43.0600°N/141.3500°E
When to plant in Sapporo
Hokkaido, Japan · Continental, warm summer (Köppen Dfb)
Last spring frost · safe
May 19
~10% frost risk · typical May 12
First fall frost · safe
Oct 14
~10% frost risk · typical Oct 20
Frost-free days
166
May 12 → Oct 20
Climate zone
Continental, warm summer
Köppen Dfb
45/100 confidence
◇ Modeled
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 — 166 DAYS
MAY 12
OCT 20
Full crop calendar
Source: Curated · based on NASA POWER (modeled) 1991–2020 · Köppen–Geiger classification (Beck et al. 2023) · crop windows from FAO ECOCROP references. How we calculate this →
Also see frost dates for Sapporo.