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Weather extremes

How extreme does Lào Cai's weather get?

The hottest, coldest, wettest and snowiest days Lào Cai 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 Lao Cai 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 Lào Cai has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
107°F Apr 27, 2024

That is about 23°F hotter than a normal April afternoon in Lào Cai (typical high near 85°F).

The three most extreme on record

1 107°F Apr 27, 2024recent
2 106°F May 7, 2003
3 106°F Jun 4, 2017
❄️ Coldest night
33°F Dec 29, 1999

About 25°F colder than a normal December night in Lào Cai (typical low near 59°F).

The three most extreme on record

1 33°F Dec 29, 1999
2 33°F Dec 7, 2019
3 34°F Feb 4, 2007
🌧️ Most rain in one day
14.94 in May 8, 2006

More rain in a single day than Lào Cai usually gets in the whole month of May (typical May total about 7.0 in).

The three most extreme on record

1 14.94 in May 8, 2006
2 10.98 in Jun 7, 1998
3 9.38 in Aug 9, 2008

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 107°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Lào Cai's record heat sits well above even a hot day for the season — April's 107°F is about 23°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, Lào Cai's warmest days reach the low 90s°F and its coldest nights drop to the high 50s°F. But across the record it has gone as high as 107°F and as low as 33°F. A single day has delivered over 15 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 Lao Cai, 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 →