How extreme does Lạng Sơn's weather get?

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

Based on 33 years of daily weather observations (1992–present), from the Lang Son station 2 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 Lạng Sơn has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

104°F Sep 24, 1993

That is about 17°F hotter than a normal September afternoon in Lạng Sơn (typical high near 86°F).

The three most extreme on record

1 104°F Sep 24, 1993

2 103°F Jun 3, 1992

3 102°F Jul 17, 1992

❄️ Coldest night

28°F Dec 21, 1999

About 24°F colder than a normal December night in Lạng Sơn (typical low near 52°F).

The three most extreme on record

1 28°F Dec 21, 1999

2 32°F Dec 30, 1995

3 32°F Dec 31, 1995

🌧️ Most rain in one day

17.52 in Aug 15, 1995

More rain in a single day than Lạng Sơn usually gets in the whole month of August (typical August total about 8.8 in).

The three most extreme on record

1 17.52 in Aug 15, 1995

2 9.06 in Jun 11, 1994

3 9.00 in Sep 17, 2014

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.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Lạng Sơn's record heat sits well above even a hot day for the season — September's 104°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, Lạng Sơn's warmest days reach the high 80s°F and its coldest nights drop to the low 50s°F. But across the record it has gone as high as 104°F and as low as 28°F. A single day has delivered over 18 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 Lang Son, 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 →

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