Frost Dates for KEFLAVIK, Iceland
Elevation: 42 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 1
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 21
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 7
First Fall Frost
October 15
Hard Freeze (−2°C)
Last Spring Hard Freeze
April 11
First Fall Hard Freeze
November 13
Growing Season
173 Days
May 1 to October 21
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.
Cfc
Subpolar Oceanic
Cool year-round with very mild winters but short, cool summers. Growing seasons are short and limited to cold-hardy crops. Root vegetables and leafy greens are the most reliable choices.
Temperature
-5°
0°
5°
10°
15°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 3° | 1° | 0° |
| February | 3° | 1° | -1° |
| March | 3° | 1° | 0° |
| April | 5° | 3° | 2° |
| May | 8° | 6° | 4° |
| June | 11° | 9° | 7° |
| July | 12° | 11° | 9° |
| August | 12° | 11° | 9° |
| September | 10° | 8° | 7° |
| October | 6° | 5° | 4° |
| November | 4° | 3° | 1° |
| December | 3° | 1° | 0° |
Precipitation
0 mm
50 mm
100 mm
150 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 124 |
| February | 122 |
| March | 109 |
| April | 86 |
| May | 79 |
| June | 69 |
| July | 76 |
| August | 89 |
| September | 140 |
| October | 112 |
| November | 124 |
| December | 124 |
Sunrise / Sunset
Daylight
Longest: 20h 21m · Shortest: 3h 39m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 9:31 AM | 2:29 PM | 4h 57m |
| February | 7:56 AM | 4:04 PM | 8h 09m |
| March | 6:23 AM | 5:37 PM | 11h 14m |
| April | 4:41 AM | 7:19 PM | 14h 39m |
| May | 3:03 AM | 8:57 PM | 17h 53m |
| June | 1:52 AM | 10:08 PM | 20h 15m |
| July | 2:25 AM | 9:35 PM | 19h 11m |
| August | 3:59 AM | 8:01 PM | 16h 01m |
| September | 5:42 AM | 6:18 PM | 12h 36m |
| October | 7:21 AM | 4:39 PM | 9h 18m |
| November | 9:01 AM | 2:59 PM | 5h 58m |
| December | 10:08 AM | 1:52 PM | 3h 44m |
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!
