Frost Dates for HELGOLAND, Germany

Elevation: 1 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 16
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 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 February 28
First Fall Frost December 7

Hard Freeze (−2°C)

Last Spring Hard Freeze February 10
First Fall Hard Freeze December 16
54.18°N, 7.89°E © OpenStreetMap

Growing Season

301 Days February 16 to December 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 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.
Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January5°4°3°
February4°3°3°
March6°5°4°
April8°7°6°
May12°11°10°
June15°14°13°
July18°17°16°
August19°18°17°
September17°16°15°
October13°12°11°
November9°8°7°
December7°5°4°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January79
February64
March58
April43
May48
June64
July66
August86
September97
October104
November94
December84

Sunrise / Sunset

Daylight Longest: 16h 55m · Shortest: 7h 05m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:11 AM3:49 PM7h 39m
February7:16 AM4:44 PM9h 27m
March6:16 AM5:44 PM11h 29m
April5:07 AM6:53 PM13h 46m
May4:08 AM7:52 PM15h 45m
June3:33 AM8:27 PM16h 53m
July3:48 AM8:12 PM16h 25m
August4:41 AM7:19 PM14h 39m
September5:48 AM6:12 PM12h 25m
October6:54 AM5:06 PM10h 12m
November7:55 AM4:05 PM8h 10m
December8:27 AM3:33 PM7h 06m

Nearby Stations

UFS DEUTSCHE BUCHT, Germany February 11 - December 12 LEUCHTTURM ALTE WESER, Germany February 26 - December 11 CUXHAVEN, Germany March 18 - November 25 NORDERNEY, Germany March 20 - November 24 LIST/SYLT, Germany March 4 - December 11 UFS TW EMS, Germany February 12 - December 18

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