Frost Dates for REYKJAVIK, Iceland

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 6
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 18
First Fall Frost September 29

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 29
First Fall Hard Freeze October 23
64.13°N, -21.90°W © OpenStreetMap

Growing Season

146 Days May 13 to October 6

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 7a

Learn more

Temperature

20° 30° 40° 50° 60°
30°
High: 34°
Avg: 30°
Low: 26°
Jan
30°
High: 34°
Avg: 30°
Low: 26°
Feb
32°
High: 36°
Avg: 32°
Low: 27°
Mar
37°
High: 42°
Avg: 37°
Low: 32°
Apr
43°
High: 49°
Avg: 43°
Low: 38°
May
50°
High: 54°
Avg: 50°
Low: 44°
Jun
53°
High: 58°
Avg: 53°
Low: 48°
Jul
51°
High: 56°
Avg: 51°
Low: 47°
Aug
46°
High: 50°
Avg: 46°
Low: 42°
Sep
39°
High: 43°
Avg: 39°
Low: 35°
Oct
34°
High: 37°
Avg: 34°
Low: 30°
Nov
30°
High: 34°
Avg: 30°
Low: 26°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.2"
5.2"
5.20"
Jan
5.1"
5.10"
Feb
4.7"
4.70"
Mar
3.8"
3.80"
Apr
3.3"
3.30"
May
3.2"
3.20"
Jun
3.3"
3.30"
Jul
3.8"
3.80"
Aug
5.2"
5.20"
Sep
4.5"
4.50"
Oct
4.7"
4.70"
Nov
5.1"
5.10"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5h8h11h15h18h20h19h16h13h9h6h4h
Jan: 9:34 AM – 2:26 PM · 4h 53m
Feb: 7:57 AM – 4:03 PM · 8h 07m
Mar: 6:23 AM – 5:37 PM · 11h 13m
Apr: 4:40 AM – 7:20 PM · 14h 40m
May: 3:02 AM – 8:58 PM · 17h 56m
Jun: 1:49 AM – 10:11 PM · 20h 22m
Jul: 2:22 AM – 9:38 PM · 19h 15m
Aug: 3:58 AM – 8:02 PM · 16h 03m
Sep: 5:42 AM – 6:18 PM · 12h 37m
Oct: 7:22 AM – 4:38 PM · 9h 17m
Nov: 9:03 AM – 2:57 PM · 5h 54m
Dec: 10:11 AM – 1:49 PM · 3h 38m
Daylight Longest: 20h 27m · Shortest: 3h 33m

Nearby Stations

KEFLAVIK, Iceland May 1 - October 21 STYKKISHOLMUR, Iceland May 12 - October 8 VESTMANNAEYJAR, Iceland April 21 - October 29

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