46.8772°N/96.7898°W
When to plant in Fargo
North Dakota, United States · Continental, warm summer (Köppen Dfb)
Last spring frost · safe
May 20
~10% frost risk · typical May 11
First fall frost · safe
Sep 20
~10% frost risk · typical Oct 2
Frost-free days
144
May 11 → Oct 2
Climate zone
Continental, warm summer
Köppen Dfb
89/100 confidence
◇ Station-based
The frost date shown is the safe date (~10% frost risk); the typical median is shown alongside. Your microclimate can shift things ±1–2 weeks.
The growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
GROWING SEASON — 144 DAYS
MAY 11
OCT 2
Full crop calendar
Source: Curated · based on NOAA GHCN-Daily 1991–2020 normal · Köppen–Geiger classification (Beck et al. 2023) · crop windows from FAO ECOCROP references. How we calculate this →
Also see frost dates for Fargo.