Frost Dates for Jasper, AB

Based on data from Jasper Warden weather station, 4 miles away

Elevation: 1062 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. June 13
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 17
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 18
First Fall Frost August 4

Hard Freeze (−2°C)

Last Spring Hard Freeze May 28
First Fall Hard Freeze September 16
52.88°N, -118.08°W © OpenStreetMap

Growing Season

65 Days June 13 to August 17

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.

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° 25°
-9°
High: -3°C
Avg: -9°C
Low: -15°C
Jan
-6°
High: 1°C
Avg: -6°C
Low: -13°C
Feb
-2°
High: 4°C
Avg: -2°C
Low: -9°C
Mar
3°
High: 11°C
Avg: 3°C
Low: -4°C
Apr
8°
High: 17°C
Avg: 8°C
Low: 0°C
May
13°
High: 20°C
Avg: 13°C
Low: 5°C
Jun
15°
High: 24°C
Avg: 15°C
Low: 7°C
Jul
15°
High: 23°C
Avg: 15°C
Low: 6°C
Aug
10°
High: 18°C
Avg: 10°C
Low: 2°C
Sep
4°
High: 10°C
Avg: 4°C
Low: -2°C
Oct
-3°
High: 2°C
Avg: -3°C
Low: -8°C
Nov
-9°
High: -4°C
Avg: -9°C
Low: -14°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
3 mm
2.5 mm
Jan
3 mm
2.5 mm
Feb
3 mm
2.5 mm
Mar
5 mm
5.1 mm
Apr
15 mm
15.2 mm
May
48 mm
48.3 mm
Jun
46 mm
45.7 mm
Jul
46 mm
45.7 mm
Aug
25 mm
25.4 mm
Sep
15 mm
15.2 mm
Oct
10 mm
10.2 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h9.5h11.5h13.5h15.5h16.5h16h14.5h12.5h10.5h8.5h7.5h
Jan: 9:06 AM – 4:57 PM · 7h 52m
Feb: 8:20 AM – 5:54 PM · 9h 34m
Mar: 8:17 AM – 7:47 PM · 11h 30m
Apr: 7:02 AM – 8:43 PM · 13h 41m
May: 6:01 AM – 9:35 PM · 15h 34m
Jun: 5:33 AM – 10:11 PM · 16h 38m
Jul: 5:52 AM – 10:04 PM · 16h 12m
Aug: 6:41 AM – 9:12 PM · 14h 32m
Sep: 7:35 AM – 7:58 PM · 12h 24m
Oct: 8:29 AM – 6:46 PM · 10h 16m
Nov: 8:27 AM – 4:48 PM · 8h 21m
Dec: 9:07 AM – 4:29 PM · 7h 21m
Daylight Mountain Time (MT) Longest: 16h 40m · Shortest: 7h 20m

Nearby Stations

Brule Black Cat, AB June 14 - August 19 Willow Creek 1, AB June 26 - July 11 Cariboo Lodge, BC May 24 - September 9 Hendrickson Creek, AB June 28 - July 7 Mica Dam, BCMay 13 - October 3 Blue River A, BC May 28 - September 8

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