Frost Dates for PORVOO HARABACKA, Finland

Frost Dates

Last Spring Frost (50%) iA 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%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 18
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 5
First Fall Frost October 12

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 16
First Fall Hard Freeze November 3
60.39°N, 25.61°W © OpenStreetMap

Growing Season

171 Days April 30 to October 18

USDA Hardiness Zone iHardiness 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

Learn more

Temperature

10° 30° 50° 70°
24°
High: 28°
Avg: 24°
Low: 20°
Jan
23°
High: 27°
Avg: 23°
Low: 18°
Feb
29°
High: 34°
Avg: 29°
Low: 23°
Mar
39°
High: 46°
Avg: 39°
Low: 32°
Apr
51°
High: 58°
Avg: 51°
Low: 42°
May
59°
High: 66°
Avg: 59°
Low: 51°
Jun
65°
High: 71°
Avg: 65°
Low: 57°
Jul
62°
High: 68°
Avg: 62°
Low: 56°
Aug
53°
High: 59°
Avg: 53°
Low: 48°
Sep
43°
High: 47°
Avg: 43°
Low: 39°
Oct
35°
High: 37°
Avg: 35°
Low: 32°
Nov
29°
High: 32°
Avg: 29°
Low: 25°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.3"
2.0"
2.00"
Jan
1.6"
1.60"
Feb
1.3"
1.30"
Mar
1.2"
1.20"
Apr
1.6"
1.60"
May
3.3"
3.30"
Jun
3.3"
3.30"
Jul
3.1"
3.10"
Aug
2.3"
2.30"
Sep
2.4"
2.40"
Oct
2.7"
2.70"
Nov
2.5"
2.50"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h9h11h14h17h19h18h15h13h10h7h5h
Jan: 8:53 AM – 3:07 PM · 6h 14m
Feb: 7:38 AM – 4:22 PM · 8h 44m
Mar: 6:20 AM – 5:40 PM · 11h 20m
Apr: 4:52 AM – 7:08 PM · 14h 16m
May: 3:33 AM – 8:27 PM · 16h 54m
Jun: 2:43 AM – 9:17 PM · 18h 35m
Jul: 3:04 AM – 8:56 PM · 17h 51m
Aug: 4:18 AM – 7:42 PM · 15h 25m
Sep: 5:44 AM – 6:16 PM · 12h 31m
Oct: 7:09 AM – 4:51 PM · 9h 41m
Nov: 8:31 AM – 3:29 PM · 6h 59m
Dec: 9:18 AM – 2:42 PM · 5h 25m
Daylight Longest: 18h 38m · Shortest: 5h 22m

Nearby Stations

PORVOO EMASALO, Finland April 27 - October 21 HELSINKI-MALMIN LENTOASEMA, Finland April 30 - October 16 VANTAA HELSINKI-VANTAAN LENTOA, Finland May 2 - October 15 HELSINKI KUMPULA, Finland April 28 - October 18 HELSINKI ISOSAARI, Finland April 24 - October 24 HELSINKI ILMALA, Finland April 28 - October 19

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