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Weather extremes

How extreme does Moose Jaw's weather get?

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

Based on 28 years of daily weather observations (1998–present), from the Moose Jaw Cs station 7 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 Moose Jaw has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F Aug 11, 2018

That is about 29°F hotter than a normal August afternoon in Moose Jaw (typical high near 79°F).

The three most extreme on record

1 108°F Aug 11, 2018
2 104°F Aug 10, 2018
3 102°F Aug 7, 2001
❄️ Coldest night
-45°F Feb 8, 2019

About 46°F colder than a normal February night in Moose Jaw (typical low near 1°F).

The three most extreme on record

1 -45°F Feb 8, 2019
2 -44°F Feb 18, 2025
3 -41°F Jan 5, 2005
🌧️ Most rain in one day
3.49 in Aug 13, 1999

More rain in a single day than Moose Jaw usually gets in the whole month of August (typical August total about 2.3 in).

The three most extreme on record

1 3.49 in Aug 13, 1999
2 2.24 in Sep 3, 2014
3 2.15 in Aug 31, 2021
Most snow in one day
5.1 in Nov 15, 1998

Close to a whole typical November's snow in one day (Moose Jaw averages about 2 in across the month).

The three most extreme on record

1 5.1 in Nov 15, 1998
2 2.8 in Jan 15, 2006
3 2.5 in Mar 27, 2004

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 108°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Moose Jaw's record heat sits well above even a hot day for the season — August's 108°F is about 29°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, Moose Jaw's warmest days reach the high 70s°F and its coldest nights drop to the low 0s°F. But across the record it has gone as high as 108°F and as low as −45°F. A single day has delivered over 3 inches of rain or close to 5 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 23 years of daily observations at Moose Jaw CS, 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 →