Frost Dates for Blaenau-Ffestiniog, United Kingdom

Based on data from Alwen weather station, 17 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. May 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. October 14
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 May 21
First Fall Frost October 1

Hard Freeze (−2°C)

Last Spring Hard Freeze April 28
First Fall Hard Freeze November 10
52.99°N, -3.94°W © OpenStreetMap

Growing Season

154 Days May 13 to October 14

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 8b

Avg. annual minimum: 15 to 20°F (−9 to −7°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°
3°
High: 6°C
Avg: 3°C
Low: 0°C
Jan
3°
High: 7°C
Avg: 3°C
Low: 0°C
Feb
5°
High: 8°C
Avg: 5°C
Low: 1°C
Mar
7°
High: 11°C
Avg: 7°C
Low: 2°C
Apr
10°
High: 14°C
Avg: 10°C
Low: 5°C
May
12°
High: 17°C
Avg: 12°C
Low: 8°C
Jun
14°
High: 19°C
Avg: 14°C
Low: 10°C
Jul
14°
High: 18°C
Avg: 14°C
Low: 10°C
Aug
12°
High: 16°C
Avg: 12°C
Low: 8°C
Sep
9°
High: 12°C
Avg: 9°C
Low: 5°C
Oct
6°
High: 9°C
Avg: 6°C
Low: 3°C
Nov
4°
High: 7°C
Avg: 4°C
Low: 1°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm 150 mm 200 mm
130 mm
129.5 mm
Jan
117 mm
116.8 mm
Feb
102 mm
101.6 mm
Mar
94 mm
94.0 mm
Apr
86 mm
86.4 mm
May
86 mm
86.4 mm
Jun
81 mm
81.3 mm
Jul
94 mm
94.0 mm
Aug
107 mm
106.7 mm
Sep
150 mm
149.9 mm
Oct
157 mm
157.5 mm
Nov
191 mm
190.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h9.5h11.5h13.5h15.5h16.5h16h14.5h12.5h10.5h8.5h7.5h
Jan: 8:05 AM – 3:55 PM · 7h 51m
Feb: 7:13 AM – 4:47 PM · 9h 34m
Mar: 6:15 AM – 5:45 PM · 11h 30m
Apr: 5:09 AM – 6:51 PM · 13h 42m
May: 4:12 AM – 7:48 PM · 15h 35m
Jun: 3:40 AM – 8:20 PM · 16h 40m
Jul: 3:53 AM – 8:07 PM · 16h 13m
Aug: 4:44 AM – 7:16 PM · 14h 32m
Sep: 5:48 AM – 6:12 PM · 12h 24m
Oct: 6:52 AM – 5:08 PM · 10h 16m
Nov: 7:50 AM – 4:10 PM · 8h 20m
Dec: 8:20 AM – 3:40 PM · 7h 20m
Daylight Longest: 16h 42m · Shortest: 7h 18m

Nearby Stations

Shawbury, United Kingdom April 26 - October 29 Valley, United Kingdom March 17 - November 29 Gogerddan, United Kingdom April 24 - November 7 Keele, United Kingdom April 15 - November 7 Preston: Moor Park, United Kingdom April 23 - November 2 Lyonshall, United Kingdom April 14 - November 6

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