First and last frost dates in North Dakota
Compare median spring and fall freeze dates for 47 locations in North Dakota. Open a city guide for station details and risk levels.
| Location | Last spring freeze | First fall freeze | Days between | Guide |
|---|---|---|---|---|
| Belcourt | May 19 | September 24 | 128 days | |
| Belfield | May 9 | September 30 | 144 days | |
| Beulah | May 21 | September 20 | 122 days | |
| Bottineau | May 15 | September 25 | 133 days | |
| Bowman | May 16 | September 25 | 132 days | |
| Burlington | May 10 | October 1 | 144 days | |
| Carrington | May 10 | September 28 | 141 days | |
| Casselton | May 9 | October 1 | 145 days | |
| Cavalier | May 12 | September 30 | 141 days | |
| Crosby | May 17 | September 23 | 129 days | |
| Devils Lake | May 6 | October 5 | 152 days | |
| Dickinson | May 20 | September 22 | 125 days | |
| Ellendale | May 4 | October 2 | 151 days | |
| Fort Totten | May 12 | September 30 | 141 days | |
| Garrison | May 12 | September 30 | 141 days | |
| Grafton | May 4 | October 7 | 156 days | |
| Grand Forks | May 10 | October 1 | 144 days | |
| Grand Forks Air Force Base | May 16 | September 27 | 134 days | |
| Harvey | May 12 | September 26 | 137 days | |
| Hettinger | May 21 | September 21 | 123 days | |
| Hillsboro | May 2 | October 9 | 160 days | |
| Jamestown | May 11 | September 28 | 140 days | |
| Kenmare | May 15 | September 23 | 131 days | |
| Killdeer | May 21 | September 23 | 125 days | |
| Langdon | May 17 | September 26 | 132 days | |
| Larimore | May 11 | September 28 | 140 days | |
| Lincoln | May 14 | September 30 | 139 days | |
| Linton | May 12 | September 29 | 140 days | |
| Mandan | May 13 | September 27 | 137 days | |
| Mayville | May 13 | September 27 | 137 days | |
| Minot | May 10 | October 1 | 144 days | |
| Minot Air Force Base | May 11 | September 29 | 141 days | |
| New Rockford | May 12 | September 27 | 138 days | |
| New Town | May 20 | September 20 | 123 days | |
| Oakes | May 8 | September 28 | 143 days | |
| Park River | May 4 | October 7 | 156 days | |
| Rolla | May 20 | September 26 | 129 days | |
| Rugby | May 17 | September 23 | 129 days | |
| Shell Valley | May 19 | September 24 | 128 days | |
| Stanley | May 17 | September 23 | 129 days | |
| Surrey | May 10 | October 1 | 144 days | |
| Tioga | May 11 | September 26 | 138 days | |
| Valley City | May 13 | September 26 | 136 days | |
| Velva | May 22 | September 22 | 123 days | |
| Wahpeton | May 4 | October 3 | 152 days | |
| Washburn | May 12 | September 30 | 141 days | |
| Watford City | May 9 | September 27 | 141 days |
Median dates at nearby stations, using a 32°F (0°C) threshold. The interval is calculated from the two median dates, not a guarantee of frost-free weather. Read the methodology.