Last frost day 2023 - December 1 - December 15. January 15 - January 31. 10a, 10b. December 15 - December 31. January 1 - January 15. 11a – 13. Frost-free year-round. Frost-free year-round. Understanding your USDA Hardiness Zone's first and last frost dates empowers you to make informed decisions about when to start planting, transplant, and prepare for the …

 
You have a small 20% chance of getting 32° by --. 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 --. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night.. Kinkos redding ca

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.According to the Oregon Climate Service at OSU, Portland's average last frost date is around the last week of march. But it varies in other places. Author: ...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.Buttercream frosting does not need to be refrigerated if used within two to three days. However, it keeps for up to two weeks if stored in the refrigerator in an airtight container... 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; ... 2024 First and Last Frost Dates for Places in New Hampshire. Antrim, NH ... Some seeds and plants actually thrive in cooler air and soil and should be planted before the last frost date. This list includes cole crop vegetables, such as kale, broccoli, Brussels sprouts, mustard and collard greens, turnips and cabbage. Lettuces, peas, carrots and spinach also thrive in lower temperatures—you can tuck these seeds into ...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.5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates Chart; Plant Growing Guides; ... 2024 First and Last Frost Dates for Places in New Mexico. Agua Fria, Santa Fe County, NM; Alamo, NM; Alamogordo, NM;Some seeds and plants actually thrive in cooler air and soil and should be planted before the last frost date. This list includes cole crop vegetables, such as kale, broccoli, Brussels sprouts, mustard and collard greens, turnips and cabbage. Lettuces, peas, carrots and spinach also thrive in lower temperatures—you can tuck these seeds into ... 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. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner Dec 11, 2020 · The average date of the last frost. The average date of the last frost in spring is a day around which you can plan to start seeds indoors, sow seeds in the garden, and set transplants into the garden. The average date of the last frost in your garden or region is an approximation. It is a date based on an average of the last frost date for ... 2024 First and Last Frost Dates for Places in Tennessee. Alcoa, TN. Athens, TN. Bartlett, TN. Bloomingdale, TN. Bolivar, TN. Brentwood, Williamson County, TN. Bristol, TN. Brownsville, Haywood County, TN. 1. Access the National Gardening Association Calculator. Input your zip code or city location in the calculator to get your first and last frost dates. Your last frost date is the approximate day when your area will stop experiencing temperatures below 32°F …If you’ve ever tried your hand at baking, you know that a delicious buttercream frosting can take your cakes, cupcakes, and cookies to the next level. But for beginners, the though... 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.DES MOINES INTL AP, IA. 958'. Apr 24. Oct 14. 172 days. Last and first frost dates are 30% probability. Calculated using 1991-2020 Climate Normals from NOAA.19 March 2023. Protecting your garden. Last frost dates. First and last frost dates are imperative for gardeners, but can you tell when the last frost will be this year? Frost dates refer to days when …Published March 9, 2023 by Nicole Burke. 30 Plants You Can Grow Before Your Last Frost Date ... Your last frost date is ... Day 18 came and went, and my little radishes were barely...Day One - Day One of the battle at Gettysburg saw the two armies encounter each other for the first time. Learn about the events in Day One of the battle. Advertisement The Battle ...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.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 North Georgia Mountains experience the latest last frost occurring in late April thru early May while The coastal areas eperience last frost in mid February to early March. Last Frost Dates were calculated using daily climate data from the period between 1991-2020. Related Pages.Our “Day of the Last Spring Freeze” map, which is based on climatological research, can help answer that question for your area. Derived from the 1991–2020 U.S. Climate Normals —30-year averages of climatological variables such temperatures—this map shows the most common date range during which areas across the nation can …About Frost Maps. Plantmaps maintains Frost data and maps for many regions on the earth. We've created Average First Frost Dates, Average Last Frost Dates and Average Number of days with Frost maps for most US States and Candian Provinces. Plantmaps also created maps for many countries around the world that are in latitudes where frost …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.If you’ve ever tried your hand at baking, you know that a delicious buttercream frosting can take your cakes, cupcakes, and cookies to the next level. But for beginners, the though...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. 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...2023 last frost date #804719. Asked August 04, 2022, 9:21 PM EDT. Is the last frost date for 2023 for hardiness zone 6a predicted/known yet? Oakland County Michigan.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. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; ... 2024 First and Last Frost Dates for Places in New Jersey. Asbury Park, NJ; Atlantic City, NJ; Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner 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. For viewers in Ireland (north and south), Scotland, Wales or France, click here. to go to the pages pecially dedicated to frost dates in those countries.This page is for readers in England.. We currently have over 600 towns in our frost dates list. Narrow your search by clicking on the the first letter of your town (e.g. click on H if your town is Harrogate).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.2023 last frost date #804719 . Asked August 04, 2022, 9:21 PM EDT. Is the last frost date for 2023 for hardiness zone 6a predicted/known yet? Oakland County Michigan. Expert Response. Hello. Frost dates are calculated based on past years actual freeze and frost data recorded around the State and other factors.About Frost Maps. Plantmaps maintains Frost data and maps for many regions on the earth. We've created Average First Frost Dates, Average Last Frost Dates and Average Number of days with Frost maps for most US States and Candian Provinces. Plantmaps also created maps for many countries around the world that are in latitudes where frost …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.Cream cheese frosting is a delightful addition to any dessert, be it a cake, cupcake, or cookie. Its creamy texture and tangy flavor perfectly complement the sweetness of baked goo...Sep 27, 2023 ... GDD are the total number of degrees Celsius above a base threshold temperature for each day. We use a base threshold of 10 degrees Celsius to ... 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. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates Chart; Plant Growing Guides; ... 2024 First and Last Frost Dates for Places in West Virginia. Alum Creek, WV; Barboursville, WV; Beckley, WV;Professional bull rider Lane Frost was killed in 1989 during Cheyenne Frontier Days from injuries sustained while riding the bull Takin’ Care of Business. Lane Frost was pronounced...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.Dew and frost are actually the same phenomenon, except that dew occurs when the air temperature is above freezing while frost occurs when it is below. Both are condensation that oc...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.5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates Chart; Plant Growing Guides; ... 2024 First and Last Frost Dates for Places in New Mexico. Agua Fria, Santa Fe County, NM; Alamo, NM; Alamogordo, NM;Is the last frost date for 2023 for hardiness zone 6a predicted/known yet? Oakland County Michigan. Expert Response. Hello. Frost dates are …Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates Chart 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. Seasonal Jobs in the Garden (PDF) Fall: The average date of the first frost ... It teases us with warm weather one day and frost the next. ... Average last frost ...Our “Day of the Last Spring Freeze” map, which is based on climatological research, can help answer that question for your area. ... of last spring frost. ... Published. March 29, ...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.by Stephen Albert. Sharing is caring! Facebook. Twitter. The last frost date in spring and the first frost date in autumn mark the beginning and end … 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.Average Last Frost Date; Aberdeen: May 1 - May 10: Aberystwyth: May 11 - May 20: Andover: Apr. 21 - Apr. 30: Ballycastle: Apr. 21 - Apr. 30: Ballymena: Apr. 11 - Apr. …Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates ChartA 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 date of the last frost in spring is a day around which you can plan to start seeds indoors, sow seeds in the garden, and set transplants into the ...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... Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner 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.. Horn photo fresno

