Montana frost dates: N

City	Last frost	First frost	Season	Zone
Nashua	May 12	Sep 24	135 d	4a
Neihart	Jun 6	Sep 12	98 d	4b
Norris	Apr 30	Oct 10	163 d	5a
Noxon	May 20	Sep 20	123 d	6a
Nye	Jun 1	Sep 11	102 d	5a