Frost Dates for the USA
Dates of the First and Last Frosts in the USA
Dates are given based upon when a 50% chance that the first or last frost of the year has occurred.
If you want to be conservative or take a risk then add or subtract an extra two weeks to the date of the first or last frosts.
Flower in the frost by Gabriel Anast.
Note:
Early = 1st to 10th of the month
Mid = 11th to 20th of the month
Late = 21st to 31st of the month
State |
City |
Average date of last frost |
Average date of first frost |
| Alabama | Birmingham | Early April | Early November |
| Montgomery | Mid March | Mid November | |
| Mobile | Late Feburary | Late November | |
| Tuscaloosa | Early April | Early November | |
| Alaska | Anchorage | Mid May | Late September |
| Faibanks | Mid May | Early September | |
| Arizona | Phoenix | Mid December | Late January |
| Tucson | Mid Feburary | Late November | |
| Chandler | Mid Feburary | Late November | |
| Arkansas | Little Rock | Late March | Mid November |
| Fort Smith | Late March | Late October | |
| California | Los Angeles | No frost likely | No frost likely |
| San Francisco | Late January (10% chance of frost) | Mid December (10% chance of frost) | |
| Sacramento | Mid Feburary | Early December | |
| Tahoe City | Mid June | Mid September | |
| Colorado | Denver | Late April | Early October |
| Colorado Springs | Early May | Early October | |
| Lakewood | Early May | Early October | |
| Connecticut | Bridgeport | Mid April | Early November |
| Hartford | Late April | Early October | |
| Delaware | Wilmington | Mid April | Late October |
| District of Columbia | Washington DC | Late March | Mid November |
| Florida | Jacksonville | Late Feburary | Early December |
| Miami | Mid January (only 10% chance of a frost in a given year) | Late January (only 10% chance of a frost in a given year) | |
| Tampa | Late January (low chance of a frost) | Early January (low chance of a frost) | |
| Georgia | Atlanta | Late March | Mid November |
| Columbus | Mid March | Mid November | |
| Savannah | Early March | Late November | |
| Hawaii | Honolulu | No expected frost | No expected frost |
| Hilo | No expected frost | No expected frost | |
| Idaho | Boise | Mid May | Early October |
| Idaho Falls | Late June | Late August | |
| Illinois | Chicago | Late April | Mid October |
| Aurora | Late April | Early October | |
| Rockford | Late April | Early October | |
| Indiana | Indianapolis | Mid April | Mid October |
| Fort Wayne | Late April | Mid October | |
| Evansville | Mid April | Late October | |
| Iowa | Des Moines | Mid April | Mid October |
| Cedar Rapids | Late April | Early October | |
| Sioux City | Late April | Early October | |
| Kansas | Wichita | Mid April | Late October |
| Topeka | Mid April | Mid October | |
| Olathe | Early April | Late October | |
| Kentucky | Lexington | Mid April | Late October |
| Louisville | Early April | Early November | |
| Bowling Green | Mid April | Late October | |
| Louisiana | New Orleans | Mid Feburary | Mid December |
| Baton Rouge | Late feburary | Late November | |
| Shreveport | Mid March | Mid November | |
| Lafayette | Mid Feburary | Early December | |
| Maine | Portland | Early May | Early October |
| Lewiston | Late April | Mid October | |
| Maryland | Baltimore | Mid April | Late October |
| Rockville | Mid April | Late October | |
| Massachusetts | Boston | Early April | Early November |
| Worcester | Late April | Mid October | |
| Lowell | Late April | Early October | |
| Michigan | Detroit | Late April | Mid October |
| Grand Rapids | Early May | Early October | |
| Flint | Early May | Mid October | |
| Minnesota | Minneapolis | Late April | Early October |
| St Paul | Late April | Early October | |
| Rochester | Early May | Early October | |
| Duluth | Late May | Late September | |
| Mississippi | Jackson | Late March | Early November |
| Gulfport | Late Feburary | Early December | |
| Biloxi | Late feburary | Early December | |
| Missouri | Kansas City | Early April | Late October |
| Saint Louis | Early April | Late October | |
| Springfield | Mid April | Late October | |
