Frost Dates for KEMIJARVI LENTOKENTTA, Finland
Elevation: 218 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 20
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 27
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 25
First Fall Frost
September 21
Hard Freeze (−2°C)
Last Spring Hard Freeze
May 12
First Fall Hard Freeze
October 12
Growing Season
130 Days
May 20 to September 27
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
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.
Temperature
-15°
-5°
5°
15°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | -8° | -11° | -13° |
| February | -8° | -11° | -13° |
| March | -3° | -6° | -9° |
| April | 3° | -1° | -4° |
| May | 9° | 5° | 1° |
| June | 15° | 12° | 8° |
| July | 18° | 15° | 11° |
| August | 16° | 13° | 10° |
| September | 10° | 7° | 5° |
| October | 2° | 0° | -1° |
| November | -3° | -5° | -7° |
| December | -6° | -8° | -11° |
Precipitation
0 mm
30 mm
60 mm
90 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 23 |
| February | 8 |
| March | 23 |
| April | 23 |
| May | 61 |
| June | 79 |
| July | 84 |
| August | 79 |
| September | 66 |
| October | 66 |
| November | 51 |
| December | 36 |
Sunrise / Sunset
Daylight
Longest: 24h 00m · Shortest: 0h 00m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 10:19 AM | 1:41 PM | 3h 22m |
| February | 8:13 AM | 3:47 PM | 7h 34m |
| March | 6:26 AM | 5:34 PM | 11h 07m |
| April | 4:29 AM | 7:31 PM | 15h 01m |
| May | 2:31 AM | 9:29 PM | 18h 58m |
| June | – | – | 24h (midnight sun) |
| July | 1:35 AM | 10:25 PM | 20h 51m |
| August | 3:41 AM | 8:19 PM | 16h 38m |
| September | 5:39 AM | 6:21 PM | 12h 41m |
| October | 7:33 AM | 4:27 PM | 8h 55m |
| November | 9:35 AM | 2:25 PM | 4h 50m |
| December | – | – | 0h (polar night) |
Nearby Stations
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