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Weather extremes

How extreme does New Plymouth's weather get?

The hottest, coldest, wettest and snowiest days New Plymouth 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 New Plymouth Aws station 10 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 New Plymouth has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
87°F Jan 4, 1975

That is about 16°F hotter than a normal January afternoon in New Plymouth (typical high near 71°F).

The three most extreme on record

1 87°F Jan 4, 1975
2 87°F Jan 6, 2013
3 86°F Jan 20, 2008
❄️ Coldest night
27°F Jul 26, 2011

About 15°F colder than a normal July night in New Plymouth (typical low near 42°F).

The three most extreme on record

1 27°F Jul 26, 2011
2 28°F Jun 29, 1978
3 28°F Jul 7, 2008
🌧️ Most rain in one day
5.38 in Feb 5, 2022

More rain in a single day than New Plymouth usually gets in the whole month of February (typical February total about 3.4 in).

The three most extreme on record

1 5.38 in Feb 5, 2022recent
2 4.65 in Apr 5, 1993
3 4.09 in Apr 22, 2019

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° all-time high 87°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

New Plymouth's record heat sits well above even a hot day for the season — January's 87°F is about 16°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, New Plymouth's warmest days reach the low 70s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 87°F and as low as 27°F. A single day has delivered over 5 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 29 years of daily observations at New Plymouth Aws, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →