Frost Dates for Chilliwack R Hatchery, 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. April 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. October 26
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 April 22
First Fall Frost October 21

Hard Freeze (−2°C)

Last Spring Hard Freeze March 7
First Fall Hard Freeze November 15
49.08°N, -121.70°W © OpenStreetMap

Growing Season

194 Days April 15 to October 26

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 8a

Avg. annual minimum: 10 to 15°F (−12 to −9°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

-5° 5° 15° 25°
2°
High: 4°C
Avg: 2°C
Low: -1°C
Jan
4°
High: 8°C
Avg: 4°C
Low: 0°C
Feb
6°
High: 10°C
Avg: 6°C
Low: 2°C
Mar
9°
High: 14°C
Avg: 9°C
Low: 4°C
Apr
12°
High: 18°C
Avg: 12°C
Low: 7°C
May
15°
High: 20°C
Avg: 15°C
Low: 10°C
Jun
18°
High: 24°C
Avg: 18°C
Low: 12°C
Jul
18°
High: 24°C
Avg: 18°C
Low: 12°C
Aug
15°
High: 20°C
Avg: 15°C
Low: 9°C
Sep
10°
High: 14°C
Avg: 10°C
Low: 5°C
Oct
5°
High: 7°C
Avg: 5°C
Low: 2°C
Nov
2°
High: 4°C
Avg: 2°C
Low: 0°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 75 mm 150 mm 225 mm
203 mm
203.2 mm
Jan
119 mm
119.4 mm
Feb
155 mm
154.9 mm
Mar
107 mm
106.7 mm
Apr
89 mm
88.9 mm
May
97 mm
96.5 mm
Jun
48 mm
48.3 mm
Jul
58 mm
58.4 mm
Aug
84 mm
83.8 mm
Sep
157 mm
157.5 mm
Oct
224 mm
223.5 mm
Nov
188 mm
188.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 27m
Feb: 7:03 AM – 4:57 PM · 9h 53m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:28 AM – 7:32 PM · 15h 05m
Jun: 4:01 AM – 7:59 PM · 15h 59m
Jul: 4:12 AM – 7:48 PM · 15h 36m
Aug: 4:54 AM – 7:06 PM · 14h 12m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:34 AM – 4:26 PM · 8h 51m
Dec: 7:59 AM – 4:01 PM · 8h 01m
Daylight Longest: 16h 00m · Shortest: 7h 60m

Nearby Stations

Sardis, BCApril 6 - October 30 Chilliwack, BC April 10 - October 31 Agassiz Cda, BC March 23 - November 14 Agassiz Cs, BC March 20 - November 15 Laidlaw, BCMarch 25 - November 13 Hope Slide, BCMay 9 - October 7

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