Frost Dates for JOKIOINEN JOKIOISTEN OBSERVATO, Finland

Elevation: 101 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. May 5
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 11
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 9
First Fall Frost October 4

Hard Freeze (−2°C)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 21
60.81°N, 23.50°W © OpenStreetMap

Growing Season

159 Days May 5 to October 11

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 5b

Avg. annual minimum: −26 to −23°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°
-5°
High: -3°C
Avg: -5°C
Low: -8°C
Jan
-6°
High: -3°C
Avg: -6°C
Low: -9°C
Feb
-2°
High: 1°C
Avg: -2°C
Low: -6°C
Mar
4°
High: 8°C
Avg: 4°C
Low: -1°C
Apr
10°
High: 15°C
Avg: 10°C
Low: 5°C
May
15°
High: 19°C
Avg: 15°C
Low: 10°C
Jun
17°
High: 21°C
Avg: 17°C
Low: 13°C
Jul
16°
High: 20°C
Avg: 16°C
Low: 12°C
Aug
11°
High: 14°C
Avg: 11°C
Low: 8°C
Sep
5°
High: 7°C
Avg: 5°C
Low: 3°C
Oct
1°
High: 2°C
Avg: 1°C
Low: -1°C
Nov
-3°
High: -1°C
Avg: -3°C
Low: -5°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
51 mm
50.8 mm
Jan
30 mm
30.5 mm
Feb
28 mm
27.9 mm
Mar
36 mm
35.6 mm
Apr
46 mm
45.7 mm
May
81 mm
81.3 mm
Jun
84 mm
83.8 mm
Jul
81 mm
81.3 mm
Aug
64 mm
63.5 mm
Sep
74 mm
73.7 mm
Oct
69 mm
68.6 mm
Nov
61 mm
61.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h8.5h11.5h14.5h17h18.5h18h15.5h12.5h9.5h7h5.5h
Jan: 8:57 AM – 3:03 PM · 6h 07m
Feb: 7:40 AM – 4:20 PM · 8h 40m
Mar: 6:20 AM – 5:40 PM · 11h 20m
Apr: 4:51 AM – 7:09 PM · 14h 18m
May: 3:30 AM – 8:30 PM · 17h 00m
Jun: 2:38 AM – 9:22 PM · 18h 44m
Jul: 3:00 AM – 8:60 PM · 17h 59m
Aug: 4:16 AM – 7:44 PM · 15h 28m
Sep: 5:44 AM – 6:16 PM · 12h 32m
Oct: 7:11 AM – 4:49 PM · 9h 39m
Nov: 8:34 AM – 3:26 PM · 6h 53m
Dec: 9:22 AM – 2:38 PM · 5h 15m
Daylight Longest: 18h 48m · Shortest: 5h 13m

Nearby Stations

SOMERO SALKOLA, Finland May 3 - October 12 SALO KIIKALA LENTOKENTTA, Finland May 4 - October 12 SALO KARKKA, Finland April 30 - October 15 SALO SUOMUSJARVI, Finland May 2 - October 16 HAMEENLINNA KATINEN, Finland April 30 - October 17 VIHTI MAASOJA, Finland April 29 - October 17

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