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Weather extremes

How extreme does Mount Barker's weather get?

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

Based on 50+ years of daily weather observations (1971–present), from the Mount Barker station 1 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 Mount Barker has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
112°F Jan 28, 2009

That is about 30°F hotter than a normal January afternoon in Mount Barker (typical high near 82°F).

The three most extreme on record

1 112°F Jan 28, 2009
2 112°F Jan 24, 2019
3 110°F Jan 26, 2026
❄️ Coldest night
24°F Jun 14, 1972

About 19°F colder than a normal June night in Mount Barker (typical low near 43°F).

The three most extreme on record

1 24°F Jun 14, 1972
2 24°F Jun 8, 1982
3 24°F Jul 16, 1982
🌧️ Most rain in one day
3.09 in Apr 27, 1971

More rain in a single day than Mount Barker usually gets in the whole month of April (typical April total about 1.9 in).

The three most extreme on record

1 3.09 in Apr 27, 1971
2 2.99 in Dec 28, 2016
3 2.92 in Mar 16, 1985

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.

10°30°50°70°90°110°130° all-time high 112°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Mount Barker's record heat sits well above even a hot day for the season — January's 112°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, Mount Barker's warmest days reach the low 80s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 112°F and as low as 24°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 30 years of daily observations at Mount Barker, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →