Frost Dates for ROROS, Norway

Elevation: 628 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 30
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. September 27
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 5
First Fall Frost September 21

Hard Freeze (−2°C)

Last Spring Hard Freeze May 16
First Fall Hard Freeze October 10
62.57°N, 11.38°W © OpenStreetMap

Growing Season

120 Days May 30 to September 27

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.

Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

Köppen climate map

Temperature

-15° -5° 5° 15°
-8°
High: -5°C
Avg: -8°C
Low: -10°C
Jan
-7°
High: -5°C
Avg: -7°C
Low: -10°C
Feb
-4°
High: -1°C
Avg: -4°C
Low: -8°C
Mar
0°
High: 3°C
Avg: 0°C
Low: -4°C
Apr
5°
High: 8°C
Avg: 5°C
Low: 0°C
May
9°
High: 13°C
Avg: 9°C
Low: 5°C
Jun
12°
High: 16°C
Avg: 12°C
Low: 8°C
Jul
11°
High: 15°C
Avg: 11°C
Low: 8°C
Aug
7°
High: 10°C
Avg: 7°C
Low: 4°C
Sep
2°
High: 4°C
Avg: 2°C
Low: -1°C
Oct
-4°
High: -2°C
Avg: -4°C
Low: -6°C
Nov
-7°
High: -5°C
Avg: -7°C
Low: -10°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
48 mm
48.3 mm
Jan
25 mm
25.4 mm
Feb
33 mm
33.0 mm
Mar
51 mm
50.8 mm
Apr
79 mm
78.7 mm
May
91 mm
91.4 mm
Jun
97 mm
96.5 mm
Jul
81 mm
81.3 mm
Aug
69 mm
68.6 mm
Sep
61 mm
61.0 mm
Oct
46 mm
45.7 mm
Nov
38 mm
38.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5.5h8.5h11.5h14.5h17.5h19.5h18.5h16h12.5h9.5h6.5h4.5h
Jan: 9:14 AM – 2:46 PM · 5h 31m
Feb: 7:48 AM – 4:12 PM · 8h 23m
Mar: 6:22 AM – 5:38 PM · 11h 16m
Apr: 4:45 AM – 7:15 PM · 14h 29m
May: 3:16 AM – 8:44 PM · 17h 28m
Jun: 2:16 AM – 9:44 PM · 19h 29m
Jul: 2:42 AM – 9:18 PM · 18h 35m
Aug: 4:07 AM – 7:53 PM · 15h 46m
Sep: 5:43 AM – 6:17 PM · 12h 34m
Oct: 7:16 AM – 4:44 PM · 9h 28m
Nov: 8:48 AM – 3:12 PM · 6h 24m
Dec: 9:45 AM – 2:15 PM · 4h 30m
Daylight Longest: 19h 33m · Shortest: 4h 27m

Nearby Stations

ROROS AIRPORT, Norway May 30 - September 27 LJUSNEDAL, Sweden May 26 - September 25 TANNAS A, Sweden June 2 - September 24 SYLARNA, Sweden June 19 - August 24 FLATRUET_V, Sweden June 14 - September 6 SELBU-STUBBE, Norway May 18 - October 12

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