Frost Dates for REYKJAVIK, Iceland

Elevation: 51 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 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 (−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

Avg. annual minimum: −18 to −15°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: 1°C
Avg: -1°C
Low: -4°C
Jan
-1°
High: 1°C
Avg: -1°C
Low: -4°C
Feb
0°
High: 2°C
Avg: 0°C
Low: -3°C
Mar
3°
High: 5°C
Avg: 3°C
Low: 0°C
Apr
6°
High: 9°C
Avg: 6°C
Low: 3°C
May
10°
High: 12°C
Avg: 10°C
Low: 7°C
Jun
12°
High: 14°C
Avg: 12°C
Low: 9°C
Jul
11°
High: 13°C
Avg: 11°C
Low: 8°C
Aug
8°
High: 10°C
Avg: 8°C
Low: 6°C
Sep
4°
High: 6°C
Avg: 4°C
Low: 2°C
Oct
1°
High: 3°C
Avg: 1°C
Low: -1°C
Nov
-1°
High: 1°C
Avg: -1°C
Low: -3°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
132 mm
132.1 mm
Jan
130 mm
129.5 mm
Feb
119 mm
119.4 mm
Mar
97 mm
96.5 mm
Apr
84 mm
83.8 mm
May
81 mm
81.3 mm
Jun
84 mm
83.8 mm
Jul
97 mm
96.5 mm
Aug
132 mm
132.1 mm
Sep
114 mm
114.3 mm
Oct
119 mm
119.4 mm
Nov
130 mm
129.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5h8h11h14.5h18h20.5h19.5h16h12.5h9.5h6h3.5h
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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