Frost Dates for HORNAFJORDUR, Iceland

Elevation: 2 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 11
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 9
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 17
First Fall Frost October 3

Hard Freeze (−2°C)

Last Spring Hard Freeze April 22
First Fall Hard Freeze October 24
64.30°N, -15.23°W © OpenStreetMap

Growing Season

151 Days May 11 to October 9

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 8a

Avg. annual minimum: −12 to −9°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°
0°
High: 2°C
Avg: 0°C
Low: -2°C
Jan
0°
High: 2°C
Avg: 0°C
Low: -2°C
Feb
0°
High: 2°C
Avg: 0°C
Low: -2°C
Mar
2°
High: 4°C
Avg: 2°C
Low: 0°C
Apr
5°
High: 7°C
Avg: 5°C
Low: 3°C
May
8°
High: 10°C
Avg: 8°C
Low: 6°C
Jun
10°
High: 12°C
Avg: 10°C
Low: 8°C
Jul
10°
High: 12°C
Avg: 10°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
2°
High: 3°C
Avg: 2°C
Low: 0°C
Nov
0°
High: 2°C
Avg: 0°C
Low: -2°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 75 mm 150 mm 225 mm
211 mm
210.8 mm
Jan
178 mm
177.8 mm
Feb
157 mm
157.5 mm
Mar
132 mm
132.1 mm
Apr
94 mm
94.0 mm
May
102 mm
101.6 mm
Jun
104 mm
104.1 mm
Jul
137 mm
137.2 mm
Aug
211 mm
210.8 mm
Sep
226 mm
226.1 mm
Oct
198 mm
198.1 mm
Nov
203 mm
203.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5h8h11h14.5h18h20.5h19.5h16h12.5h9.5h6h3.5h
Jan: 9:36 AM – 2:24 PM · 4h 48m
Feb: 7:58 AM – 4:02 PM · 8h 05m
Mar: 6:23 AM – 5:37 PM · 11h 13m
Apr: 4:39 AM – 7:21 PM · 14h 41m
May: 3:00 AM – 8:60 PM · 17h 60m
Jun: 1:46 AM – 10:14 PM · 20h 28m
Jul: 2:20 AM – 9:40 PM · 19h 20m
Aug: 3:57 AM – 8:03 PM · 16h 05m
Sep: 5:42 AM – 6:18 PM · 12h 37m
Oct: 7:22 AM – 4:38 PM · 9h 15m
Nov: 9:05 AM – 2:55 PM · 5h 51m
Dec: 10:15 AM – 1:45 PM · 3h 31m
Daylight Longest: 20h 34m · Shortest: 3h 26m

Nearby Stations

TEIGARHORN, Iceland May 17 - October 6

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