ClimateAverages

Sault Ste. Marie Climate

Ontario, Canada · population 74,948 · 157 weather stations within 200 km · records 1754 to 2025

Average annual daytime high
9.1°C
Warmest month · July
23.1°C
Typical daytime high
Coldest month · February
-15.5°C
Typical overnight low

Sault Ste. Marie has an average annual daytime high of 9.1°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 23.1°C, and its coldest is February, with overnight lows near -15.5°C.

Month by month averages

MonthAvg highAvg low
January-5.7°C-15.2°C
February-4.5°C-15.5°CColdest
March0.6°C-10.3°C
April8.0°C-2.6°C
May15.3°C3.0°C
June20.3°C7.9°C
July23.1°C11.1°CWarmest
August22.4°C11.4°C
September17.6°C7.6°C
October11.6°C2.5°C
November3.9°C-3.3°C
December-2.8°C-11.2°C

Temperature range across the year

-17°-7°4°14°25°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+2.8°C vs. 1951–1980
Coldest year on record
1874
-2.6°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Sault Ste. Marie getting hotter?

Since 1900, Sault Ste. Marie's average temperature has risen by +2.3°C. Compared to the earliest station records that begin in 1754, warming totals +2.5°C.

3.2°3.9°4.6°5.4°6.1°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Sault Ste. Marie?

Sault Ste. Marie's average annual daytime high is 9.1°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 23.1°C, and the coldest is February, with lows averaging -15.5°C.

What is the warmest month in Sault Ste. Marie?

July is the warmest month in Sault Ste. Marie, with typical daytime highs of 23.1°C.

What is the hottest year on record for Sault Ste. Marie?

2011 is the hottest year on record for Sault Ste. Marie, running +2.8°C above the 1951 to 1980 baseline.

Is Sault Ste. Marie getting hotter?

Yes. Since 1900, Sault Ste. Marie has warmed by roughly +2.3°C.

When is the best time to visit Sault Ste. Marie?

May to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.