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Weather extremes

How extreme does Squamish's weather get?

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

Based on 44 years of daily weather observations (1982–present), from the Squamish Aut0 station 9 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 Squamish has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
109°F Jun 28, 2021

That is about 39°F hotter than a normal June afternoon in Squamish (typical high near 70°F).

The three most extreme on record

1 109°F Jun 28, 2021recent
2 106°F Jun 27, 2021
3 104°F Aug 12, 2021
❄️ Coldest night
0°F Dec 21, 1990

About 30°F colder than a normal December night in Squamish (typical low near 30°F).

The three most extreme on record

1 0°F Dec 21, 1990
2 1°F Dec 28, 2021
3 3°F Feb 1, 1989
🌧️ Most rain in one day
6.47 in Nov 10, 1990

About 42% of a typical November's rain in a single day (Squamish averages roughly 15.6 in across the month).

The three most extreme on record

1 6.47 in Nov 10, 1990
2 5.39 in Oct 17, 2003
3 5.34 in Nov 15, 2006
Most snow in one day
16.5 in Dec 30, 1990

The three most extreme on record

1 16.5 in Dec 30, 1990
2 15.8 in Nov 1, 1984
3 15.7 in Mar 1, 1991

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.

-10°10°30°50°70°90°110°130° all-time high 109°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Squamish's record heat sits well above even a hot day for the season — June's 109°F is about 39°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, Squamish's warmest days reach the mid-70s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 109°F and as low as 0°F. A single day has delivered over 6 inches of rain or close to 17 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 30 years of daily observations at Squamish Airport, a weather station, about 9 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →