First frost date iowa 2023

In freeze date tables for locations noted on the map, a set of probabilities is provided for various temperature thresholds in spring and fall. For example: viewing a "Spring Freeze Dates" table, along the "32" degrees row, and under the ".70" probability column, one might see "4/19". This means that for this location, there is a 70% chance of ...

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 ...In this case most of the state is May 11-20, with about one-fourth of the state being earlier than May 11th, and a small area in northeast Iowa that can see last freezes up until May 31st. Figure 2. Iowa Soil Temperatures at 4 inches, April 16, 2024. Figure 3. Forecast Soil Temperatures at the 4-inch Depth for April 21, 2024.Apr 19. Apr 13. Apr 9. Apr 4. Mar 29. The chart indicates a 10% chance that the temperature will go down to 32 ° F on April 19. There is a 90% chance of 32 ° F on March 29. In other words, April 19 has a lower probability of a freeze and would be a "safer" planting date. You would still have to monitor your local weather forecast.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 ...Depending on the type of clover, it takes roughly 7 to 15 days to grow clover from seed indoors and then transplant them to your garden. And then another 10 to 12 weeks to bloom! For a specific date that you should start clover seeds indoors you should: Find the last average frost date HERE. And then subtract 7 days from it.Are you a fan of adventure and scenic views? If so, then you’re in for a treat. In this article, we will take you on a journey through the picturesque landscapes of Iowa as we expl...

First Frost Dates were calculated using daily climate data from the period between 1991-2020. Related Pages List of Average First Frost Dates for Locations in TennesseeSomeone who wants to take care of a pygmy date palm tree should avoid watering it too much, not over prune it and use fertilizers that develop the right soil environment. In additi...Depending on the type of shallot, it takes roughly 60-70 days to grow shallot from seed indoors and then transplant them to your garden. For a specific date that you should start shallot seeds indoors you should: Find the last average frost date HERE. And then subtract 70 days from it.Sep 22. Sep 25. Sep 28. Sep 30. Oct 2. Oct 5. Oct 7. Oct 11. Now that you know your frost dates, use our Garden Planting Calendar for Cedar Rapids, Iowa to know when to sow and transplant your various vegetable plants!Frost becomes more widespread when the temperature falls below 32°F with some freeze possible. A hard freeze is possible when temperatures fall below 28°F. In the 32F/28F Freeze Maps section, you'll find national and regional maps from the Midwest Regional Climate Center (MRCC) that depict the typical dates for freezes in the early fall, 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...2024 First and Last Frost Dates for Places in New JerseyA 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...Depending on the type of flowers, it takes roughly 40-80 days to grow flowers from seed indoors and then transplant them to your garden. For a specific date that you should start flower seeds indoors you should: Find the first or last average frost date HERE. And then subtract 40 – 80 days from it. Not only this, but I recommend again …

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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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...The first Frost date is important in the vegetable garden calendar as this indicates the last harvest for the garden. Many vegetable plants will have already. ... 8 December 2022 8 April 2023. Updated on 8th April 2023 . First Frost Timing UK. Visit our seed shop to get your seeds. It features a comparison with Amazon to help you get the best ...Historical First/Last Killing Freeze (24°F) Dates including # of Killing Freeze-free Days. Oklahoma. (Courtesy of the Oklahoma Climatological Survey) Average Length of Growing Season. Number of Days with highs 32°F or colder. Number of Days with lows 32°F or colder. Average Date of: First 32°F. Last 32°F.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 …

Iowa Last & First Frost Dates. Unfortunately, Mother Nature plays cruel tricks on us every year. It should be noted that the above dates are just averages. ... February 2, 2023 . Here is the BEST Time to Fertilize Basil in Oklahoma (2023 Guide) February 17, 2023 .Sep 30. Oct 3. Oct 6. Oct 9. Oct 11. Oct 15. Oct 19. Now that you know your frost dates, use our Garden Planting Calendar for Iowa City, IA to know when to sow and transplant your various vegetable plants!The frost line in Indiana is the depth that groundwater in the soil freezes during the winter. The frost line depth in Indiana ranges from 30 to 60 inches, with 30 inches being the...Watching your favorite Iowa basketball team play live can be a great way to stay connected with the game. Whether you’re a die-hard fan or just looking for a way to keep up with th...The newly amended Canadian Hardiness Zone map is divided into ten major zones: the hardiest is 0 and the mildest is 9 (the southern tip of Vancouver Island). Relatively few plants are suited to zones 0 and 1. Frost dates are arranged by region and include the first frost date of the season and the final frost date of the 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...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 in the spring.The final column is a recap of LAST SPRING (2023), showing the last dates that 28°, 32° and 36° were observed. A blue-shaded date indicates that the last spring frost/freeze/hard freeze of 2023 occurred at least 10 days LATER than the 30-year average , while red-shaded dates indicate a last spring frost/freeze/hard freeze that was at least ...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 outdoors, when to transplant, and when 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. 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...

