Frost Dates for MUSTASAARI VALASSAARET, Finland

Elevation: 2 m

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 28
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. November 8
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 1
First Fall Frost November 1

Hard Freeze (−2°C)

Last Spring Hard Freeze April 15
First Fall Hard Freeze November 24
63.44°N, 21.07°W © OpenStreetMap

Growing Season

194 Days April 28 to November 8

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 7b

Avg. annual minimum: −15 to −12°C

Learn more

Köppen Climate iThe 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

-10° 0° 10° 20°
-3°
High: -1°C
Avg: -3°C
Low: -4°C
Jan
-5°
High: -3°C
Avg: -5°C
Low: -7°C
Feb
-3°
High: -1°C
Avg: -3°C
Low: -5°C
Mar
0°
High: 2°C
Avg: 0°C
Low: -1°C
Apr
5°
High: 7°C
Avg: 5°C
Low: 4°C
May
10°
High: 11°C
Avg: 10°C
Low: 9°C
Jun
15°
High: 16°C
Avg: 15°C
Low: 14°C
Jul
15°
High: 16°C
Avg: 15°C
Low: 15°C
Aug
12°
High: 13°C
Avg: 12°C
Low: 11°C
Sep
6°
High: 7°C
Avg: 6°C
Low: 5°C
Oct
3°
High: 4°C
Avg: 3°C
Low: 2°C
Nov
0°
High: 1°C
Avg: 0°C
Low: -1°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
38 mm
38.1 mm
Jan
28 mm
27.9 mm
Feb
20 mm
20.3 mm
Mar
25 mm
25.4 mm
Apr
38 mm
38.1 mm
May
56 mm
55.9 mm
Jun
64 mm
63.5 mm
Jul
81 mm
81.3 mm
Aug
69 mm
68.6 mm
Sep
79 mm
78.7 mm
Oct
69 mm
68.6 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec5h8h11h14.5h17.5h20h19h16h12.5h9.5h6h4h
Jan: 9:25 AM – 2:35 PM · 5h 11m
Feb: 7:53 AM – 4:07 PM · 8h 14m
Mar: 6:23 AM – 5:37 PM · 11h 15m
Apr: 4:43 AM – 7:17 PM · 14h 35m
May: 3:08 AM – 8:52 PM · 17h 43m
Jun: 2:02 AM – 9:58 PM · 19h 56m
Jul: 2:32 AM – 9:28 PM · 18h 56m
Aug: 4:02 AM – 7:58 PM · 15h 55m
Sep: 5:42 AM – 6:18 PM · 12h 36m
Oct: 7:19 AM – 4:41 PM · 9h 22m
Nov: 8:56 AM – 3:04 PM · 6h 08m
Dec: 9:59 AM – 2:01 PM · 4h 03m
Daylight Longest: 20h 01m · Shortest: 3h 59m

Nearby Stations

HOLMON A, Sweden May 5 - October 15 MAALAHTI STROMMINGSBADAN, Finland April 17 - November 8 UMEA_FLYGPLATS, Sweden May 3 - October 16 KORSNAS BREDSKARET, Finland April 27 - October 25 VAASA VAASAN LENTOASEMA, Finland May 4 - October 14 PIETARSAARI KALLAN, Finland May 3 - October 25

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