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Weather extremes

How extreme does Tres Cantos's weather get?

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

Based on 48 years of daily weather observations (1978–present), from the Colmenar Viejo/Famet station 12 km away. Updated through April 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 Tres Cantos has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
104°F Aug 12, 1987

That is about 19°F hotter than a normal August afternoon in Tres Cantos (typical high near 85°F).

The three most extreme on record

1 104°F Aug 12, 1987
2 102°F Aug 4, 1987
3 102°F Aug 13, 1987
❄️ Coldest night
14°F Jan 20, 1978

About 21°F colder than a normal January night in Tres Cantos (typical low near 35°F).

The three most extreme on record

1 14°F Jan 20, 1978
2 14°F Jan 27, 2005
3 16°F Dec 15, 2001
🌧️ Most rain in one day
4.06 in Nov 7, 1982

More rain in a single day than Tres Cantos usually gets in the whole month of November (typical November total about 2.6 in).

The three most extreme on record

1 4.06 in Nov 7, 1982
2 3.42 in Aug 21, 2003
3 3.05 in Sep 3, 2023

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

Tres Cantos's record heat sits well above even a hot day for the season — August's 104°F is about 19°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, Tres Cantos's warmest days reach the mid-80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 104°F and as low as 14°F. A single day has delivered over 4 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 30 years of daily observations at Colmenar Viejo/famet, a weather station, about 12 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →