Climate Severity Index Lethbridge Climate Normals

SouthGrow is characterized by mild winters and warm summers, with residents enjoying close to 2,400 hours of sunshine per year.  Other areas of Canada average 1,200 to less than 2,400 hours of sunshine per year.  Chinook winds in the region reduce the severity and length of the winters and ease the many hot summer days.  Relatively dry air provides comfortable atmosphere for the residents. 

This area’s growing season, based on an average daily temperature of at least 5 degrees Celcius is over 185 days.  Precipitation between May 1^st and August 31^st, the period that provides the most water for successful crop production averages between 200 and 250 mm per year for the region.

Quick Facts*

Average Maximum Temperature
12.1

Average Minimum Temperature
-1.0

Average Yearly Snowfall
160 cm

Average Yearly Rainfall
262 mm

Number Frost Free Days
117

Last Killing Spring Frost
May 7

First Killing Fall Frost
Sept 25

Number of Crop Days
140

… Creating Opportunities through our clean environment