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Weather extremes

How extreme does Sault Ste. Marie's weather get?

The hottest, coldest, wettest and snowiest days Sault Ste. Marie has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 28 years of daily weather observations (1998–present), from the Sault Ste Marie station 3 km away. Updated through May 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Sault Ste. Marie has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
97°F Jul 12, 2005

That is about 21°F hotter than a normal July afternoon in Sault Ste. Marie (typical high near 76°F).

The three most extreme on record

1 97°F Jul 12, 2005
2 97°F Aug 2, 2007
3 95°F Jul 29, 2015
❄️ Coldest night
-31°F Mar 3, 2003

About 44°F colder than a normal March night in Sault Ste. Marie (typical low near 13°F).

The three most extreme on record

1 -31°F Mar 3, 2003
2 -31°F Feb 20, 2015
3 -29°F Mar 4, 2003
🌧️ Most rain in one day
3.16 in Oct 1, 2019

About 69% of a typical October's rain in a single day (Sault Ste. Marie averages roughly 4.6 in across the month).

The three most extreme on record

1 3.16 in Oct 1, 2019
2 3.12 in Sep 24, 2010
3 2.89 in Nov 18, 2013
Most snow in one day
13.8 in Dec 25, 2022

About 50% of a typical December's snow in a single day (Sault Ste. Marie averages roughly 28 in across the month).

The three most extreme on record

1 13.8 in Dec 25, 2022recent
2 12.1 in Nov 21, 2014
3 12.0 in Dec 21, 2012

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-50°-30°-10°10°30°50°70°90°110° all-time high 97°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Sault Ste. Marie's record heat sits well above even a hot day for the season — July's 97°F is about 21°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Sault Ste. Marie's warmest days reach the mid-70s°F and its coldest nights drop to the mid-0s°F. But across the record it has gone as high as 97°F and as low as −31°F. A single day has delivered over 3 inches of rain or close to 14 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Sault Ste Marie A, a weather station, about 14 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →