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Weather extremes

How extreme does Pierrefonds-Roxboro's weather get?

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

Based on 33 years of daily weather observations (1993–present), from the Ste-Anne-De-Bellevue 1 station 10 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 Pierrefonds-Roxboro has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
97°F May 27, 2020

That is about 30°F hotter than a normal May afternoon in Pierrefonds-Roxboro (typical high near 67°F).

The three most extreme on record

1 97°F May 27, 2020
2 96°F Jul 10, 2020
3 95°F Aug 14, 2002
❄️ Coldest night
-27°F Jan 26, 1994

About 34°F colder than a normal January night in Pierrefonds-Roxboro (typical low near 7°F).

The three most extreme on record

1 -27°F Jan 26, 1994
2 -27°F Jan 15, 2004
3 -27°F Jan 16, 2009
🌧️ Most rain in one day
3.09 in Nov 1, 1994

More rain in a single day than Pierrefonds-Roxboro usually gets in the whole month of November (typical November total about 3.0 in).

The three most extreme on record

1 3.09 in Nov 1, 1994
2 2.95 in Sep 30, 2010
3 2.93 in Nov 8, 1996

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

Pierrefonds-Roxboro's record heat sits well above even a hot day for the season — May's 97°F is about 30°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, Pierrefonds-Roxboro's warmest days reach the high 70s°F and its coldest nights drop to the high 0s°F. But across the record it has gone as high as 97°F and as low as −27°F. A single day has delivered over 3 inches of rain. 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 22 years of daily observations at Montreal/pierre Elliott Trudeau Intl A, a weather station, about 8 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →