Frost Dates for GRUNDFORSEN, Sweden

Elevation: 408 m

Frost Dates

Last Spring Frost (50%) A 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%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 1

30% Probability

Only 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 26

Hard Freeze (−2°C)

Last Spring Hard Freeze May 3
First Fall Hard Freeze October 18
61.28°N, 12.86°E © OpenStreetMap

Growing Season

139 Days May 15 to October 1

USDA Hardiness Zone

Hardiness 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

The 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

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January-4°-7°-10°
February-3°-6°-10°
March1°-3°-7°
April6°2°-2°
May12°8°3°
June17°13°8°
July19°15°11°
August17°14°10°
September13°9°6°
October6°3°1°
November0°-2°-4°
December-3°-6°-9°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January61
February36
March41
April51
May81
June102
July109
August109
September79
October71
November71
December64

Sunrise / Sunset

Daylight Longest: 18h 59m · Shortest: 5h 01m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January9:01 AM2:59 PM5h 58m
February7:42 AM4:18 PM8h 36m
March6:21 AM5:39 PM11h 19m
April4:50 AM7:10 PM14h 21m
May3:26 AM8:34 PM17h 07m
June2:33 AM9:27 PM18h 55m
July2:56 AM9:04 PM18h 08m
August4:14 AM7:46 PM15h 33m
September5:44 AM6:16 PM12h 32m
October7:12 AM4:48 PM9h 36m
November8:37 AM3:23 PM6h 45m
December9:28 AM2:32 PM5h 05m

Nearby Stations

SALEN-HOGFJALLET_V, Sweden May 25 - September 22 HOLJES, SwedenMay 8 - October 8 IDRE_FJALL_A, Sweden June 5 - September 15 BRATTMON_V, Sweden May 14 - October 2 IDRE-STORBO_V, Sweden May 30 - September 25 RENA - HAUGEDALEN, Norway May 11 - October 8

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