The earliest allowed date for corn planting in Iowa is April 10 th. This applies statewide. The earliest planting date for soybeans in Iowa is also April 10 th in southern Iowa counties (most southern three tiers of counties) and April 15 th for the rest of Iowa. Crops planted before the specified earliest planting date will not be eligible for ...Last and First Frost Dates for Georgia. The last frost dates in southern Georgia are March 1 to 31. The last frost dates in northern Georgia are April 1 to 30. The first frost dates in Georgia range from October 1 to November 30, depending on where you live. See the map of Estimated First Frost Date in 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. Someone who wants to take care of a pygmy date palm tree should avoid watering it too much, not over prune it and use fertilizers that develop the right soil environment. In additi...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 …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 ...Iowa Last & First Frost Dates. Unfortunately, Mother Nature plays cruel tricks on us every year. It should be noted that the above dates are just averages. ... January 18, 2023 . Here is the BEST Time to Fertilize Beets in Oregon (2023 Guide) October 19, 2022 .

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Here are the average last frost dates, average first frost dates, average days in the growing season, and USDA zone for several cities in the United States, Canada, and other parts of the world. United States. State and city Last frost First frost Days Zone. Alabama. Birmingham March 19 November 14 241 7B. 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 beets, it takes roughly 25-30 days to grow beets from seed indoors and then transplant them to your garden. For a specific date that you should start beets seeds indoors you should: Find the last average frost date HERE. And then subtract 30 days from it.First Frost Dates were calculated using daily climate data from the period between 1991-2020. Related Pages List of Average First Frost Dates for Locations in New Jersey In freeze date tables for locations noted on the map, a set of probabilities is provided for various temperature thresholds in spring and fall. For example: viewing a "Spring Freeze Dates" table, along the "32" degrees row, and under the ".70" probability column, one might see "4/19". This means that for this location, there is a 70% chance of ... 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ...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; Robin's Garden BlogThe first freeze can be described as when the surface air temperature is expected to be 32°F or below over a widespread area for a climatologically significant period of time. According to data, the first freeze in some high mountain and northern latitude locations can happen even earlier than August 31. A few of the coldest places can even ...Sep 9, 2022 · 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° Centigrade). However, a frost can occur even when air temperatures are just above freezing. Frost can damage young and newly planted plants, the new growth on established ... 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 … ….

