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Weather extremes

How extreme does Okotoks's weather get?

The hottest, coldest, wettest and snowiest days Okotoks 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 (2008–2024), from the Black Diamond station 12 km away. Updated through April 2024 — 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 Okotoks has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
101°F Aug 10, 2018

That is about 26°F hotter than a normal August afternoon in Okotoks (typical high near 75°F).

The three most extreme on record

1 101°F Aug 10, 2018
2 96°F Aug 9, 2018
3 96°F Aug 14, 2021
❄️ Coldest night
-42°F Jan 12, 2024

About 49°F colder than a normal January night in Okotoks (typical low near 7°F).

The three most extreme on record

1 -42°F Jan 12, 2024recent
2 -38°F Jan 15, 2020
3 -38°F Dec 27, 2021
🌧️ Most rain in one day
4.30 in Jul 11, 2011

More rain in a single day than Okotoks usually gets in the whole month of July (typical July total about 1.8 in).

The three most extreme on record

1 4.30 in Jul 11, 2011
2 2.09 in Jun 19, 2013
3 1.90 in May 26, 2011

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.

-70°-50°-30°-10°10°30°50°70°90°110°130° all-time high 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Okotoks's record heat sits well above even a hot day for the season — August's 101°F is about 26°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, Okotoks'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 101°F and as low as −42°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 30 years of daily observations at Okotoks, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →