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Weather extremes

How extreme does Fergus's weather get?

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

Based on 16 years of daily weather observations (2010–present), from the Kitchener/Waterloo station 27 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 Fergus has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
96°F Jul 21, 2011

That is about 14°F hotter than a normal July afternoon in Fergus (typical high near 82°F).

The three most extreme on record

1 96°F Jul 21, 2011
2 95°F Jul 20, 2011
3 95°F Jul 7, 2020
❄️ Coldest night
-29°F Feb 16, 2015

About 42°F colder than a normal February night in Fergus (typical low near 13°F).

The three most extreme on record

1 -29°F Feb 16, 2015
2 -23°F Feb 12, 2014
3 -21°F Jan 29, 2022
🌧️ Most rain in one day
2.42 in Jul 23, 2010

About 81% of a typical July's rain in a single day (Fergus averages roughly 3.0 in across the month).

The three most extreme on record

1 2.42 in Jul 23, 2010
2 2.42 in Sep 22, 2021
3 2.09 in Sep 10, 2014

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 96°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Fergus's record heat sits well above even a hot day for the season — July's 96°F is about 14°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, Fergus's warmest days reach the low 80s°F and its coldest nights drop to the low 10s°F. But across the record it has gone as high as 96°F and as low as −29°F. A single day has delivered over 2 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 28 years of daily observations at Fergus Moe, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

How we build these numbers →