Frost dates · North Dakota
When is the first frost in Fargo?
In a typical year, Fargo’s first frost comes around September 30 and its last around May 10.
One year in ten the first frost comes as early as September 18, and nine years in ten it has arrived by October 15. One year in ten the last frost is over as early as April 27, and nine years in ten it is over by May 23. Fargo averages about 172 nights a year at 32°F or colder, with about 143 frost-free days in between in a typical year. It’s frost season here, and the last frost usually comes around May 10. That makes it the 7th earliest first frost of the 117 cities we track where it freezes most years.
Last updated
A freeze is in the forecast for the next 48 hours.
Fargo freezes on nearly half its nights, and spends the other half talking about the wind.
Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Frost dates, early, typical and late years
| Early year (1 in 10) | Typical | Late year (1 in 10) | |
|---|---|---|---|
| First frost | September 18 | September 30 | October 15 |
| Last frost | April 27 | May 10 | May 23 |
A frost date here is a night when the official thermometer reads 32°F or colder. Frost on the ground can show up on clear, calm nights a few degrees milder.
Cities with about the same first frost
- Helena, Montana: first frost around September 30
- Anchorage, Alaska: first frost around October 1
- Cheyenne, Wyoming: first frost around October 1
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00014914.