Frost Dates for OSAN K 55, South Korea

Elevation: 16 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 29
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 13

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 April 1
First Fall Frost November 9

Hard Freeze (−2°C)

Last Spring Hard Freeze March 15
First Fall Hard Freeze November 24
37.08°N, 127.03°E © OpenStreetMap

Growing Season

229 Days March 29 to November 13

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
January2°-2°-5°
February5°0°-4°
March10°5°1°
April17°11°6°
May22°17°12°
June26°21°17°
July28°24°22°
August29°25°22°
September25°21°17°
October19°14°10°
November11°7°3°
December4°0°-3°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January8
February15
March33
April61
May84
June122
July264
August244
September135
October53
November46
December10

Sunrise / Sunset

Daylight Longest: 14h 33m · Shortest: 9h 27m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:08 AM4:52 PM9h 43m
February6:41 AM5:19 PM10h 38m
March6:09 AM5:51 PM11h 43m
April5:31 AM6:29 PM12h 58m
May5:00 AM6:60 PM13h 59m
June4:44 AM7:16 PM14h 32m
July4:51 AM7:09 PM14h 19m
August5:17 AM6:43 PM13h 25m
September5:53 AM6:07 PM12h 13m
October6:29 AM5:31 PM11h 01m
November7:01 AM4:59 PM9h 58m
December7:16 AM4:44 PM9h 28m

Nearby Stations

CAMP HUMPHREYS, South Korea March 27 - November 15 SUWON ROK K-13, South Korea March 31 - November 9 YEO I DO K-16, South Korea March 31 - November 10 INCHEON, South Korea March 26 - November 15 SEOUL ROK K-14, South Korea March 30 - November 10 UIJONGBU CAMP RED CL, South Korea April 1 - November 8

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