Frost Dates for Jersey: Airport, United Kingdom

Elevation: 84 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 22
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 14

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 8

Hard Freeze (−2°C)

Last Spring Hard Freeze February 7
First Fall Hard Freeze December 13
49.22°N, 2.20°W © OpenStreetMap

Growing Season

296 Days February 22 to December 14

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
January9°7°5°
February9°7°4°
March11°8°5°
April13°10°7°
May16°13°10°
June19°15°12°
July21°17°14°
August21°18°15°
September19°16°13°
October16°13°11°
November12°10°8°
December10°8°5°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January89
February74
March71
April61
May56
June48
July46
August64
September69
October97
November104
December124

Sunrise / Sunset

Daylight Longest: 16h 01m · Shortest: 7h 59m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:47 AM4:13 PM8h 25m
February7:04 AM4:56 PM9h 53m
March6:13 AM5:47 PM11h 34m
April5:16 AM6:44 PM13h 29m
May4:27 AM7:33 PM15h 06m
June4:00 AM7:60 PM15h 60m
July4:11 AM7:49 PM15h 38m
August4:54 AM7:06 PM14h 12m
September5:50 AM6:10 PM12h 21m
October6:45 AM5:15 PM10h 30m
November7:35 AM4:25 PM8h 50m
December8:00 AM3:60 PM7h 60m

Nearby Stations

Guernsey: Airport, United Kingdom February 13 - November 30 Swanage, United Kingdom March 14 - December 3 Slapton, United Kingdom March 20 - December 1 Hurn, United Kingdom April 26 - October 22

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