All states Montana
Frost dates in Montana
The typical last spring frost and first fall frost for 184 places in Montana. Each page has the chance of frost by date and when to plant.
Places in Montana
| Place | Last spring frost | First fall frost |
|---|---|---|
| Adel | June 4 | September 12 |
| Alberton | May 18 | September 25 |
| Albion | June 2 | September 6 |
| Alder | June 6 | September 14 |
| Anaconda-Deer Lodge County | June 1 | September 14 |
| Austin | June 4 | September 14 |
| Baker | May 12 | September 26 |
| Baker | May 16 | September 26 |
| Belgrade | May 26 | September 16 |
| Belt | May 22 | September 23 |
| Biddle | May 14 | September 28 |
| Big Sandy | May 17 | September 25 |
| Big Timber | May 14 | September 26 |
| Bigfork | May 1 | October 15 |
| Billings | May 4 | October 7 |
| Billings Wtp | May 10 | October 1 |
| Blackleaf | June 9 | September 3 |
| Boulder | June 7 | September 8 |
| Bozeman | May 26 | September 22 |
| Bozeman Exp Farm | May 23 | September 23 |
| Brady (The Knees) | May 13 | September 29 |
| Brandenberg | May 18 | September 22 |
| Bridger | May 14 | September 24 |
| Broadus | May 16 | September 28 |
| Brockway | May 20 | September 19 |
| Busby | May 23 | September 15 |
| Butte-Silver Bow | June 13 | September 5 |
| Bynum | May 16 | September 27 |
| Carlyle | May 18 | September 29 |
| Carter | May 23 | September 23 |
| Cascade | June 2 | September 10 |
| Chester | May 24 | September 17 |
| Chinook | May 14 | September 23 |
| Chinook | May 23 | September 23 |
| Choteau | May 20 | September 22 |
| Circle | May 17 | September 22 |
| Clyde Park | June 4 | September 6 |
| Cohagen | May 25 | September 14 |
| Colstrip | May 15 | September 30 |
| Columbus | May 27 | September 14 |
| Conrad | May 20 | September 19 |
| Creston | May 12 | September 25 |
| Culbertson | May 21 | September 20 |
| Cut Bank | May 24 | September 15 |
| Darby | May 24 | September 23 |
| Deer Lodge | June 9 | September 8 |
| Denton | June 1 | September 11 |
| Dillon | June 5 | September 13 |
| Divide | June 10 | September 7 |
| Dodson | May 24 | September 22 |
| Dunkirk | May 23 | September 14 |
| E Glacier | June 8 | September 5 |
| Ekalaka | May 20 | September 23 |
| Ennis | June 16 | September 4 |
| Eureka | May 11 | September 27 |
| Fairfield | May 13 | September 27 |
| Forsyth | May 9 | September 29 |
| Fort Benton | May 15 | September 22 |
| Fort Peck | May 8 | October 1 |
| Fortine | May 16 | September 18 |
| Ft Belknap | May 16 | September 22 |
| Gardiner | May 21 | September 27 |
| Geraldine | May 14 | September 26 |
| Gibson Dam | June 12 | September 8 |
| Glasgow | May 3 | October 1 |
| Glendive | May 3 | October 4 |
| Great Falls | May 6 | October 1 |
| Great Falls Wfo | May 12 | September 28 |
| Hamilton | May 21 | September 22 |
| Hardin | May 13 | September 29 |
| Harlem | May 16 | September 21 |
| Harlowton | May 23 | September 16 |
| Havre | May 15 | September 23 |
| Helena | May 9 | September 30 |
| Heron | May 20 | September 20 |
| Highwood | May 7 | October 2 |
| Hingham | May 24 | September 15 |
| Hinsdale | May 15 | September 26 |
| Hot Springs | May 15 | September 28 |
| Hungry Horse Dam | May 9 | October 1 |
| Huntley Exp Stn | May 12 | September 25 |
| Hysham | May 10 | September 29 |
| Hysham | May 26 | September 16 |
| Ingomar | May 21 | September 19 |
| Joliet | May 29 | September 15 |
| Joplin | May 21 | September 19 |
| Jordan | May 21 | September 18 |
| Jordan | May 18 | September 20 |
| Judith Gap | June 1 | September 15 |
| Kalispell | May 31 | September 10 |
| Laurel | May 5 | October 3 |
