Frost Dates for Fort St John A, Canada

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 11
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 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 May 18
First Fall Frost September 11

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 1
First Fall Hard Freeze September 27
56.23°N, -120.73°W © OpenStreetMap

Growing Season

129 Days May 11 to September 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

Learn more

Temperature

0° 20° 40° 60° 80°
8°
High: 15°
Avg: 8°
Low: 1°
Jan
16°
High: 23°
Avg: 16°
Low: 8°
Feb
23°
High: 31°
Avg: 23°
Low: 15°
Mar
39°
High: 48°
Avg: 39°
Low: 30°
Apr
50°
High: 60°
Avg: 50°
Low: 39°
May
58°
High: 67°
Avg: 58°
Low: 48°
Jun
61°
High: 71°
Avg: 61°
Low: 52°
Jul
59°
High: 69°
Avg: 59°
Low: 49°
Aug
51°
High: 60°
Avg: 51°
Low: 42°
Sep
38°
High: 45°
Avg: 38°
Low: 31°
Oct
21°
High: 28°
Avg: 21°
Low: 15°
Nov
13°
High: 19°
Avg: 13°
Low: 6°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3"
0.1"
0.10"
Jan
0.4"
0.40"
Feb
0.6"
0.60"
Mar
0.3"
0.30"
Apr
1.0"
1.00"
May
3.0"
3.00"
Jun
3.0"
3.00"
Jul
1.7"
1.70"
Aug
1.9"
1.90"
Sep
0.8"
0.80"
Oct
0.8"
0.80"
Nov
0.4"
0.40"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7h9h11h14h16h17h17h15h12h10h8h7h
Jan: 8:22 AM – 3:38 PM · 7h 15m
Feb: 7:23 AM – 4:37 PM · 9h 15m
Mar: 6:17 AM – 5:43 PM · 11h 26m
Apr: 5:03 AM – 6:57 PM · 13h 55m
May: 3:58 AM – 8:02 PM · 16h 05m
Jun: 3:19 AM – 8:41 PM · 17h 21m
Jul: 3:35 AM – 8:25 PM · 16h 49m
Aug: 4:34 AM – 7:26 PM · 14h 52m
Sep: 5:47 AM – 6:13 PM · 12h 27m
Oct: 6:59 AM – 5:01 PM · 10h 03m
Nov: 8:05 AM – 3:55 PM · 7h 50m
Dec: 8:41 AM – 3:19 PM · 6h 39m
Daylight Longest: 17h 24m · Shortest: 6h 37m

Nearby Stations

Chetwynd A, Canada May 29 - September 5 Spirit River Auto Station, Canada May 16 - September 19 Beaverlodge Rcs, Canada May 20 - September 10

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