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Weather extremes

How extreme does San Juan de los Lagos's weather get?

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

Based on 34 years of daily weather observations (1991–present), from the Jesus Teran Intl / Aguascalientes Intl station 51 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 San Juan de los Lagos has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
104°F May 31, 2001

That is about 15°F hotter than a normal May afternoon in San Juan de los Lagos (typical high near 89°F).

The three most extreme on record

1 104°F May 31, 2001
2 103°F May 21, 2013
3 102°F May 19, 2015
❄️ Coldest night
21°F Jan 18, 2006

About 17°F colder than a normal January night in San Juan de los Lagos (typical low near 38°F).

The three most extreme on record

1 21°F Jan 18, 2006
2 23°F Dec 26, 2006
3 23°F Dec 17, 2010
🌧️ Most rain in one day
18.33 in Aug 19, 2009

More rain in a single day than San Juan de los Lagos usually gets in the whole month of August (typical August total about 3.6 in).

The three most extreme on record

1 18.33 in Aug 19, 2009
2 7.99 in Sep 3, 2002
3 7.99 in Jun 23, 2003

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 104°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

San Juan de los Lagos's record heat sits well above even a hot day for the season — May's 104°F is about 15°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, San Juan de los Lagos's warmest days reach the high 80s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 104°F and as low as 21°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 — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at San Gaspar De Los Reyes, about 18 km from the city centre.

How we build these numbers →