Frost Dates for Chetwynd A, BC
Elevation: 610 m
Frost Dates
Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide.
May 29
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date.
September 5
30% Probability
Only 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 3
First Fall Frost
August 26
Hard Freeze (−2°C)
Last Spring Hard Freeze
May 14
First Fall Hard Freeze
September 21
Growing Season
99 Days
May 29 to September 5
USDA Hardiness Zone
Hardiness 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 −37°C
Köppen Climate
The 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.
Temperature
-20°
-5°
10°
25°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | -5° | -10° | -15° |
| February | -2° | -7° | -13° |
| March | 3° | -3° | -9° |
| April | 11° | 4° | -2° |
| May | 17° | 10° | 3° |
| June | 20° | 14° | 7° |
| July | 23° | 16° | 9° |
| August | 22° | 15° | 8° |
| September | 17° | 10° | 4° |
| October | 9° | 4° | -1° |
| November | 0° | -5° | -9° |
| December | -5° | -9° | -14° |
Precipitation
0 mm
30 mm
60 mm
90 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 0 |
| February | 3 |
| March | 8 |
| April | 8 |
| May | 38 |
| June | 84 |
| July | 66 |
| August | 53 |
| September | 28 |
| October | 18 |
| November | 20 |
| December | 8 |
Sunrise / Sunset
Daylight
Mountain Standard Time (MST)
Longest: 17h 16m · Shortest: 6h 44m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 9:35 AM | 4:57 PM | 7h 22m |
| February | 8:42 AM | 6:00 PM | 9h 18m |
| March | 7:33 AM | 6:60 PM | 11h 27m |
| April | 6:11 AM | 8:03 PM | 13h 52m |
| May | 5:03 AM | 9:02 PM | 15h 59m |
| June | 4:30 AM | 9:43 PM | 17h 13m |
| July | 4:51 AM | 9:33 PM | 16h 42m |
| August | 5:46 AM | 8:35 PM | 14h 49m |
| September | 6:48 AM | 7:14 PM | 12h 26m |
| October | 7:49 AM | 5:54 PM | 10h 05m |
| November | 8:54 AM | 4:49 PM | 7h 55m |
| December | 9:39 AM | 4:26 PM | 6h 46m |
Nearby Stations
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