Climate Overview
The climate in Saint-Boniface is cool. The average annual temperature is 5°C and approximately 1103mm of precipitation falls per year. Saint-Boniface receives a notable amount of rainfall throughout the year, including during its driest month. Saint-Boniface is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -15°C. Snowfall occurs from January to December, with around 191cm accumulating over the season.
Temperature
Saint-Boniface has a wide annual temperature range, spanning 40°C from the coldest to warmest months. The warmest month is July, when average highs reach 25°C and the mean temperature sits around 20°C. January brings the harshest conditions, with lows dropping to -15°C and an average temperature of -11°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 8°C shift in average temperatures.
Precipitation
Saint-Boniface is a moderately rainy area, receiving approximately 1103mm of precipitation annually, which averages out to around 92mm per month. The wettest month is August, averaging 123mm of rainfall. October and June also tend to see above-average precipitation. The driest month is January, with just 66mm. That's 57mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 191cm accumulating over the season. January typically sees the most snow at around 43cm.
Wind
Saint-Boniface is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
88 days until Summer
It is currently spring in Saint-Boniface, which began on March 20, 2026. Saint-Boniface is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 25°C, while the coldest stretch bottoms out in January near -15°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from -8 to 19°C. Precipitation is moderate at around 277mm for the season, averaging 92mm per month. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 11 to 25°C. Rainfall is heavy, totalling around 330mm across the season with a monthly average of 110mm. Winds are generally light, averaging 14km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -3 to 20°C. Precipitation is moderate at around 277mm for the season, averaging 92mm per month. Expect around 24cm of snow accumulation during this period. Winds are moderate at around 16km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -15 to -2°C. Precipitation is moderate at around 218mm for the season, averaging 73mm per month. Expect around 117cm of snow accumulation during this period. Winds are moderate at around 16km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Saint-Boniface based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
