Frost Dates for HOPEN, Norway

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. June 24
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. August 14
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 June 29
First Fall Frost July 24

Hard Freeze (−2°C)

Last Spring Hard Freeze May 29
First Fall Hard Freeze October 11
76.50°N, 25.07°W © OpenStreetMap

Growing Season

51 Days June 24 to August 14

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 5b

Avg. annual minimum: −26 to −23°C

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

ET Tundra

No true summer — the warmest month averages below 10°C (50°F). Growing is limited to hardy greens, root crops, and cold-frames during the brief warm period. Permafrost restricts root depth.

Köppen climate map

Temperature

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

Precipitation

0 mm 20 mm 40 mm 60 mm
33 mm
33.0 mm
Jan
15 mm
15.2 mm
Feb
20 mm
20.3 mm
Mar
15 mm
15.2 mm
Apr
8 mm
7.6 mm
May
8 mm
7.6 mm
Jun
20 mm
20.3 mm
Jul
18 mm
17.8 mm
Aug
38 mm
38.1 mm
Sep
48 mm
48.3 mm
Oct
56 mm
55.9 mm
Nov
41 mm
40.6 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec0h1.5h10.5h18h24h24h24h24h13h6h0h0h
Jan: 0h (Polar Night)
Feb: 11:19 AM – 12:41 PM · 1h 23m
Mar: 6:47 AM – 5:13 PM · 10h 25m
Apr: 3:05 AM – 8:55 PM · 17h 49m
May: 24h (Midnight Sun)
Jun: 24h (Midnight Sun)
Jul: 24h (Midnight Sun)
Aug: 24h (Midnight Sun)
Sep: 5:23 AM – 6:37 PM · 13h 14m
Oct: 8:59 AM – 3:01 PM · 6h 02m
Nov: 0h (Polar Night)
Dec: 0h (Polar Night)
Daylight Longest: 24h 00m · Shortest: 0h 00m

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