last frost day 2023

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 last frost date is a date that is given to be considered as the last time an overnight frost will occur in your local area. This date is particularly important for …Main navigation. Weather Weather sub-navigation. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner; Planting Dates ChartThe average depth of the frost line in Iowa is 58 inches. In the northern part of the state, the frost line can be up to 70 inches deep, while in the southern part the line may be ...National parks will waive entry fees on Martin Luther King Day, Veterans Day, and three other special days during 2020 to make parks more accessible. As has become a National Parks... Probability of later date in spring (thru Jul 31) than indicated. Probability of earlier date in fall (beginning Aug 1) than indicated. Probability of longer than indicated freeze free period. Probability of Freeze/Frost in the yearly period (percent of days with temperatures at or below the threshold temperature). 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. 5-Day Forecast; Long-Range Forecast; Spring Forecast 2024; Frost Dates; Weather History; Gardening Gardening sub-navigation. Garden Planner 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 North Georgia Mountains experience the latest last frost occurring in late April thru early May while The coastal areas eperience last frost in mid February to early March. Last Frost Dates were calculated using daily climate data from the period between 1991-2020. Related Pages.Dec 11, 2020 · The average date of the last frost. The average date of the last frost in spring is a day around which you can plan to start seeds indoors, sow seeds in the garden, and set transplants into the garden. The average date of the last frost in your garden or region is an approximation. It is a date based on an average of the last frost date for ... 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 First Frost Date; Acton: May 1 - May 10: Actons Corners: May 11 - May 20: Ajax: May 11 - May 20: Alexandria: May 11 - May 20: Alliston: May 11 - May 20: …List of Average Last Frost Dates for Cities and Towns in New Brunswick. Location. Average Last Frost Date. Bathurst. May 11 - May 20. Beresford. May 11 - May 20. Bouctouche. May 21 - May 31.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. Jun. 1 - Jun. 10. Zone 12. Jun. 11 - Jun. 20. Zone 13. Jun. 21 - Jun. 30. + -. Leaflet | ©Plantmaps ©OpenStreetMap Contributors. Plantmaps has derived zones indicating the Interactive map of average annual Last frost dates for the province of Ontario. Average Last Frost Date. Average First Frost Date. Zone 1. May 22-June 4. August 25-31. Zone 2. May 15-22. September 1-8. Zone 3.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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