Stony Plain (AB) Weather & Climate: Best Time to Visit

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

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

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

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