Frost Dates for WAKKANAI, Japan

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 27
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 10
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 May 2
First Fall Frost November 7

Hard Freeze (−2°C)

Last Spring Hard Freeze April 12
First Fall Hard Freeze November 19
45.42°N, 141.68°W © OpenStreetMap

Growing Season

197 Days April 27 to November 10

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 7b

Avg. annual minimum: −15 to −12°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°
-5°
High: -4°C
Avg: -5°C
Low: -7°C
Jan
-5°
High: -3°C
Avg: -5°C
Low: -8°C
Feb
-2°
High: 0°C
Avg: -2°C
Low: -4°C
Mar
4°
High: 7°C
Avg: 4°C
Low: 1°C
Apr
9°
High: 12°C
Avg: 9°C
Low: 6°C
May
13°
High: 17°C
Avg: 13°C
Low: 11°C
Jun
18°
High: 21°C
Avg: 18°C
Low: 15°C
Jul
19°
High: 22°C
Avg: 19°C
Low: 17°C
Aug
17°
High: 19°C
Avg: 17°C
Low: 14°C
Sep
11°
High: 13°C
Avg: 11°C
Low: 8°C
Oct
3°
High: 5°C
Avg: 3°C
Low: 1°C
Nov
-3°
High: -1°C
Avg: -3°C
Low: -5°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
56 mm
55.9 mm
Jan
43 mm
43.2 mm
Feb
66 mm
66.0 mm
Mar
69 mm
68.6 mm
Apr
79 mm
78.7 mm
May
61 mm
61.0 mm
Jun
104 mm
104.1 mm
Jul
122 mm
121.9 mm
Aug
122 mm
121.9 mm
Sep
99 mm
99.1 mm
Oct
89 mm
88.9 mm
Nov
79 mm
78.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:33 AM – 4:27 PM · 8h 54m
Feb: 6:55 AM – 5:05 PM · 10h 09m
Mar: 6:11 AM – 5:49 PM · 11h 37m
Apr: 5:21 AM – 6:39 PM · 13h 17m
May: 4:39 AM – 7:21 PM · 14h 42m
Jun: 4:16 AM – 7:44 PM · 15h 27m
Jul: 4:26 AM – 7:34 PM · 15h 09m
Aug: 5:02 AM – 6:58 PM · 13h 55m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:40 AM – 5:20 PM · 10h 41m
Nov: 7:23 AM – 4:37 PM · 9h 15m
Dec: 7:44 AM – 4:16 PM · 8h 32m
Daylight Longest: 15h 29m · Shortest: 8h 31m

Nearby Stations

MYS KRILON, Russia April 19 - November 10 KITAMIESASHI, Japan April 29 - November 9 HABORO, Japan April 22 - November 14 OMU, JapanApril 30 - November 11 NEVELSK, RussiaMay 3 - November 5 KORSAKOV, Russia May 5 - November 3

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