Lethbridge (AB) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Lethbridge.
Climate overview of Lethbridge
Lethbridge, Alberta, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 27°C (81°F) in July, while winters cool to 1°C (34°F) in January.
The city has a relatively dry climate, receiving around 472 mm (19 in) of rain/snowfall per year. It does experience two distinct dry seasons, October to March and July to August, with warm summers and very cold winters. June is the wettest month and January the driest.
Lethbridge Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lethbridge - and find the best time to visit.
Monthly Temperature in Lethbridge
Depending on the time of the year, temperatures range from comfortable to very cold in Lethbridge. On average, daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold 1°C (34°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to -10°C (14°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Lethbridge
Lethbridge has a relatively dry climate with low precipitation, averaging 472 mm (19 in) of rain/snowfall annually. The seasons in Lethbridge bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 100 mm (3.9 in) of precipitation. This rainfall is distributed across 10 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 18 mm (0.7 in) over 9 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Lethbridge Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Lethbridge
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July, August and September
- Warmest weather: July and August
- Fewest rainy days: February, October and November
- Wettest months: April, May and June, when rainfall is highest.
- Seasonal pattern: Two distinct dry seasons, October to March and July to August, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Lethbridge
What is the best time to visit Lethbridge?
July, August and September typically offer the most optimal weather in Lethbridge. In contrast, January, February and December tend to have less optimal conditions. Lethbridge has two distinct dry seasons, October to March and July to August, with warm summers and very cold winters.
What temperatures can I expect in Lethbridge?
Daytime highs range from 1°C (34°F) in January to 27°C (81°F) in July. Nighttime lows range from -10°C (14°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Lethbridge get?
Annual rainfall is around 472 mm (19 in). June is the wettest month with 100 mm (3.9 in), while January is the driest with 18 mm (0.7 in).
Lethbridge 3-Day Forecast
Lethbridge on the map
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