Frost Dates for HALSUA KANALA PUROLA, Finland

Elevation: 159 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 12
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 5

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 29

Hard Freeze (−2°C)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 14
63.45°N, 24.45°E © OpenStreetMap

Growing Season

146 Days May 12 to October 5

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-5°-7°-10°
February-5°-7°-10°
March0°-4°-7°
April6°2°-2°
May13°9°4°
June17°14°9°
July20°17°13°
August18°15°11°
September12°9°6°
October5°3°1°
November0°-1°-3°
December-3°-5°-7°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January23
February15
March18
April33
May64
June79
July81
August81
September69
October66
November61
December51

Sunrise / Sunset

Daylight Longest: 20h 02m · Shortest: 3h 58m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January9:25 AM2:35 PM5h 11m
February7:53 AM4:07 PM8h 14m
March6:23 AM5:37 PM11h 15m
April4:42 AM7:18 PM14h 35m
May3:08 AM8:52 PM17h 43m
June2:02 AM9:58 PM19h 57m
July2:32 AM9:28 PM18h 57m
August4:02 AM7:58 PM15h 55m
September5:42 AM6:18 PM12h 36m
October7:19 AM4:41 PM9h 22m
November8:56 AM3:04 PM6h 08m
December9:59 AM2:01 PM4h 03m

Nearby Stations

ALAJARVI MOKSY, Finland May 11 - October 7 TOHOLAMPI LAITALA, Finland May 12 - October 8 YLIVIESKA LENTOKENTTA, Finland May 13 - October 6 PYHAJARVI OJAKYLA, Finland May 10 - October 8 KRUUNUPYY LENTOASEMA, Finland May 7 - October 16 KAUHAVA LENTOKENTTA, Finland May 6 - October 11

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