Date of Late First 28° F Freeze: 7 Day Minimum Temperature Forecast: Tonight's Lows: Tomorrow Night's Lows ... Climatological First Freeze Data: Location. County. Elev. (ft) Early. Average. Late : 2023 33F-36F. 2023 29F-32F. 2023 <=28F : 2022 <=32F. 2021 <=32F. 2020 <=32F. 2019 <=32F. Clark 3NE (1961-2021) Park: 4090 ... Frost / Freeze ...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 ...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 outdoors, when …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; Robin's Garden BlogNov 17. Nov 20. Nov 23. Nov 26. Dec 1. Now that you know your frost dates, use our Garden Planting Calendar for Fresno, California to know when to sow and transplant your various vegetable plants!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 15. Said another way, you have a 1 in 5 chance at making it to that day without a 32° night. In the Fall.April 29, 2024. Spring has now arrived in all but the most northern and highest elevation parts of the U.S. After a slow start to spring in the southern part of the U.S., spring spread quickly across the central and northern parts of the country before slowing again in some Midwest states. Duluth, MN is 3 days early, Marquette, MI is 7 days ...First Frost Dates were calculated using daily climate data from the period between 1991-2020. Related Pages List of Average First Frost Dates for Locations in IllinoisA 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 ... First frost date iowa 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. 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. Severe freeze: 24°F (-4.4°C) and colder—heavy ..., Frost Dates for Des Moines, IA. 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 …, 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., Weather Why's. October 22, 2023 Zach Sharpe 0. When is the First Frost in Iowa? As the temperatures begin to cool, and the calendar turns to September, it is starting to come to …, Oct 10. Oct 13. Oct 16. Oct 19. Oct 23. Oct 26. Nov 1. Now that you know your frost dates, use our Garden Planting Calendar for Broken Arrow, Oklahoma 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 ..., Oct 5. Oct 8. Oct 11. Oct 14. Oct 19. Now that you know your frost dates, use our Garden Planting Calendar for Des Moines, Iowa to know when to sow and transplant your various vegetable plants! , McAlester - Oct 29. Idabel - Oct 29. Tulsa - Oct 30. Lawton - Oct 31. Ardmore - Nov 7. All in all, those look like some pretty normal dates compared to the almanac averages in our state. If your town isn't included above and you're curious, here's a quick link to the frost date prediction tool over at Farmer's Almanac., Here are the average last frost dates, average first frost dates, average days in the growing season, and USDA zone for several cities in the United States, Canada, and other parts of the world. United States. State and city Last frost First frost Days Zone. Alabama. Birmingham March 19 November 14 241 7B., Waterloo: Oct. 25, 1914. Dubuque: Oct. 28, 1963. Cedar Rapids: Oct. 28, 1963. Iowa City: Oct. 30, 1973. These are the first fall frost dates back through 2010., 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 …, 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., Eastern Iowa Predictions. The Waterloo municipal region is supposed to get hit with its first frost on October 4th, according to the Farmers' Almanac. Cedar Rapids residents will supposedly get their first fall frost several days later on October 7th. Dubuque will be getting a delayed first frost, with officials predicting the cold to sweep ..., 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. 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. 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. 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. Severe freeze: 24°F (-4.4°C) and …, Sep 28. Sep 30. Oct 2. Oct 4. Oct 7. Oct 9. Oct 13. Now that you know your frost dates, use our Garden Planting Calendar for Davenport, Iowa to know when to sow and transplant your various vegetable plants!, Well, you don't need a crystal ball to determine when the last frost may cover your newly potted plants. Instead, take a look at our Average Last Date of Spring Freeze map. Values were derived from the 1991-2020 U.S. Climate Normals —a database of 30-year averages of climatological variables, including temperatures., Oct 28, 2023 · At least minor damage is possible to plants. One must keep in mind that a frost is not guaranteed if the air is very dry and/or winds are roughly 8+ MPH. The range of average dates for the FIRST fall frost across most of. south central NE and north central KS is between Sep. 24 - Oct. 9. Freeze. , First Fall Frost. Growing Season. ANKENY, IA. 974'. Apr 29. Oct 9. 162 days. Last and first frost dates are 30% probability. Calculated using 1991-2020 Climate Normals from NOAA. , Sep 10, 2023 · Eastern Iowa Predictions. The Waterloo municipal region is supposed to get hit with its first frost on October 4th, according to the Farmers' Almanac. Cedar Rapids residents will supposedly get their first fall frost several days later on October 7th. , Planting early during the optimum window (April 11 to May 18) is generally a better practice than planting a after the optimum window. If possible, plant corn prior to May 18 to avoid this "slippery slope" of rapidly reducing yield potential. Figure 1. Observed trends of planting date on corn grain yield across Iowa. Soybean planting., 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 ..., Depending on the type of shallot, it takes roughly 60-70 days to grow shallot from seed indoors and then transplant them to your garden. For a specific date that you should start shallot seeds indoors you should: Find the last average frost date HERE. And then subtract 70 days from it., Frost becomes more widespread when the temperature falls below 32°F with some freeze possible. A hard freeze is possible when temperatures fall below 28°F. In the 32F/28F Freeze Maps section, you'll find national and regional maps from the Midwest Regional Climate Center (MRCC) that depict the typical dates for freezes in the early fall, and ..., If you’re looking for the best home warranty in Iowa, we’ve provided our recommendation of three home warranty companies that can protect your repair budget. Expert Advice On Impro..., 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 …, You have a small 20% chance of getting 32° by September 22. 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 8. 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. Severe freeze: 24°F (-4.4°C) and …