Frost Dates for RANUA LENTOKENTTA, Finland

Elevation: 169 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 18
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. September 28

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 23
First Fall Frost September 22

Hard Freeze (−2°C)

Last Spring Hard Freeze May 8
First Fall Hard Freeze October 8
65.98°N, 26.37°E © OpenStreetMap

Growing Season

133 Days May 18 to September 28

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 5a

Avg. annual minimum: −29 to −26°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-8°-10°-13°
February-8°-10°-13°
March-3°-6°-9°
April3°0°-4°
May10°6°2°
June16°13°8°
July19°16°12°
August16°13°10°
September11°8°5°
October3°1°-1°
November-2°-4°-6°
December-5°-7°-10°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January38
February25
March28
April28
May64
June74
July84
August81
September64
October64
November56
December56

Sunrise / Sunset

Daylight Longest: 22h 14m · Shortest: 1h 47m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January10:03 AM1:57 PM3h 53m
February8:08 AM3:52 PM7h 44m
March6:25 AM5:35 PM11h 09m
April4:33 AM7:27 PM14h 55m
May2:41 AM9:19 PM18h 38m
June12:59 AM11:01 PM22h 02m
July1:51 AM10:09 PM20h 18m
August3:46 AM8:14 PM16h 27m
September5:40 AM6:20 PM12h 40m
October7:29 AM4:31 PM9h 02m
November9:25 AM2:35 PM5h 11m
December11:02 AM12:58 PM1h 57m

Nearby Stations

ROVANIEMI RAUTATIEASEMA, Finland May 18 - September 30 ROVANIEMI APUKKA, Finland May 18 - September 30 PUDASJARVI LENTOKENTTA, Finland May 16 - September 28 KEMIJARVI LENTOKENTTA, Finland May 20 - September 27 OULU VIHREASAARI, Finland May 10 - October 12 OULUNSALO PELLONPAA, Finland May 10 - October 9

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