Frost Dates for Isle of Lewis, United Kingdom

Based on data from Stornoway Airport weather station, 8 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 13
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 19
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 25
First Fall Frost November 10

Hard Freeze (−2°C)

Last Spring Hard Freeze March 4
First Fall Hard Freeze December 14
58.22°N, -6.39°W © OpenStreetMap

Growing Season

220 Days April 13 to November 19

USDA Hardiness Zone iHardiness 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: 25 to 30°F (−4 to −1°C)

Learn more

Köppen Climate iThe 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

0° 5° 10° 15° 20°
5°
High: 8°C
Avg: 5°C
Low: 3°C
Jan
5°
High: 8°C
Avg: 5°C
Low: 2°C
Feb
6°
High: 9°C
Avg: 6°C
Low: 3°C
Mar
8°
High: 10°C
Avg: 8°C
Low: 5°C
Apr
10°
High: 13°C
Avg: 10°C
Low: 6°C
May
12°
High: 15°C
Avg: 12°C
Low: 9°C
Jun
14°
High: 16°C
Avg: 14°C
Low: 11°C
Jul
14°
High: 16°C
Avg: 14°C
Low: 11°C
Aug
12°
High: 15°C
Avg: 12°C
Low: 9°C
Sep
10°
High: 12°C
Avg: 10°C
Low: 7°C
Oct
7°
High: 9°C
Avg: 7°C
Low: 5°C
Nov
5°
High: 8°C
Avg: 5°C
Low: 3°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm 150 mm
150 mm
149.9 mm
Jan
117 mm
116.8 mm
Feb
109 mm
109.2 mm
Mar
76 mm
76.2 mm
Apr
79 mm
78.7 mm
May
69 mm
68.6 mm
Jun
76 mm
76.2 mm
Jul
89 mm
88.9 mm
Aug
102 mm
101.6 mm
Sep
127 mm
127.0 mm
Oct
135 mm
134.6 mm
Nov
135 mm
134.6 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7h9h11.5h14h16.5h18h17.5h15h12.5h10h7.5h6h
Jan: 8:37 AM – 3:23 PM · 6h 47m
Feb: 7:30 AM – 4:30 PM · 8h 60m
Mar: 6:18 AM – 5:42 PM · 11h 23m
Apr: 4:58 AM – 7:02 PM · 14h 05m
May: 3:46 AM – 8:14 PM · 16h 28m
Jun: 3:03 AM – 8:57 PM · 17h 55m
Jul: 3:21 AM – 8:39 PM · 17h 18m
Aug: 4:26 AM – 7:34 PM · 15h 07m
Sep: 5:46 AM – 6:14 PM · 12h 29m
Oct: 7:04 AM – 4:56 PM · 9h 53m
Nov: 8:17 AM – 3:43 PM · 7h 26m
Dec: 8:57 AM – 3:03 PM · 6h 05m
Daylight Longest: 17h 57m · Shortest: 6h 03m

Nearby Stations

Kinlochewe, United Kingdom May 3 - October 22

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