Frost Dates for KEFLAVIK, Iceland

Elevation: 42 m

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 1
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 21
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 7
First Fall Frost October 15

Hard Freeze (−2°C)

Last Spring Hard Freeze April 11
First Fall Hard Freeze November 13
63.97°N, -22.60°W © OpenStreetMap

Growing Season

173 Days May 1 to October 21

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: −9 to −7°C

Learn more

Köppen Climate iThe 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.

Köppen climate map

Temperature

-5° 0° 5° 10° 15°
1°
High: 3°C
Avg: 1°C
Low: 0°C
Jan
1°
High: 3°C
Avg: 1°C
Low: -1°C
Feb
1°
High: 3°C
Avg: 1°C
Low: 0°C
Mar
3°
High: 5°C
Avg: 3°C
Low: 2°C
Apr
6°
High: 8°C
Avg: 6°C
Low: 4°C
May
9°
High: 11°C
Avg: 9°C
Low: 7°C
Jun
11°
High: 12°C
Avg: 11°C
Low: 9°C
Jul
11°
High: 12°C
Avg: 11°C
Low: 9°C
Aug
8°
High: 10°C
Avg: 8°C
Low: 7°C
Sep
5°
High: 6°C
Avg: 5°C
Low: 4°C
Oct
3°
High: 4°C
Avg: 3°C
Low: 1°C
Nov
1°
High: 3°C
Avg: 1°C
Low: 0°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 50 mm 100 mm 150 mm
124 mm
124.5 mm
Jan
122 mm
121.9 mm
Feb
109 mm
109.2 mm
Mar
86 mm
86.4 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
140 mm
139.7 mm
Sep
112 mm
111.8 mm
Oct
124 mm
124.5 mm
Nov
124 mm
124.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5h8h11h14.5h18h20.5h19h16h12.5h9.5h6h3.5h
Jan: 9:31 AM – 2:29 PM · 4h 57m
Feb: 7:56 AM – 4:04 PM · 8h 09m
Mar: 6:23 AM – 5:37 PM · 11h 14m
Apr: 4:41 AM – 7:19 PM · 14h 39m
May: 3:03 AM – 8:57 PM · 17h 53m
Jun: 1:52 AM – 10:08 PM · 20h 15m
Jul: 2:25 AM – 9:35 PM · 19h 11m
Aug: 3:59 AM – 8:01 PM · 16h 01m
Sep: 5:42 AM – 6:18 PM · 12h 36m
Oct: 7:21 AM – 4:39 PM · 9h 18m
Nov: 9:01 AM – 2:59 PM · 5h 58m
Dec: 10:08 AM – 1:52 PM · 3h 44m
Daylight Longest: 20h 21m · Shortest: 3h 39m

Nearby Stations

REYKJAVIK, Iceland May 13 - October 6

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