There’s a reason why people look for the first and last frost dates in their area. Many gardeners, including myself, plan their gardens around these dates. In the north, the spring frost signals the beginning of the growing season while the fall frost signals the end. These dates are also called the first and last average frost dates with the last occurring in the spring and the first in fall.
List of Average Frost Dates in the North
Scroll down to find your state and the city nearest you for the average first and last frost dates in your area. The first date listed is the average frost date for the spring and the last is for the fall.
Average New EnglandFrost Dates
Maine
Augusta:4/27/13 – 10/8/12
Bangor:5/7/13 – 10/7/12
Portland: 5/2/13 – 10/6/12
Presquile: 4/21/13- 9/20/12
New Hampshire
Berlin:5/20/13 – 9/21/12
Concord:5/20/13 – 9/21/12
Keene: 5/13/13 – 9/26/12
Nashua:5/7/13 – 10/3/12
Vermont
Burlington:5/8/13 – 10/3/12
Montpelier:5/11/13 – 10/1/12
Rutland:5/13/13 – 9/28/12
Massachusetts
Boston:4/7/13 – 11/7/12
New Bedford: 4/13/13 – 11/2/12
Worcester:4/26/13 – 11/14/12
Vermont
Burlington:5/8/13 – 10/3/12
Montpelier:5/11/13 – 10/1/12
Rutland:5/13/13 – 9/28/12
Rhode Island
Kingston:5/8/13 – 10/3/12
Providence:4/16/13 – 10/22/12
Connecticut
Danbury:5/1/13 – 10/9/12
Hartford:4/26/13 – 10/9/12
Stamford:4/29/13 – 10/17/12
Average Frost Dates for the Mid Atlantic (North)
New York
Albany: 5/2/13 - 10/3/12
Buffalo: 4/24/13 - 10/19/12
Elmira: 5/9/13 - 10/3/12
Lake Placid: 6/7/13 - 9/11/12
New York City: 4/1/13 - 11/15/12
Syracuse: 4/28/13 - 10/13/12
New Jersey
Atlantic City: 3/31/13 - 11/11/12
Cape May: 4/6/13 - 11/6/12
New Brunswick: 4/20/13 - 10/20/12
Newark: 4/3/13 - 11/7/12
Pennsylvania
Erie: 4/29/13 - 10/29/12
Lebanon: 4/27/13 - 10/13/12
Philadelphia: 4/6/13 - 11/4/12
Pittsburgh: 4/29/13 - 10/17/12
Wilkes Barre: 4/26/13 - 10/16/12
Average Frost Dates for the Midwest(North)
Wisconsin
Appleton:5/4/13 – 10/7/12
Eau Claire: 5/7/13 – 9/29/12
Madison:5/10/13 – 10/2/12
Milwaukee:4/27/13 – 10/14/12
Indiana
Evansville:4/3/13 – 11/3/12
Indianapolis:4/18/13 – 10/18/12
South Bend: 4/26/13 – 10/19/12
Terra Haute: 4/20/13 – 10/15/12
Illinois
Chicago:4/20/13 – 10/24/12
Mount Vernon: 4/14/13 – 10/14/12
Quincy:4/10/13 – 10/22/12
Springfield:4/13/13 – 10/13/12
Ohio
Cincinnati:4/13/13 – 10/23/12
Cleveland:4/30/13 – 10/23/12
Columbus:4/26/13 – 10/13/12
Toledo:5/1/13 – 10/8/12
Michigan
Cheboygan: 5/18/13 – 10/10/12
Detroit:4/26/13 – 10/17/12
Grand Rapids: 5/5/13 – 10/8/12
Marquette:5/11/13 – 10/13/12
Missouri
Jefferson City: 4/13/13 – 10/18/12
Kansas City: 4/7/13 – 10/28/12
Poplar Bluff: 4/4/13 – 10/28/12
St. Louis: 4/7/13 – 10/29/12
North Dakota
Bismarck:5/14/13 – 9/21/12
Fargo:5/10/13 – 9/27/12
Grand Forks: 5/10/13 – 9/27/12
Minot:5/9/13 – 9/28/12
South Dakota
Hot Springs: 5/16/13 – 9/20/12
Pierre:5/2/13 – 10/3/12
Sioux Falls: 5/3/13 – 9/28/12
Watertown:5/10/13 – 9/25/12
Minnesota
Baudette: 5/16/13 – 9/21/12
Duluth:5/15/13 – 10/17/12
Minneapolis:4/30/13 – 10/5/12
Willmar:4/30/13 – 10/1/12
Nebraska
Grand Island: 4/26/13 – 10/8/12
North Platte: 5/5/13– 10/4/12
Omaha:4/21/13 – 10/12/12
Scottsbluff: 5/3/13 – 9/27/12
Iowa
Cedar Rapids: 4/25/13- 10/6/12
Des Moines: 4/20/13– 10/12/12
Fort Dodge: 4/29/13 – 10/4/12
Sioux City: 4/26/13 – 10/3/12
Average Frost Dates for the West (North)
Idaho
Boise:5/5/13 – 10/8/12
Idaho Falls: 5/27/13 – 9/20/12
Moscow:5/25/13 – 9/20/12
Salmon: 5/25/13 – 9/20/12
Montana
Billings:5/8/13 – 9/27/12
Bozeman:5/26/13 – 9/19/12
Glendive: 5/2/13 – 9/29/12
Great Falls: 5/17/13 – 9/22/12
Helena:5/19/13 – 9/18/12
Wyoming
Casper:5/22/13 – 9/19/12
Cheyenne:5/12/13 – 9/26/12
Gillette: 5/18/13 – 9/22/12
Alaska
Anchorage:5/8/13 – 9/23/12
Fairbanks:5/15/13 – 9/8/12
Juneau:5/8/13 – 10/4/12
Nome:6/11/13 – 8/31/12
Washington
Olympia:5/5/13 – 10/6/12
Seattle: 3/10/13 – 11/17/12
Spokane:5/2/13 – 10/3/12
Vancouver:4/20/13 – 10/15/12
Oregon
Baker: 6/3/13 – 9/13/12
Eugene:4/22/13– 10/19/12
Klamath Falls: 6/7/13 – 9/18/12
Portland:3/23/13 – 11/15/12
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