Frost Dates for Whitehorse, Canada

Based on data from Whitehorse A weather station, 0 miles away

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. June 3
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. August 28
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 8
First Fall Frost August 21

Hard Freeze (−2°C)

Last Spring Hard Freeze May 19
First Fall Hard Freeze September 18
60.72°N, -135.05°W © OpenStreetMap

Growing Season

86 Days June 3 to August 28

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 2b

Avg. annual minimum: −45 to −40°F (−43 to −40°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° -5° 10° 25°
-16°
High: -12°C
Avg: -16°C
Low: -20°C
Jan
-12°
High: -7°C
Avg: -12°C
Low: -16°C
Feb
-7°
High: -2°C
Avg: -7°C
Low: -13°C
Mar
2°
High: 7°C
Avg: 2°C
Low: -4°C
Apr
8°
High: 14°C
Avg: 8°C
Low: 1°C
May
13°
High: 19°C
Avg: 13°C
Low: 6°C
Jun
14°
High: 21°C
Avg: 14°C
Low: 8°C
Jul
13°
High: 19°C
Avg: 13°C
Low: 7°C
Aug
7°
High: 12°C
Avg: 7°C
Low: 3°C
Sep
1°
High: 4°C
Avg: 1°C
Low: -3°C
Oct
-9°
High: -6°C
Avg: -9°C
Low: -12°C
Nov
-13°
High: -9°C
Avg: -13°C
Low: -17°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
8 mm
7.6 mm
Jan
0 mm
0.0 mm
Feb
0 mm
0.0 mm
Mar
0 mm
0.0 mm
Apr
0 mm
0.0 mm
May
23 mm
22.9 mm
Jun
25 mm
25.4 mm
Jul
43 mm
43.2 mm
Aug
18 mm
17.8 mm
Sep
3 mm
2.5 mm
Oct
10 mm
10.2 mm
Nov
3 mm
2.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h8.5h11.5h14.5h17h18.5h18h15.5h12.5h9.5h7h5.5h
Jan: 8:56 AM – 3:04 PM · 6h 08m
Feb: 7:40 AM – 4:20 PM · 8h 41m
Mar: 6:20 AM – 5:40 PM · 11h 20m
Apr: 4:51 AM – 7:09 PM · 14h 18m
May: 3:31 AM – 8:29 PM · 16h 59m
Jun: 2:39 AM – 9:21 PM · 18h 42m
Jul: 3:01 AM – 8:59 PM · 17h 57m
Aug: 4:16 AM – 7:44 PM · 15h 28m
Sep: 5:44 AM – 6:16 PM · 12h 32m
Oct: 7:10 AM – 4:50 PM · 9h 40m
Nov: 8:33 AM – 3:27 PM · 6h 54m
Dec: 9:21 AM – 2:39 PM · 5h 18m
Daylight Longest: 18h 45m · Shortest: 5h 15m

Nearby Stations

Whitehorse Riverdale, YT June 5 - August 31 Mayo Road, YTJune 16 - August 11 Takhini River Ranch, YT June 17 - August 3 Blanchard River, YT June 23 - July 28 Skagway AP, AK April 21 - October 17 Skagway, AKMay 6 - October 1

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