Climate-Zone.com

HomeCitiesAustraliaNew South WalesNewcastleTools › Weather extremes

Weather extremes

How extreme does Newcastle's weather get?

The hottest, coldest, wettest and snowiest days Newcastle 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 Newcastle Nobbys Signal Statio station 2 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 Newcastle has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F Dec 23, 1990

That is about 32°F hotter than a normal December afternoon in Newcastle (typical high near 76°F).

The three most extreme on record

1 108°F Dec 23, 1990
2 108°F Jan 18, 2013
3 107°F Jan 1, 2006
❄️ Coldest night
35°F Jul 27, 1986

About 14°F colder than a normal July night in Newcastle (typical low near 49°F).

The three most extreme on record

1 35°F Jul 27, 1986
2 37°F Jun 13, 1975
3 37°F Jul 26, 1986
🌧️ Most rain in one day
9.91 in Feb 3, 1990

More rain in a single day than Newcastle usually gets in the whole month of February (typical February total about 4.3 in).

The three most extreme on record

1 9.91 in Feb 3, 1990
2 8.26 in Jun 9, 2007
3 7.90 in Jan 6, 2016

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

Newcastle's record heat sits well above even a hot day for the season — December's 108°F is about 32°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, Newcastle's warmest days reach the high 70s°F and its coldest nights drop to the high 40s°F. But across the record it has gone as high as 108°F and as low as 35°F. A single day has delivered over 10 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 Newcastle Nobbys Signal Statio, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →