Frost Dates for CHIBA, Japan

Elevation: 8 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. February 28
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. December 22

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 March 5
First Fall Frost December 18
35.60°N, 140.10°E © OpenStreetMap

Growing Season

298 Days February 28 to December 22

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 9b

Avg. annual minimum: −4 to −1°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January9°5°2°
February9°6°2°
March12°9°6°
April17°14°10°
May22°18°15°
June24°21°19°
July28°25°23°
August30°26°24°
September26°23°21°
October21°18°16°
November16°13°10°
December11°8°5°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January86
February86
March142
April135
May150
June185
July150
August119
September203
October236
November124
December86

Sunrise / Sunset

Daylight Longest: 14h 25m · Shortest: 9h 35m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:05 AM4:55 PM9h 51m
February6:39 AM5:21 PM10h 42m
March6:08 AM5:52 PM11h 44m
April5:33 AM6:27 PM12h 55m
May5:04 AM6:56 PM13h 53m
June4:48 AM7:12 PM14h 24m
July4:54 AM7:06 PM14h 11m
August5:20 AM6:40 PM13h 21m
September5:54 AM6:06 PM12h 13m
October6:28 AM5:32 PM11h 04m
November6:58 AM5:02 PM10h 05m
December7:12 AM4:48 PM9h 36m

Nearby Stations

KISARAZU, Japan TOKYO, JapanMarch 3 - December 19 YOKOHAMA, Japan February 22 - December 23 OPPAMA, Japan YOKOSUKA, Japan KATSUURA, Japan

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