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Weather extremes

How extreme does Wellington's weather get?

The hottest, coldest, wettest and snowiest days Wellington 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 (1972–present), from the Paraparaumu Aws station 46 km away. Updated through June 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 Wellington has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
86°F Mar 16, 2014

That is about 17°F hotter than a normal March afternoon in Wellington (typical high near 69°F).

The three most extreme on record

1 86°F Mar 16, 2014
2 86°F Feb 6, 2016
3 85°F Dec 21, 1974
❄️ Coldest night
23°F Jul 1, 2001

About 17°F colder than a normal July night in Wellington (typical low near 40°F).

The three most extreme on record

1 23°F Jul 1, 2001
2 24°F Jun 8, 2009
3 24°F Jul 2, 2012
🌧️ Most rain in one day
4.50 in May 14, 2015

More rain in a single day than Wellington usually gets in the whole month of May (typical May total about 3.2 in).

The three most extreme on record

1 4.50 in May 14, 2015
2 3.66 in Oct 20, 1998
3 3.42 in Dec 5, 2021

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 86°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Wellington's record heat sits well above even a hot day for the season — March's 86°F is about 17°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, Wellington'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 86°F and as low as 23°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 28 years of daily observations at Paraparaumu Aws, a weather station, about 46 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →