Frost Dates for KEMI AJOS, Finland

Elevation: 10 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 12
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 10
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 17
First Fall Frost October 5

Hard Freeze (−2°C)

Last Spring Hard Freeze May 2
First Fall Hard Freeze October 22
65.67°N, 24.52°W © OpenStreetMap

Growing Season

151 Days May 12 to October 10

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.

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.

Köppen climate map

Temperature

-15° -5° 5° 15°
-8°
High: -6°C
Avg: -8°C
Low: -11°C
Jan
-9°
High: -7°C
Avg: -9°C
Low: -11°C
Feb
-5°
High: -3°C
Avg: -5°C
Low: -8°C
Mar
0°
High: 3°C
Avg: 0°C
Low: -4°C
Apr
6°
High: 10°C
Avg: 6°C
Low: 3°C
May
12°
High: 15°C
Avg: 12°C
Low: 9°C
Jun
16°
High: 19°C
Avg: 16°C
Low: 13°C
Jul
15°
High: 17°C
Avg: 15°C
Low: 12°C
Aug
10°
High: 12°C
Avg: 10°C
Low: 7°C
Sep
3°
High: 5°C
Avg: 3°C
Low: 1°C
Oct
-1°
High: 0°C
Avg: -1°C
Low: -3°C
Nov
-5°
High: -3°C
Avg: -5°C
Low: -7°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 20 mm 40 mm 60 mm 80 mm
51 mm
50.8 mm
Jan
43 mm
43.2 mm
Feb
38 mm
38.1 mm
Mar
30 mm
30.5 mm
Apr
53 mm
53.3 mm
May
61 mm
61.0 mm
Jun
76 mm
76.2 mm
Jul
76 mm
76.2 mm
Aug
69 mm
68.6 mm
Sep
61 mm
61.0 mm
Oct
64 mm
63.5 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec4h8h11h15h18.5h21.5h20h16.5h12.5h9h5.5h2.5h
Jan: 9:58 AM – 2:02 PM · 4h 05m
Feb: 8:06 AM – 3:54 PM · 7h 48m
Mar: 6:25 AM – 5:35 PM · 11h 10m
Apr: 4:34 AM – 7:26 PM · 14h 52m
May: 2:45 AM – 9:15 PM · 18h 31m
Jun: 1:10 AM – 10:50 PM · 21h 39m
Jul: 1:57 AM – 10:03 PM · 20h 06m
Aug: 3:49 AM – 8:11 PM · 16h 23m
Sep: 5:40 AM – 6:20 PM · 12h 39m
Oct: 7:28 AM – 4:32 PM · 9h 04m
Nov: 9:21 AM – 2:39 PM · 5h 19m
Dec: 10:50 AM – 1:10 PM · 2h 19m
Daylight Longest: 21h 49m · Shortest: 2h 11m

Nearby Stations

KEMINMAA KEMI-TORNION LENTOASE, Finland May 13 - October 7 HAPARANDA, Sweden May 11 - October 12 HAPARANDA_A, Sweden May 11 - October 12 KEMI I MAJAKKA, Finland May 8 - October 27 OULU VIHREASAARI, Finland May 10 - October 12 OVERTORNEA, Sweden May 15 - October 3

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