Frost Dates for INCHEON, South Korea

Elevation: 12 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. March 26
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 15

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 29
First Fall Frost November 11

Hard Freeze (−2°C)

Last Spring Hard Freeze March 15
First Fall Hard Freeze November 23
37.47°N, 126.63°E © OpenStreetMap

Growing Season

234 Days March 26 to November 15

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 7b

Avg. annual minimum: −15 to −12°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dwa Hot-Summer Continental (Dry Winter)

Hot, wet summers and cold, dry winters. Monsoon influence brings most rain in summer. Good for warm-season crops during the rainy season; winters are harsh but dry.

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
January1°-2°-6°
February4°0°-4°
March9°4°1°
April15°10°7°
May20°16°12°
June24°21°18°
July27°24°22°
August28°25°23°
September24°21°18°
October18°14°11°
November11°7°3°
December4°0°-4°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January5
February15
March25
April61
May91
June132
July297
August251
September117
October46
November43
December10

Sunrise / Sunset

Daylight Longest: 14h 35m · Shortest: 9h 25m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:09 AM4:51 PM9h 41m
February6:42 AM5:18 PM10h 37m
March6:09 AM5:51 PM11h 43m
April5:31 AM6:29 PM12h 58m
May4:60 AM7:00 PM14h 01m
June4:43 AM7:17 PM14h 34m
July4:50 AM7:10 PM14h 21m
August5:17 AM6:43 PM13h 27m
September5:53 AM6:07 PM12h 14m
October6:30 AM5:30 PM11h 00m
November7:02 AM4:58 PM9h 57m
December7:17 AM4:43 PM9h 26m

Nearby Stations

SEOUL ROK K-14, South Korea March 30 - November 10 YEO I DO K-16, South Korea March 31 - November 10 SUWON ROK K-13, South Korea March 31 - November 9 UIJONGBU CAMP RED CL, South Korea April 1 - November 8 OSAN K 55, South Korea March 29 - November 13 CAMP HUMPHREYS, South Korea March 27 - November 15

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