Frost Dates for VANTAA HELSINKI-VANTAAN LENTOA, Finland
Elevation: 50 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 2
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 15
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 6
First Fall Frost
October 10
Hard Freeze (−2°C)
Last Spring Hard Freeze
April 21
First Fall Hard Freeze
October 29
Growing Season
166 Days
May 2 to October 15
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
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.
Temperature
-10°
0°
10°
20°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | -3° | -5° | -7° |
| February | -3° | -5° | -8° |
| March | 1° | -2° | -6° |
| April | 8° | 4° | 0° |
| May | 15° | 10° | 5° |
| June | 19° | 15° | 10° |
| July | 22° | 18° | 14° |
| August | 20° | 17° | 13° |
| September | 15° | 12° | 8° |
| October | 8° | 6° | 3° |
| November | 3° | 1° | -1° |
| December | 0° | -2° | -4° |
Precipitation
0 mm
30 mm
60 mm
90 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 53 |
| February | 43 |
| March | 30 |
| April | 33 |
| May | 41 |
| June | 74 |
| July | 81 |
| August | 84 |
| September | 64 |
| October | 64 |
| November | 71 |
| December | 69 |
Sunrise / Sunset
Daylight
Longest: 18h 37m · Shortest: 5h 23m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:52 AM | 3:08 PM | 6h 15m |
| February | 7:38 AM | 4:22 PM | 8h 44m |
| March | 6:20 AM | 5:40 PM | 11h 20m |
| April | 4:52 AM | 7:08 PM | 14h 15m |
| May | 3:33 AM | 8:27 PM | 16h 53m |
| June | 2:43 AM | 9:17 PM | 18h 33m |
| July | 3:05 AM | 8:55 PM | 17h 50m |
| August | 4:18 AM | 7:42 PM | 15h 24m |
| September | 5:44 AM | 6:16 PM | 12h 31m |
| October | 7:09 AM | 4:51 PM | 9h 42m |
| November | 8:30 AM | 3:30 PM | 6h 60m |
| December | 9:17 AM | 2:43 PM | 5h 26m |
Nearby Stations
HELSINKI-MALMIN LENTOASEMA, Finland
April 30 - October 16
HELSINKI KUMPULA, Finland
April 28 - October 18
HELSINKI ILMALA, Finland
April 28 - October 19
HELSINKI RAUTATIENTORI, Finland
April 27 - October 20
HELSINKI KAISANIEMI AWS, Finland
April 28 - October 19
ESPOO SEPANKYLA, Finland
April 27 - October 23
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