Stony Plain (AB) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Stony Plain.
Climate overview of Stony Plain
Temperatures in Stony Plain, Alberta, Canada, vary greatly throughout the year. July is the hottest month at 24°C (75°F), while January is the coldest at -6°C (21°F).
Stony Plain sees a moderate amount of rain/snowfall, totalling around 535 mm (21 in) per year. It experiences a distinct dry season from October to April, with warm summers and very cold winters, creating some seasonal variation. The most sunshine falls in July, with an average of 10.2 hours of daily sunshine.
Stony Plain Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Stony Plain - and find the best time to visit.
Monthly Temperature in Stony Plain
The climate in Stony Plain is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a very cold -6°C (21°F) during cooler months like January.
At night, you can expect temperatures ranging from 11°C (52°F) in July to around -16°C (3°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Stony Plain
Generally, Stony Plain receives mid-range precipitation levels, with 535 mm (21 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, July it receives moderate rainfall, averaging 97 mm (3.8 in) of precipitation, recorded across 14 rainy days. In contrast, the driest month February brings less snowfall, with 18 mm (0.7 in) over 9 snowy days. For more details, please visit our Stony Plain Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Stony Plain
Seasonal changes in sunshine hours are quite dramatic in Stony Plain. While July receives considerable daily sunshine with up to 10.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Stony Plain by Month
The relative humidity is moderate throughout the year in Stony Plain.
The city experiences its highest humidity in January, reaching 65%. In May, the humidity drops to its lowest level at 40%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Stony Plain
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: April, October and November
- Seasonal pattern: A distinct dry season from October to April, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -16°C (3°F).
Frequently asked questions about the climate in Stony Plain
What is the best time to visit Stony Plain?
June, July and August typically offer the most optimal weather in Stony Plain. In contrast, January, February, March, November and December tend to have less optimal conditions. Stony Plain has a distinct dry season from October to April, with warm summers and very cold winters.
What temperatures can I expect in Stony Plain?
Daytime highs range from -6°C (21°F) in January to 24°C (75°F) in July. Nighttime lows range from -16°C (3°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Stony Plain get?
Annual rainfall is around 535 mm (21 in). July is the wettest month with 97 mm (3.8 in), while February is the driest with 18 mm (0.7 in).
How sunny is Stony Plain?
Stony Plain receives around 2,339 hours of sunshine per year. July is the sunniest month with 307 hours, while December is the cloudiest with just 84 hours. Overall, Stony Plain enjoys abundant sunshine.
Stony Plain 3-Day Forecast
Stony Plain on the map
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