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Weather extremes

How extreme does Changsha's weather get?

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

Based on 39 years of daily weather observations (1987–present), from the Changsha station 11 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 Changsha has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
105°F Aug 2, 2003

That is about 14°F hotter than a normal August afternoon in Changsha (typical high near 91°F).

The three most extreme on record

1 105°F Aug 2, 2003
2 105°F Aug 5, 2010
3 105°F Jul 24, 2024
❄️ Coldest night
13°F Dec 29, 1991

About 27°F colder than a normal December night in Changsha (typical low near 40°F).

The three most extreme on record

1 13°F Dec 29, 1991
2 17°F Feb 1, 1990
3 20°F Jan 25, 2016
🌧️ Most rain in one day
9.82 in Jun 7, 1997

More rain in a single day than Changsha usually gets in the whole month of June (typical June total about 9.5 in).

The three most extreme on record

1 9.82 in Jun 7, 1997
2 7.74 in Jul 28, 2024
3 7.44 in Jul 1, 2017

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°130° all-time high 105°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Changsha's record heat sits well above even a hot day for the season — August's 105°F is about 14°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, Changsha's warmest days reach the low 90s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 105°F and as low as 13°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 24 years of daily observations at Changsha, 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 →