Last frost dates in North Dakota

Typical last frost
May 10

That is the date for the typical North Dakota resident, weighted by city population. Across the state the average last frost runs from May 4 to May 21, so look up your own town below.

Earliest city
May 4
Latest city
May 21
Typical first frost
Oct 1
Cities
8
This week in North Dakota

Frost in the forecast for 8 of 8 cities

National Weather Service forecast, updated Oct 22, 11:10 UTC

May 1May 15NSFargo: May 4FargoBismarck: May 10BismarckGrand Forks: May 10Grand ForksMinot: May 10MinotWest Fargo: May 4Williston: May 21WillistonDickinson: May 20DickinsonMandan: May 13
Each dot is a city: further right means a later last frost, higher up means further north. Bigger dots are bigger cities.

Frost dates by city

CityLast frostSafe afterFirst frostSeason
FargoMay 4May 18Oct 2151 days
BismarckMay 10May 23Sep 30142 days
Grand ForksMay 10May 24Oct 1144 days
MinotMay 10May 22Oct 1144 days
West FargoMay 4May 18Oct 2151 days
WillistonMay 21Jun 3Sep 21123 days
DickinsonMay 20Jun 1Sep 22123 days
MandanMay 13May 26Sep 27136 days

When to plant in North Dakota

Questions

When is the last frost in North Dakota?

It depends on where you are. Across the 8 cities we track, the average last frost runs from May 4 to May 21. In Fargo, the largest, it is May 4.

When is the first frost in North Dakota?

For a typical resident, around October 1. Higher and more northern towns get it earlier.