Frost Dates for OTARU, Japan

Elevation: 15 m

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 14
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 16
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost April 20
First Fall Frost November 12

Hard Freeze (−2°C)

Last Spring Hard Freeze March 31
First Fall Hard Freeze November 26
43.18°N, 141.02°W © OpenStreetMap

Growing Season

216 Days April 14 to November 16

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 8a

Avg. annual minimum: −12 to −9°C

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-10° 0° 10° 20°
-4°
High: -2°C
Avg: -4°C
Low: -6°C
Jan
-4°
High: -2°C
Avg: -4°C
Low: -5°C
Feb
0°
High: 2°C
Avg: 0°C
Low: -2°C
Mar
4°
High: 8°C
Avg: 4°C
Low: 2°C
Apr
11°
High: 15°C
Avg: 11°C
Low: 8°C
May
16°
High: 20°C
Avg: 16°C
Low: 13°C
Jun
20°
High: 24°C
Avg: 20°C
Low: 17°C
Jul
22°
High: 24°C
Avg: 22°C
Low: 19°C
Aug
18°
High: 21°C
Avg: 18°C
Low: 16°C
Sep
12°
High: 14°C
Avg: 12°C
Low: 9°C
Oct
5°
High: 7°C
Avg: 5°C
Low: 3°C
Nov
-1°
High: 0°C
Avg: -1°C
Low: -3°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 50 mm 100 mm 150 mm
81 mm
81.3 mm
Jan
71 mm
71.1 mm
Feb
79 mm
78.7 mm
Mar
71 mm
71.1 mm
Apr
84 mm
83.8 mm
May
74 mm
73.7 mm
Jun
127 mm
127.0 mm
Jul
163 mm
162.6 mm
Aug
137 mm
137.2 mm
Sep
107 mm
106.7 mm
Oct
117 mm
116.8 mm
Nov
107 mm
106.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h14h12.5h11h9.5h9h
Jan: 7:26 AM – 4:34 PM · 9h 09m
Feb: 6:51 AM – 5:09 PM · 10h 18m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:24 AM – 6:36 PM · 13h 12m
May: 4:46 AM – 7:14 PM · 14h 29m
Jun: 4:25 AM – 7:35 PM · 15h 11m
Jul: 4:33 AM – 7:27 PM · 14h 54m
Aug: 5:07 AM – 6:53 PM · 13h 46m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 47m
Nov: 7:16 AM – 4:44 PM · 9h 28m
Dec: 7:36 AM – 4:24 PM · 8h 49m
Daylight Longest: 15h 12m · Shortest: 8h 48m

Nearby Stations

SAPPORO, Japan April 23 - November 12 KUTCHAN, Japan April 29 - November 4 IWAMIZAWA, Japan April 30 - October 31 CHITOSE HOKKAIDO, Japan April 24 - November 7 TOMAKOMAI, Japan April 15 - November 18 SUTTSU, Japan April 10 - November 17

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