Frost Dates for MOMBETSU, Japan

Elevation: 21 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 30
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 9

30% Probability

Only 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 5
First Fall Frost November 5

Hard Freeze (−2°C)

Last Spring Hard Freeze April 18
First Fall Hard Freeze November 20
44.35°N, 143.35°E © OpenStreetMap

Growing Season

193 Days April 30 to November 9

USDA Hardiness Zone

Hardiness 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 7a

Avg. annual minimum: −18 to −15°C

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January-4°-6°-8°
February-4°-7°-9°
March0°-2°-5°
April7°3°0°
May13°9°6°
June17°13°11°
July20°18°15°
August22°19°17°
September19°16°14°
October13°10°8°
November6°3°1°
December-1°-3°-5°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January76
February48
March69
April76
May81
June76
July104
August130
September122
October91
November81
December74

Sunrise / Sunset

Daylight Longest: 15h 21m · Shortest: 8h 39m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:29 AM4:31 PM9h 01m
February6:53 AM5:07 PM10h 13m
March6:11 AM5:49 PM11h 38m
April5:23 AM6:37 PM13h 15m
May4:42 AM7:18 PM14h 35m
June4:20 AM7:40 PM15h 19m
July4:29 AM7:31 PM15h 01m
August5:04 AM6:56 PM13h 51m
September5:51 AM6:09 PM12h 17m
October6:38 AM5:22 PM10h 44m
November7:19 AM4:41 PM9h 21m
December7:40 AM4:20 PM8h 40m

Nearby Stations

OMU, JapanApril 30 - November 11 ABASHIRI, Japan April 28 - November 11 KITAMIESASHI, Japan April 29 - November 9 ASAHIKAWA, Japan May 4 - October 25 MYS KRILON, Russia April 19 - November 10

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