep 11. Sep 16. Sep 21. Now that you know your frost dates, use our Garden Planting Calendar for St. John, WA 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. Main navigation. Weather Weather sub-navigation. Extended Forecast; 5-Day Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner App 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.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.Frost Dates; Weather History; ... 2024 First and Last Frost Dates for Places in Washington. Aberdeen, WA; ... Spokane, WA; Sunnyside, Yakima County, WA ...Planting Guides for Spokane. According to the USDA Spokane is in USDA Zone 6b. Here is some general info for USDA Zone 6b to help you get started. Average Date of Last Frost (spring) April 15. Average Date of First Frost (fall) October 15. Lowest Expected Low. -5°F.You have a small 20% chance of getting 32° by September 5. There is a 50% chance of being hit by a 32° frost starting around September 15. You have a 80% chance of seeing 32° by September 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. Last frost date spokane wa, 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., Washington’s average annual temperatures range from the Pacific Coast’s 51 degrees to the northeast’s 40 degrees. ... including Washington planting zones, are based on first and last frost dates. Always choose plants rated for the Washington planting zone you are in or lower. For example, if you live in zone 4a, choose plants rated for ..., Discover the predicted last spring frost dates for various towns across Washington state and plan ahead for the upcoming growing season. Check out the Old Farmers Almanac online for detailed information on the length of the growing season in your region., Be prepared to protect plants with covers, hot caps or row cover. Planting a little late is the safest method. Average last frost date ranges from early to late spring in Spokane County. Check your dates on Washington Last Average Frost Date Map., Hardiness Zones for ZIP Code 99223 - Spokane, Washington as Well as First/Last Frost Dates, Climate Averages and Drought Conditions. ... Additional Gardening Related Climate Data for ZIP Code 99223 - Spokane, Washington . 2023 Hardiness Zone ... Annual Climate Data for ZIP Code 99223 - Spokane, WA Jan Feb Mar Apr May Jun Jul Aug Sep Oct …, On average, your last spring frost occurs on June 13 (at SPOKANE 17 SSW, WA climate station, elevation 2267 feet). Crop Based on Frost Dates Based on Moon Dates; Start Seeds Indoors Plant Seedlings or Transplants Start Seeds Outdoors Last Date to Plant; Arugula: Apr 18-May 2 Apr 18-23: May 23-Jun 6 May 23: May 16-23 May 16-23: Aug 2: …, 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., 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. , 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., How to grow your own food in 2021 the ultimate planting calendar The, 6b (according to the 2012 map) zone: Knowing your first and last frost dates will help you start your. Source: extension.wsu.edu Monthly Gardening Tips Spokane County Washington State University , Birds, butterflies, bees, and other animals will use them for shelter, food, habitat, and …, The average date of last frost is April 15 in Spokane. You should expect an average low temperature of -5°F in the coldest months of winter. Since the USDA zone info for Spokane is not always accurate the actual date of last frost can change quite a bit from year to year., April Fool’s Day - Monday, April 1, 2024 Good Friday - Friday, March 29, 2024 Mother’s Day - Sunday, May 12, 2024 Last Assumed Frost Date in Spokane Area - Wednesday, May 15, 2024 Memorial Day - Monday, May 27, 2024 Father’s Day - Sunday, June 16, 2024 -----, 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., The average final day of a frost in Spokane (32 degrees or lower) is April 29! (Over the past 30 years.) That means that half the time, the last frost is before that date, half the time it's after., This report shows the past weather for Spokane, providing a weather history for 2023. It features all historical weather data series we have available, including the Spokane temperature history for 2023. You can drill down from year to month and even day level reports by clicking on the graphs., What is the function of the fan in a refrigerator? Can a refrigerator keep cool without a fan? Advertisement Many older refrigerators and most small refrigerators (like small bar a..., Frost Dates; Weather History; Gardening Gardening sub-navigation. Planting Dates Chart; Plant Growing Guides; Robin's Garden Blog; Pests & Diseases; Vegetable …, 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., Leaflet | ©Zipdatamaps ©OpenStreetMap Contributors. Share: Last Frost Dates were calculated using daily climate data from the period between 1991-2020. List of Average …, How to grow your own food in 2021 the ultimate planting calendar The, 6b (according to the 2012 map) zone: Knowing your first and last frost dates will help you start your. Source: extension.wsu.edu Monthly Gardening Tips Spokane County Washington State University , Birds, butterflies, bees, and other animals will use them for shelter, food ..., Feb 20, 2024 ... ... frost alerts go into effect until Monday ... date and potentially vulnerable to security risks. We ... Spokane, WA | Terms of Use | Privacy Policy., 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., Last update: 28 Apr 08:35 AM PDT ... Widespread frost after 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southwest wind 7 to 13 mph. Tuesday. ... Spokane WA 47.66°N 117.4°W (Elev. …, 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., Key Planting Dates for the Spokane Area 2024. Cole Crops: Broccoli, Brussel Sprouts, Cabbage, Lettuce, and Onions = Plant the first week of April and throughout the month. Beans = Plant after the frost ends (May 15th) when the soil temperature is at least 60 degrees. Beets = Plant the first week of April and throughout the month., Since the USDA zone info for Spokane is not always accurate the actual date of last frost is different every year. Since half of the time in Spokane there is a last frost after April 15 be ready to cover your lantana in the event of a surprise late frost. USDA Zone Info for Spokane. Here is the info for USDA Zone 6b. , Good Friday - Friday, April 7, 2023. Mother’s Day - Sunday, May 14, 2023. Last Assumed Frost Date in Spokane Area - Monday, May 15, 2023. Memorial Day - Monday, May 29, 2023. Father's Day - Sunday, June 18, 2023. Cole Crops: Broccoli, Brussel Sprouts, Cabbage, Lettuce, and Onions - Plant the first week of April all through the month., Frost Dates for Spokane, WA. See 2024 Frost Dates for Your Location. Use our 2024 Frost Dates Calculator to find the average dates of the last light freeze of spring and the first light freeze of fall for locations across the U.S. and Canada., Zone 6b: -5°F to 0°F. 1990 Hardiness Zone: Zone 1b: -15F to -10F. Average First Frost Date: October 1 - 10. Average Last Frost Date: April 21 - 30. Koppen-Geiger Climate …, 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.