Frost Dates for Penrhyndeudraeth, United Kingdom
Based on data from Alwen weather station, 23 miles away
Elevation: 29 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.
May 13
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.
October 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
May 21
First Fall Frost
October 1
Hard Freeze (−2°C)
Last Spring Hard Freeze
April 28
First Fall Hard Freeze
November 10
Growing Season
154 Days
May 13 to October 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 8b
Avg. annual minimum: −9 to −7°C
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.
Temperature
0°
5°
10°
15°
20°
Avg High
Avg Temp
Avg Low
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 6° | 3° | 0° |
| February | 7° | 3° | 0° |
| March | 8° | 5° | 1° |
| April | 11° | 7° | 2° |
| May | 14° | 10° | 5° |
| June | 17° | 12° | 8° |
| July | 19° | 14° | 10° |
| August | 18° | 14° | 10° |
| September | 16° | 12° | 8° |
| October | 12° | 9° | 5° |
| November | 9° | 6° | 3° |
| December | 7° | 4° | 1° |
Precipitation
0 mm
50 mm
100 mm
150 mm
200 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 130 |
| February | 117 |
| March | 102 |
| April | 94 |
| May | 86 |
| June | 86 |
| July | 81 |
| August | 94 |
| September | 107 |
| October | 150 |
| November | 157 |
| December | 191 |
Sunrise / Sunset
Daylight
Greenwich Mean Time (GMT)
Longest: 16h 42m · Shortest: 7h 18m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:28 AM | 4:19 PM | 7h 51m |
| February | 7:42 AM | 5:16 PM | 9h 34m |
| March | 6:39 AM | 6:09 PM | 11h 30m |
| April | 6:23 AM | 8:05 PM | 13h 42m |
| May | 5:23 AM | 8:58 PM | 15h 35m |
| June | 4:55 AM | 9:34 PM | 16h 40m |
| July | 5:13 AM | 9:26 PM | 16h 13m |
| August | 6:02 AM | 8:35 PM | 14h 32m |
| September | 6:57 AM | 7:21 PM | 12h 24m |
| October | 7:51 AM | 6:07 PM | 10h 16m |
| November | 7:49 AM | 4:09 PM | 8h 20m |
| December | 8:30 AM | 3:50 PM | 7h 20m |
Nearby Stations
Plan Your Garden with Planter
Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.
Try Planter For FreeAvailable everywhere: iOS, Android, web, and more!
