Frost Dates for Bow Valley, AB
Elevation: 1298 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.
June 13
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.
August 9
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 20
First Fall Frost
July 29
Hard Freeze (−2°C)
Last Spring Hard Freeze
May 28
First Fall Hard Freeze
September 10
Growing Season
57 Days
June 13 to August 9
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 3b
Avg. annual minimum: −37 to −34°C
Köppen Climate
The 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.
Temperature
-15°
-5°
5°
15°
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 | -1° | -6° | -12° |
| February | 1° | -5° | -11° |
| March | 4° | -2° | -8° |
| April | 9° | 3° | -4° |
| May | 15° | 8° | 1° |
| June | 19° | 12° | 5° |
| July | 24° | 16° | 7° |
| August | 23° | 15° | 6° |
| September | 18° | 10° | 3° |
| October | 10° | 5° | -1° |
| November | 3° | -2° | -7° |
| December | -2° | -6° | -11° |
Precipitation
0 mm
50 mm
100 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 3 |
| February | 5 |
| March | 18 |
| April | 25 |
| May | 66 |
| June | 104 |
| July | 33 |
| August | 53 |
| September | 51 |
| October | 30 |
| November | 8 |
| December | 0 |
Sunrise / Sunset
Daylight
Longest: 16h 20m · Shortest: 7h 40m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:55 AM | 4:05 PM | 8h 09m |
| February | 7:08 AM | 4:52 PM | 9h 44m |
| March | 6:14 AM | 5:46 PM | 11h 32m |
| April | 5:13 AM | 6:47 PM | 13h 35m |
| May | 4:20 AM | 7:40 PM | 15h 19m |
| June | 3:51 AM | 8:09 PM | 16h 18m |
| July | 4:03 AM | 7:57 PM | 15h 54m |
| August | 4:49 AM | 7:11 PM | 14h 22m |
| September | 5:49 AM | 6:11 PM | 12h 22m |
| October | 6:48 AM | 5:12 PM | 10h 23m |
| November | 7:42 AM | 4:18 PM | 8h 36m |
| December | 8:09 AM | 3:51 PM | 7h 42m |
Nearby Stations
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