Climate-Zone.com

HomeCitiesCanadaQuebecThetford-MinesTools › Weather extremes

Weather extremes

How extreme does Thetford-Mines's weather get?

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

Based on 20 years of daily weather observations (2006–present), from the Thetford Mines Rcs station 6 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 Thetford-Mines has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
90°F May 27, 2020

That is about 28°F hotter than a normal May afternoon in Thetford-Mines (typical high near 62°F).

The three most extreme on record

1 90°F May 27, 2020
2 90°F Jun 21, 2020
3 90°F Jun 23, 2020
❄️ Coldest night
-31°F Jan 2, 2014

About 34°F colder than a normal January night in Thetford-Mines (typical low near 3°F).

The three most extreme on record

1 -31°F Jan 2, 2014
2 -30°F Jan 16, 2009
3 -28°F Jan 22, 2014
🌧️ Most rain in one day
4.28 in Aug 28, 2011

About 82% of a typical August's rain in a single day (Thetford-Mines averages roughly 5.2 in across the month).

The three most extreme on record

1 4.28 in Aug 28, 2011
2 2.63 in Oct 21, 2016
3 2.55 in Aug 8, 2022

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 90°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Thetford-Mines's record heat sits well above even a hot day for the season — May's 90°F is about 28°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, Thetford-Mines's warmest days reach the mid-70s°F and its coldest nights drop to the low 0s°F. But across the record it has gone as high as 90°F and as low as −31°F. A single day has delivered over 4 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 27 years of daily observations at Thetford Mines, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →