Frost Dates for Fort Nelson A, 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 15
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 14
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 20
First Fall Frost September 9

Hard Freeze (−2°C)

Last Spring Hard Freeze May 8
First Fall Hard Freeze September 24
58.83°N, -122.60°W © OpenStreetMap

Growing Season

122 Days May 15 to September 14

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.

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-25° -10° 5° 20°
-21°
High: -16°C
Avg: -21°C
Low: -25°C
Jan
-15°
High: -9°C
Avg: -15°C
Low: -20°C
Feb
-8°
High: -1°C
Avg: -8°C
Low: -15°C
Mar
3°
High: 10°C
Avg: 3°C
Low: -4°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 3°C
May
15°
High: 21°C
Avg: 15°C
Low: 9°C
Jun
17°
High: 23°C
Avg: 17°C
Low: 11°C
Jul
15°
High: 21°C
Avg: 15°C
Low: 9°C
Aug
9°
High: 15°C
Avg: 9°C
Low: 3°C
Sep
1°
High: 5°C
Avg: 1°C
Low: -4°C
Oct
-12°
High: -8°C
Avg: -12°C
Low: -16°C
Nov
-18°
High: -14°C
Avg: -18°C
Low: -22°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
5 mm
5.1 mm
Jan
0 mm
0.0 mm
Feb
8 mm
7.6 mm
Mar
3 mm
2.5 mm
Apr
38 mm
38.1 mm
May
74 mm
73.7 mm
Jun
81 mm
81.3 mm
Jul
69 mm
68.6 mm
Aug
36 mm
35.6 mm
Sep
13 mm
12.7 mm
Oct
15 mm
15.2 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6.5h9h11.5h14h16.5h18h17.5h15h12.5h10h7.5h6h
Jan: 8:40 AM – 3:20 PM · 6h 40m
Feb: 7:32 AM – 4:28 PM · 8h 56m
Mar: 6:19 AM – 5:41 PM · 11h 23m
Apr: 4:56 AM – 7:04 PM · 14h 07m
May: 3:43 AM – 8:17 PM · 16h 34m
Jun: 2:58 AM – 9:02 PM · 18h 04m
Jul: 3:17 AM – 8:43 PM · 17h 25m
Aug: 4:24 AM – 7:36 PM · 15h 11m
Sep: 5:45 AM – 6:15 PM · 12h 29m
Oct: 7:05 AM – 4:55 PM · 9h 50m
Nov: 8:20 AM – 3:40 PM · 7h 20m
Dec: 9:02 AM – 2:58 PM · 5h 56m
Daylight Longest: 18h 07m · Shortest: 5h 54m

Nearby Stations

Sikanni Chief, BC June 8 - August 15

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