| Montana | Billings | Early May | Early October |
| Missoula | Late May | Mid September | |
| Great Falls | Mid May | Late September | |
| Nebraska | Omaha | Late April | Early October |
| Lincoln | Late April | Early October | |
| Grand Island | Late April | Early October | |
| Nevada | Las Vegas | Mid Feburary | Late November |
| Paradise Valley | Mid June | Early September | |
| Reno | Late May | Early October | |
| Lovelock | Mid May | Late September | |
| New Hampshire | Durham | Mid May | Late September |
| Nashua | Early May | Early October | |
| Hannover | Mid May | Early October | |
| Concord | Mid May | Late September | |
| New Jersey | Newark | Early April | Early November |
| Toms River | Late April | Mid October | |
| New Mexico | Albuquerque | Mid April | Late October |
| Santa Fe | Early May | Mid October | |
| New York | New York City | Early April | Late November |
| Long island | Late March | Mid November | |
| Ithaca | Mid May | Early October | |
| Syracuse | Late April | Mid October | |
| Rochester | Late April | Mid October | |
| Buffalo | Late April | Mid October | |
| Albany | Early May | Early October | |
| North Carolina | Charlottte | Late March | Early November |
| Raleigh | Early April | Early November | |
| Durham | Early April | Late October | |
| Fayetteville | Late March | Early November | |
| North Dakota | Fargo | Mid May | Late September |
| Bismarck | Mid May | Late September | |
| Grand Forks | Mid May | Mid September | |
| Ohio | Columbus | Late April | Mid October |
| Cleveland | Late April | Late October | |
| Toledo | Early May | Early October | |
| Cincinnati | Mid April | Late October | |
| Oklahoma | Oklahoma City | Early April | Early November |
| Tulsa | Late March | Early November | |
| Norman | Early April | Early November | |
| Oregon | Portland | Late March | Mid November |
| Salem | Late April | Mid October | |
| Eugene | Late April | Mid October | |
| Pennsylvania | Philadelphia | Early April | Early November |
| Pittsburgh | Late April | Mid October | |
| Allentown | Mid April | Mid October | |
| Erie | Late April | Late October | |
| Rhode Island | Providence | Mid April | Late October |
| Kingston | Early May | Early October | |
| South Carolina | Columbia | Early April | Early November |
| Charleston | Early March | Late November | |
| Greenville | Early April | Early November | |
| South Dakota | Sioux Falls | Early May | Late September |
| Rapid City | Early May | Late September | |
| Aberdeen | Early May | Late September | |
| Tennessee | Memphis | Mid March | Mid November |
| Nashville | Early April | Late October | |
| Knoxville | Early April | Early November | |
| Chattanooga | Early April | Early November | |
| Texas | Houston | Early March | Late November |
| San Antonio | Late Feburary | Late November | |
| Dallas | Early March | Late November | |
| Austin | Mid Feburary | Early December | |
| El Paso | Late March | Early November | |
| Utah | Salt Lake City | Mid April | Late October |
| Ogden | Early May | Mid October | |
| Vermont | Burlington | Early May | Early October |
| Essex Junction | Mid May | Late September | |
| Virginia | Norfolk | Mid March | Late November |
| Richmond | Early April | Late October | |
| Washington | Seattle | Early March | Mid November |
| Spokane | Early May | Early October | |
| Vancouver | Mid April | Mid October | |
| West Virginia | Charleston | Late April | Late October |
| Huntington | Mid April | Late October | |
| Parkersburg | Late April | Mid October | |
| Wisconsin | Milwaukee | Late April | Mid October |
| Madison | Early May | Early October | |
| Green Bay | Early May | Early October | |
| Wyoming | Cheyenne | Mid May | Late September |
| Casper | Late May | Mid September | |
| Laramie | Early June | Mid September |
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I hope that you found this guide on Frost Dates for your garden. You may also enjoy my gardening guides on how to attract butterflies to the garden, and Growing Regions and Zones.
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