Frost Dates for LAPPEENRANTA KONNUNSUO, Finland

Elevation: 44 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. April 30
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 18

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 4
First Fall Frost October 13

Hard Freeze (−2°C)

Last Spring Hard Freeze April 22
First Fall Hard Freeze November 3
61.04°N, 28.57°E © OpenStreetMap

Growing Season

171 Days April 30 to October 18

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 6a

Avg. annual minimum: −23 to −21°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

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°-6°-8°
February-4°-7°-9°
March0°-3°-6°
April7°3°-1°
May14°10°5°
June19°15°11°
July22°18°14°
August20°16°13°
September14°11°9°
October7°5°3°
November2°0°-2°
December-2°-4°-6°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January51
February38
March28
April25
May53
June71
July76
August76
September66
October74
November66
December66

Sunrise / Sunset

Daylight Longest: 18h 53m · Shortest: 5h 07m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:59 AM3:01 PM6h 02m
February7:41 AM4:19 PM8h 38m
March6:20 AM5:40 PM11h 19m
April4:50 AM7:10 PM14h 19m
May3:28 AM8:32 PM17h 04m
June2:35 AM9:25 PM18h 49m
July2:58 AM9:02 PM18h 03m
August4:15 AM7:45 PM15h 31m
September5:44 AM6:16 PM12h 32m
October7:11 AM4:49 PM9h 38m
November8:35 AM3:25 PM6h 49m
December9:25 AM2:35 PM5h 10m

Nearby Stations

LAPPEENRANTA HIEKKAPAKKA, Finland May 3 - October 23 LAPPEENRANTA LEPOLA, Finland May 3 - October 18 LAPPEENRANTA LENTOASEMA, Finland May 1 - October 18 VYBORG, RussiaMay 1 - October 18 PUUMALA KIRKONKYLA, Finland May 1 - October 22 PARIKKALA KOITSANLAHTI, Finland May 4 - October 15

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