Frost Dates for Collins Bay, SK

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. September 16
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 September 13

Hard Freeze (−2°C)

Last Spring Hard Freeze May 22
First Fall Hard Freeze September 28
58.18°N, -103.70°W © OpenStreetMap

Growing Season

105 Days June 3 to September 16

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 3a

Avg. annual minimum: −40 to −35°F (−40 to −37°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

-30° -15° 0° 15°
-23°
High: -19°C
Avg: -23°C
Low: -27°C
Jan
-19°
High: -15°C
Avg: -19°C
Low: -24°C
Feb
-14°
High: -8°C
Avg: -14°C
Low: -19°C
Mar
-4°
High: 2°C
Avg: -4°C
Low: -10°C
Apr
5°
High: 10°C
Avg: 5°C
Low: -1°C
May
13°
High: 18°C
Avg: 13°C
Low: 7°C
Jun
16°
High: 21°C
Avg: 16°C
Low: 11°C
Jul
14°
High: 19°C
Avg: 14°C
Low: 10°C
Aug
8°
High: 12°C
Avg: 8°C
Low: 4°C
Sep
-1°
High: 2°C
Avg: -1°C
Low: -4°C
Oct
-11°
High: -8°C
Avg: -11°C
Low: -15°C
Nov
-20°
High: -16°C
Avg: -20°C
Low: -24°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
3 mm
2.5 mm
Jan
8 mm
7.6 mm
Feb
15 mm
15.2 mm
Mar
15 mm
15.2 mm
Apr
28 mm
27.9 mm
May
48 mm
48.3 mm
Jun
84 mm
83.8 mm
Jul
81 mm
81.3 mm
Aug
66 mm
66.0 mm
Sep
53 mm
53.3 mm
Oct
13 mm
12.7 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7h9h11.5h14h16.5h18h17.5h15h12.5h10h7.5h6h
Jan: 8:35 AM – 3:25 PM · 6h 49m
Feb: 7:30 AM – 4:30 PM · 9h 01m
Mar: 6:18 AM – 5:42 PM · 11h 24m
Apr: 4:58 AM – 7:02 PM · 14h 04m
May: 3:47 AM – 8:13 PM · 16h 26m
Jun: 3:04 AM – 8:56 PM · 17h 52m
Jul: 3:22 AM – 8:38 PM · 17h 16m
Aug: 4:27 AM – 7:33 PM · 15h 06m
Sep: 5:46 AM – 6:14 PM · 12h 29m
Oct: 7:03 AM – 4:57 PM · 9h 53m
Nov: 8:16 AM – 3:44 PM · 7h 28m
Dec: 8:56 AM – 3:04 PM · 6h 08m
Daylight Longest: 17h 55m · Shortest: 6h 05m

Nearby Stations

Collins Bay Cameco, SK June 4 - September 7 Cigar Lake, SKJune 7 - August 31

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