Frost Dates for Grande Prairie A, AB
Elevation: 669 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 21
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 11
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
May 26
First Fall Frost
September 5
Hard Freeze (−2°C)
Last Spring Hard Freeze
May 9
First Fall Hard Freeze
September 23
Growing Season
113 Days
May 21 to September 11
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 2b
Avg. annual minimum: −43 to −40°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 | -9° | -14° | -20° |
| February | -5° | -10° | -16° |
| March | 0° | -6° | -11° |
| April | 10° | 4° | -2° |
| May | 16° | 10° | 3° |
| June | 21° | 14° | 8° |
| July | 23° | 16° | 10° |
| August | 22° | 15° | 8° |
| September | 17° | 11° | 4° |
| October | 9° | 3° | -2° |
| November | -1° | -6° | -11° |
| December | -7° | -12° | -18° |
Precipitation
0 mm
20 mm
40 mm
60 mm
80 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 8 |
| February | 5 |
| March | 3 |
| April | 8 |
| May | 43 |
| June | 64 |
| July | 71 |
| August | 48 |
| September | 30 |
| October | 10 |
| November | 10 |
| December | 5 |
Sunrise / Sunset
Daylight
Mountain Time (MT)
Longest: 17h 09m · Shortest: 6h 51m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 9:21 AM | 4:49 PM | 7h 28m |
| February | 8:30 AM | 5:51 PM | 9h 21m |
| March | 8:21 AM | 7:49 PM | 11h 28m |
| April | 7:01 AM | 8:51 PM | 13h 50m |
| May | 5:55 AM | 9:49 PM | 15h 54m |
| June | 5:23 AM | 10:29 PM | 17h 06m |
| July | 5:43 AM | 10:19 PM | 16h 36m |
| August | 6:37 AM | 9:22 PM | 14h 45m |
| September | 7:37 AM | 8:03 PM | 12h 26m |
| October | 8:37 AM | 6:44 PM | 10h 07m |
| November | 8:40 AM | 4:41 PM | 8h 00m |
| December | 9:25 AM | 4:18 PM | 6h 53m |
Nearby Stations
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