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Weather extremes

How extreme does Timaru's weather get?

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

Based on 29 years of daily weather observations (1996–present), from the Timaru Aerodrome Aws station 11 km away. Updated through August 2025 — 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 Timaru has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
100°F Jan 26, 2021

That is about 29°F hotter than a normal January afternoon in Timaru (typical high near 71°F).

The three most extreme on record

1 100°F Jan 26, 2021recent
2 98°F Feb 17, 1998
3 98°F Jan 16, 2015
❄️ Coldest night
18°F Jul 26, 2011

About 13°F colder than a normal July night in Timaru (typical low near 31°F).

The three most extreme on record

1 18°F Jul 26, 2011
2 18°F May 26, 2021
3 18°F Jun 24, 2015
🌧️ Most rain in one day
3.34 in Aug 18, 2000

More rain in a single day than Timaru usually gets in the whole month of August (typical August total about 1.5 in).

The three most extreme on record

1 3.34 in Aug 18, 2000
2 3.03 in Apr 29, 2018
3 2.91 in Nov 9, 2018

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°10°30°50°70°90°110° all-time high 100°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Timaru's record heat sits well above even a hot day for the season — January's 100°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, Timaru's warmest days reach the low 70s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 100°F and as low as 18°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 25 years of daily observations at Timaru Aerodrome Aws, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →