First and last frost dates in Alaska
Compare median spring and fall freeze dates for 55 locations in Alaska. Open a city guide for station details and risk levels.
| Location | Last spring freeze | First fall freeze | Days between | Guide |
|---|---|---|---|---|
| Anchorage | May 1 | September 29 | 151 days | |
| Badger | May 22 | September 2 | 103 days | |
| Bear Creek | May 2 | October 7 | 158 days | |
| Bethel | May 21 | September 22 | 124 days | |
| Big Lake | May 29 | September 7 | 101 days | |
| Butte | April 24 | October 4 | 163 days | |
| Cohoe | June 11 | September 1 | 82 days | |
| College | May 18 | September 6 | 111 days | |
| Craig | April 14 | November 1 | 201 days | |
| Dutch Harbor | May 6 | October 18 | 165 days | |
| Eagle River | May 9 | September 26 | 140 days | |
| Eielson Air Force Base | May 20 | September 1 | 104 days | |
| Elmendorf Air Force Base | May 9 | September 26 | 140 days | |
| Ester | May 24 | September 1 | 100 days | |
| Fairbanks | May 16 | September 6 | 113 days | |
| Fishhook | May 18 | September 18 | 123 days | |
| Funny River | May 20 | September 21 | 124 days | |
| Gateway | May 14 | September 20 | 129 days | |
| Girdwood | May 8 | September 29 | 144 days | |
| Haines | April 30 | October 7 | 160 days | |
| Healy | May 27 | September 1 | 97 days | |
| Homer | May 10 | September 29 | 142 days | |
| Houston | May 29 | September 7 | 101 days | |
| Juneau | April 20 | October 22 | 185 days | |
| Kalifornsky | June 11 | September 1 | 82 days | |
| Kenai | May 24 | September 12 | 111 days | |
| Ketchikan | April 4 | November 9 | 219 days | |
| King Cove | May 25 | October 4 | 132 days | |
| Knik-Fairview | May 18 | September 20 | 125 days | |
| Kodiak | April 29 | October 14 | 168 days | |
| Kotzebue | June 5 | September 24 | 111 days | |
| Lakes | May 16 | September 23 | 130 days | |
| Meadow Lakes | May 16 | September 23 | 130 days | |
| Metlakatla | April 14 | October 25 | 194 days | |
| Nikiski | May 18 | September 22 | 127 days | |
| Nome | June 5 | September 3 | 90 days | |
| North Pole | May 22 | September 2 | 103 days | |
| Palmer | May 6 | September 25 | 142 days | |
| Petersburg | April 29 | October 17 | 171 days | |
| Ridgeway | May 24 | September 12 | 111 days | |
| Salcha | May 20 | September 1 | 104 days | |
| Sand Point | May 11 | October 18 | 160 days | |
| Seward | May 2 | October 7 | 158 days | |
| Sitka | May 3 | October 18 | 168 days | |
| Skagway | May 6 | October 1 | 148 days | |
| Soldotna | May 20 | September 21 | 124 days | |
| Sterling | May 20 | September 21 | 124 days | |
| Sutton-Alpine | June 1 | September 6 | 97 days | |
| Tanaina | May 16 | September 23 | 130 days | |
| Tok | June 3 | August 27 | 85 days | |
| Unalaska | May 6 | October 18 | 165 days | |
| Valdez | April 30 | October 2 | 155 days | |
| Wasilla | May 16 | September 23 | 130 days | |
| Willow | May 15 | September 18 | 126 days | |
| Wrangell | April 11 | November 1 | 204 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.