Frost Dates for SUWON ROK K-13, South Korea

Elevation: 25 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 31
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 April 4
First Fall Frost November 5

Hard Freeze (−2°C)

Last Spring Hard Freeze March 19
First Fall Hard Freeze November 19
37.25°N, 127.00°E © OpenStreetMap

Growing Season

223 Days March 31 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 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°-6°
February5°0°-4°
March10°5°0°
April16°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°-4°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January10
February15
March30
April61
May89
June122
July292
August241
September135
October51
November51
December15

Sunrise / Sunset

Daylight Longest: 14h 34m · Shortest: 9h 26m
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 42m
February6:41 AM5:19 PM10h 37m
March6:09 AM5:51 PM11h 43m
April5:31 AM6:29 PM12h 58m
May5:00 AM6:60 PM13h 60m
June4:43 AM7:17 PM14h 33m
July4:50 AM7:10 PM14h 20m
August5:17 AM6:43 PM13h 26m
September5:53 AM6:07 PM12h 13m
October6:30 AM5:30 PM11h 01m
November7:01 AM4:59 PM9h 58m
December7:17 AM4:43 PM9h 27m

Nearby Stations

OSAN K 55, South Korea March 29 - November 13 YEO I DO K-16, South Korea March 31 - November 10 CAMP HUMPHREYS, South Korea March 27 - November 15 SEOUL ROK K-14, South Korea March 30 - November 10 INCHEON, South Korea March 26 - November 15 UIJONGBU CAMP RED CL, South Korea April 1 - November 8

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