Annual mean PM2.5
In 2025, Sault Ste. Marie recorded 6.3 µg/m³ for annual mean PM2.5. Across its 22 readings from 2004 to 2025 the average was 5.1 µg/m³, ranging from 4.0 µg/m³ in 2009 to 6.9 µg/m³ in 2023.
Measured at the nearest monitoring station.
Change in temperature of hottest day
Median projections for Sault Ste. Marie range from +2.1°C under RCP26 to +4.1°C under RCP85 by 2041-2070.
Modelled on a ~100 km grid cell, which may be shared with a neighbouring community.
Change in temperature of the coldest day
Median projections for Sault Ste. Marie range from +3.9°C under RCP26 to +7.4°C under RCP85 by 2041-2070.
Modelled on a ~100 km grid cell, which may be shared with a neighbouring community.
Change in humidex days
Sault Ste. Marie's central projection is +15 by 2041-2070.
Modelled on a ~100 km grid cell, which may be shared with a neighbouring community.
Change in growing season
Median projections for Sault Ste. Marie range from +21 under RCP26 to +40 under RCP85 by 2041-2070.
Modelled on a ~100 km grid cell, which may be shared with a neighbouring community.
Change in winter season
Median projections for Sault Ste. Marie range from -34 under RCP85 to -20 under RCP26 by 2041-2070.
Modelled on a ~100 km grid cell, which may be shared with a neighbouring community.
Annual mean temperature
In 2025, Sault Ste. Marie recorded 5.3°C for annual mean temperature. Across its 10 readings from 2016 to 2025 the average was 5.4°C, ranging from 3.5°C in 2019 to 7.1°C in 2024. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Highest temperature of the year
In 2025, Sault Ste. Marie recorded 30.8°C for highest temperature of the year. Across its 10 readings from 2016 to 2025 the average was 31.7°C, ranging from 30.8°C in 2016 to 33.0°C in 2018. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Lowest temperature of the year
In 2025, Sault Ste. Marie recorded -28.9°C for lowest temperature of the year. Across its 10 readings from 2016 to 2025 the average was -29.3°C, ranging from -32.8°C in 2017 to -22.4°C in 2024. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Total precipitation
In 2025, Sault Ste. Marie recorded 985 mm for total precipitation. Across its 10 readings from 2016 to 2025 the average was 979 mm, ranging from 754 mm in 2023 to 1,152 mm in 2019. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Total rainfall
In 2025, Sault Ste. Marie recorded 623 mm for total rainfall. Across its 10 readings from 2016 to 2025 the average was 705 mm, ranging from 535 mm in 2023 to 869 mm in 2017. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Total snowfall
In 2025, Sault Ste. Marie recorded 484 cm for total snowfall. Across its 10 readings from 2016 to 2025 the average was 363 cm, ranging from 262 cm in 2023 to 484 cm in 2025. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Days with rain
In 2025, Sault Ste. Marie recorded 103 for days with rain. Across its 10 readings from 2016 to 2025 the average was 117, ranging from 99 in 2022 to 163 in 2017. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Days with snow
In 2025, Sault Ste. Marie recorded 110 for days with snow. Across its 10 readings from 2016 to 2025 the average was 88, ranging from 67 in 2024 to 110 in 2025. 10 years describe year-to-year weather; they are too few to establish a climate trend.
Measured at the nearest monitoring station.
Average Air Quality Health Index
In 2025, Sault Ste. Marie recorded 2.1 for average Air Quality Health Index. Across its 10 readings from 2016 to 2025 the average was 2.0, ranging from 2.0 in 2016 to 2.2 in 2023.
Measured at the nearest monitoring station.
Highest Air Quality Health Index of the year
In 2025, Sault Ste. Marie recorded 11.0 for highest Air Quality Health Index of the year. Across its 10 readings from 2016 to 2025 the average was 6.2, ranging from 4.6 in 2020 to 11.0 in 2023.
Measured at the nearest monitoring station.
Lowest Air Quality Health Index of the year
In 2025, Sault Ste. Marie recorded 1.0 for lowest Air Quality Health Index of the year. Across its 10 readings from 2016 to 2025 the average was 1.0, ranging from 1.0 in 2016 to 1.0 in 2016.
Measured at the nearest monitoring station.
Daylight hours
In 2025, Sault Ste. Marie recorded 4466.8 hours for daylight hours. Across its 10 readings from 2016 to 2025 the average was 4469.3 hours, ranging from 4464.7 hours in 2023 to 4475.5 hours in 2024.
Measured at the nearest monitoring station.