Frost Dates for Atlin, BC

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 29
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. September 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 June 5
First Fall Frost August 30

Hard Freeze (−2°C)

Last Spring Hard Freeze May 8
First Fall Hard Freeze September 30
59.57°N, -133.70°W © OpenStreetMap

Growing Season

102 Days May 29 to September 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 3b

Avg. annual minimum: −35 to −30°F (−37 to −34°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dsc Subarctic (Dry Summer)

Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.

Köppen climate map

Temperature

-20° -10° 0° 10° 20°
-12°
High: -9°C
Avg: -12°C
Low: -16°C
Jan
-10°
High: -6°C
Avg: -10°C
Low: -15°C
Feb
-6°
High: 0°C
Avg: -6°C
Low: -11°C
Mar
2°
High: 7°C
Avg: 2°C
Low: -4°C
Apr
8°
High: 13°C
Avg: 8°C
Low: 2°C
May
12°
High: 18°C
Avg: 12°C
Low: 6°C
Jun
14°
High: 19°C
Avg: 14°C
Low: 8°C
Jul
13°
High: 18°C
Avg: 13°C
Low: 8°C
Aug
8°
High: 13°C
Avg: 8°C
Low: 4°C
Sep
3°
High: 6°C
Avg: 3°C
Low: 0°C
Oct
-5°
High: -2°C
Avg: -5°C
Low: -8°C
Nov
-9°
High: -6°C
Avg: -9°C
Low: -12°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
51 mm
50.8 mm
Jan
10 mm
10.2 mm
Feb
5 mm
5.1 mm
Mar
0 mm
0.0 mm
Apr
5 mm
5.1 mm
May
23 mm
22.9 mm
Jun
28 mm
27.9 mm
Jul
38 mm
38.1 mm
Aug
46 mm
45.7 mm
Sep
30 mm
30.5 mm
Oct
23 mm
22.9 mm
Nov
30 mm
30.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6.5h9h11.5h14h16.5h18.5h17.5h15.5h12.5h10h7h5.5h
Jan: 8:46 AM – 3:14 PM · 6h 28m
Feb: 7:35 AM – 4:25 PM · 8h 50m
Mar: 6:19 AM – 5:41 PM · 11h 22m
Apr: 4:54 AM – 7:06 PM · 14h 11m
May: 3:38 AM – 8:22 PM · 16h 43m
Jun: 2:51 AM – 9:09 PM · 18h 18m
Jul: 3:11 AM – 8:49 PM · 17h 37m
Aug: 4:21 AM – 7:39 PM · 15h 17m
Sep: 5:45 AM – 6:15 PM · 12h 30m
Oct: 7:07 AM – 4:53 PM · 9h 46m
Nov: 8:25 AM – 3:35 PM · 7h 10m
Dec: 9:09 AM – 2:51 PM · 5h 42m
Daylight Longest: 18h 21m · Shortest: 5h 39m

Nearby Stations

Teslin (Aut), YT June 10 - August 20 Juneau Forecast Office, AK May 9 - October 4 Annex Creek, AKMay 3 - October 14 Juneau Mile 17, AK April 29 - October 20 Auke Bay, AKApril 27 - October 18 Juneau Intl AP, AK May 4 - October 3

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