Dating by zipcode
As a gardener who worked so hard on your beautiful garden, it is important to know when you need to take steps to preserve perennials and harvest annuals so the cold weather will not destroy them.
Frost dates data will also tell you when you need to start seeds and help you choose the correct plants for your area that will grow best under the temperature conditions you experience.
It is difficult to estimate when you will experience the first or last frost of the year without using data gathered over many years by the USDA and NOAA (which we use in our tool above).
When temperatures drop to a range of 29-30 degrees Fahrenheit, a ‘light freeze' will damage delicate plants.
It is hard to pinpoint an exact date so it is wise to assume that freezing temperatures are possible two weeks before the first frost date and two weeks after the last.
The dates in-between the last and first frost dates are days when it is safe to plant and when you should harvest your last vegetables of the season.
As an extra precaution, it is a good idea to assume a difference of two weeks from scheduled frost dates so that you are not caught off-guard.
All you need to do is enter your zip code on top of this page and it will locate your area and tell you the estimated first and last frost dates.Frost dates can vary widely within each state and county so it is important to find the correct zone for exactly where you will be planting.Then, you can use this handy list to check the first and last frost dates for your zone.Scroll down further to find two tables, each giving the estimated dates for 90%, 50%, and 10% chance of frost before the first frost date or after the last frost date of the year.You can use these more specific ranges to maximize your gardening time during the year by pushing your planting earlier and your harvesting later. It is important to remember that these dates are simply estimates and cannot account for unusual weather events.