Frost Dates for ROSTA, Sweden

Elevation: 341 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 15
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 19
First Fall Frost October 4

Hard Freeze (−2°C)

Last Spring Hard Freeze April 30
First Fall Hard Freeze October 22
63.24°N, 14.55°W © OpenStreetMap

Growing Season

147 Days May 15 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 6a

Avg. annual minimum: −23 to −21°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

-10° 0° 10° 20°
-6°
High: -4°C
Avg: -6°C
Low: -8°C
Jan
-6°
High: -4°C
Avg: -6°C
Low: -8°C
Feb
-3°
High: 0°C
Avg: -3°C
Low: -6°C
Mar
1°
High: 5°C
Avg: 1°C
Low: -2°C
Apr
7°
High: 11°C
Avg: 7°C
Low: 3°C
May
12°
High: 15°C
Avg: 12°C
Low: 8°C
Jun
14°
High: 18°C
Avg: 14°C
Low: 11°C
Jul
13°
High: 17°C
Avg: 13°C
Low: 10°C
Aug
9°
High: 12°C
Avg: 9°C
Low: 6°C
Sep
3°
High: 5°C
Avg: 3°C
Low: 1°C
Oct
-2°
High: 0°C
Avg: -2°C
Low: -4°C
Nov
-5°
High: -3°C
Avg: -5°C
Low: -7°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
43 mm
43.2 mm
Jan
10 mm
10.2 mm
Feb
18 mm
17.8 mm
Mar
36 mm
35.6 mm
Apr
58 mm
58.4 mm
May
84 mm
83.8 mm
Jun
94 mm
94.0 mm
Jul
81 mm
81.3 mm
Aug
66 mm
66.0 mm
Sep
66 mm
66.0 mm
Oct
53 mm
53.3 mm
Nov
41 mm
40.6 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5.5h8.5h11.5h14.5h17.5h20h19h16h12.5h9.5h6h4h
Jan: 9:22 AM – 2:38 PM · 5h 16m
Feb: 7:52 AM – 4:08 PM · 8h 17m
Mar: 6:22 AM – 5:38 PM · 11h 15m
Apr: 4:43 AM – 7:17 PM · 14h 34m
May: 3:10 AM – 8:50 PM · 17h 40m
Jun: 2:05 AM – 9:55 PM · 19h 50m
Jul: 2:34 AM – 9:26 PM · 18h 51m
Aug: 4:04 AM – 7:56 PM · 15h 53m
Sep: 5:42 AM – 6:18 PM · 12h 35m
Oct: 7:18 AM – 4:42 PM · 9h 23m
Nov: 8:54 AM – 3:06 PM · 6h 12m
Dec: 9:55 AM – 2:05 PM · 4h 09m
Daylight Longest: 19h 55m · Shortest: 4h 05m

Nearby Stations

FROSON, SwedenMay 17 - October 12 NORDERON, Sweden May 9 - October 14 MATTMAR_V, Sweden May 17 - October 4 HOGLEKARDALEN, Sweden May 26 - September 30 MORSIL, SwedenMay 21 - October 3 FOLLINGE_A, Sweden May 18 - October 2

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