Frost Dates for KOTKA HAAPASAARI, 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. October 21
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 11

Hard Freeze (−2°C)

Last Spring Hard Freeze April 18
First Fall Hard Freeze October 30
60.29°N, 27.19°W © OpenStreetMap

Growing Season

176 Days April 28 to October 21

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

Avg. annual minimum: −23 to −21°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: -7°C
Jan
-5°
High: -3°C
Avg: -5°C
Low: -8°C
Feb
-2°
High: 1°C
Avg: -2°C
Low: -5°C
Mar
4°
High: 7°C
Avg: 4°C
Low: 0°C
Apr
10°
High: 13°C
Avg: 10°C
Low: 5°C
May
14°
High: 17°C
Avg: 14°C
Low: 10°C
Jun
18°
High: 21°C
Avg: 18°C
Low: 14°C
Jul
17°
High: 20°C
Avg: 17°C
Low: 13°C
Aug
12°
High: 15°C
Avg: 12°C
Low: 9°C
Sep
6°
High: 8°C
Avg: 6°C
Low: 4°C
Oct
2°
High: 3°C
Avg: 2°C
Low: 0°C
Nov
-2°
High: 0°C
Avg: -2°C
Low: -4°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
53 mm
53.3 mm
Jan
46 mm
45.7 mm
Feb
36 mm
35.6 mm
Mar
33 mm
33.0 mm
Apr
43 mm
43.2 mm
May
74 mm
73.7 mm
Jun
58 mm
58.4 mm
Jul
69 mm
68.6 mm
Aug
71 mm
71.1 mm
Sep
76 mm
76.2 mm
Oct
71 mm
71.1 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6.5h8.5h11.5h14.5h17h18.5h18h15.5h12.5h9.5h7h5.5h
Jan: 8:52 AM – 3:08 PM · 6h 16m
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 15m
May: 3:34 AM – 8:26 PM · 16h 53m
Jun: 2:44 AM – 9:16 PM · 18h 32m
Jul: 3:05 AM – 8:55 PM · 17h 50m
Aug: 4:18 AM – 7:42 PM · 15h 24m
Sep: 5:44 AM – 6:16 PM · 12h 31m
Oct: 7:09 AM – 4:51 PM · 9h 42m
Nov: 8:30 AM – 3:30 PM · 7h 00m
Dec: 9:16 AM – 2:44 PM · 5h 27m
Daylight Longest: 18h 36m · Shortest: 5h 24m

Nearby Stations

KOTKA KIRKONMAA, Finland April 27 - October 23 KOTKA RANKKI, Finland April 28 - October 19 VIROLAHTI KOIVUNIEMI, Finland May 4 - October 17 LOVIISA ORRENGRUND, Finland April 23 - October 31 KOUVOLA ANJALA, Finland May 2 - October 15 KOUVOLA UTTI LENTOPORTINTIE, Finland May 4 - October 14

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