| Lavina | May 22 | September 15 |
| Lewistown | May 14 | September 28 |
| Lewistown | May 31 | September 14 |
| Lewistown | June 15 | September 4 |
| Libby | May 11 | October 1 |
| Lima | June 11 | September 10 |
| Lindbergh Lake | May 20 | September 22 |
| Livingston | May 19 | September 25 |
| Livingston | May 27 | September 14 |
| Lodge Grass | May 21 | September 17 |
| Loma | May 20 | September 19 |
| Malta | May 16 | September 23 |
| Malta | May 15 | September 23 |
| Manhattan | May 26 | September 15 |
| Martinsdale | June 3 | September 8 |
| Medicine Lake | May 16 | September 18 |
| Melstone | May 10 | September 29 |
| Melville | June 9 | September 7 |
| Mildred | May 20 | September 22 |
| Miles City | May 8 | September 30 |
| Missoula | May 10 | October 1 |
| Missoula | May 16 | September 26 |
| Missoula Wfo | May 6 | October 4 |
| Mizpah | May 22 | September 15 |
| Moore | May 28 | September 20 |
| Mosby | May 5 | October 4 |
| Mystic Lake | June 5 | September 14 |
| Nashua | May 12 | September 24 |
| Neihart | June 6 | September 12 |
| Norris Madison Pwr House | April 30 | October 10 |
| Nye #2 | June 1 | September 11 |
| Opheim | June 1 | September 7 |
| Opheim | June 5 | September 2 |
| Outlook | May 28 | September 7 |
| Pinesdale | May 23 | September 21 |
| Plains | May 17 | September 23 |
| Plentywood | May 25 | September 14 |
| Plevna | May 21 | September 20 |
| Polson | May 10 | October 5 |
| Pompeys Pillar | May 22 | September 22 |
| Poplar | May 24 | September 14 |
| Port Of Morgan | May 19 | September 22 |
| Powderville | May 13 | September 25 |
| Rapelje | May 24 | September 21 |
| Raymond Border Stn | May 19 | September 23 |
| Red Lodge | June 3 | September 19 |
| Richey | May 16 | September 22 |
| Ridgeway | May 17 | September 22 |
| Rock Springs | May 15 | September 25 |
| Rogers Pass | May 21 | September 15 |
| Roundup | May 20 | September 21 |
| Roy | May 14 | September 24 |
| Rudyard | May 30 | September 11 |
| Ryegate | May 17 | September 23 |
| Ryegate | May 26 | September 18 |
| Savage | May 12 | September 25 |
| Scobey | May 28 | September 6 |
| Shelby | May 23 | September 16 |
| Sheridan | May 24 | September 22 |
| Sidney | May 11 | September 27 |
| Sonnette | May 25 | September 19 |
| St Marie | May 13 | September 27 |
| St. Ignatius | May 12 | October 2 |
| St. Mary | June 3 | September 8 |
| Stanford | May 25 | September 21 |
| Stevensville | May 22 | September 19 |
| Sunburst | May 17 | September 25 |
| Swan Lake | May 17 | September 19 |
| Terry | May 12 | September 28 |
| Terry | May 26 | September 17 |
| Thompson Falls | May 7 | October 4 |
| Three Forks | May 9 | September 27 |
| Tiber Dam | May 16 | September 23 |
| Tizer Gardens | June 18 | September 5 |
| Townsend | May 19 | September 19 |
| Trout Creek Rs | May 20 | September 21 |
| Troy | May 14 | September 25 |
| Turner | May 19 | September 21 |
| Twin Bridges | June 8 | September 2 |
| Valentine | May 18 | September 21 |
| Valier | May 17 | September 24 |
| Virginia City | June 4 | September 18 |
| W Glacier | May 18 | September 20 |
| West Yellowstone | June 15 | September 10 |
| Westby | May 18 | September 21 |
| White Sulphur Springs | June 4 | September 11 |
| Whitefish | May 16 | September 25 |
| Wibaux | May 27 | September 16 |
| Winifred | May 16 | September 23 |
| Winnett | May 20 | September 24 |
| Wolf Point | May 8 | September 28 |
| Yellowtail Dam | May 7 | October 5 |
| Zortman | May 18 | September 23 |
Typical year: frost is over (spring) or has come (fall) by that date in half of years. "n/a" means frost is too rare there to give a date.