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Weather extremes

How extreme does Granollers's weather get?

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

Based on 17 years of daily weather observations (2008–present), from the Parets Del Valles station 7 km away. Updated through December 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 Granollers has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
106°F Jul 18, 2023

That is about 19°F hotter than a normal July afternoon in Granollers (typical high near 87°F).

The three most extreme on record

1 106°F Jul 18, 2023recent
2 104°F Aug 23, 2023
3 103°F Aug 4, 2018
❄️ Coldest night
19°F Feb 5, 2012

About 19°F colder than a normal February night in Granollers (typical low near 38°F).

The three most extreme on record

1 19°F Feb 5, 2012
2 22°F Dec 20, 2009
3 23°F Feb 4, 2012
🌧️ Most rain in one day
3.80 in Sep 29, 2012

More rain in a single day than Granollers usually gets in the whole month of September (typical September total about 2.1 in).

The three most extreme on record

1 3.80 in Sep 29, 2012
2 3.00 in Jan 21, 2020
3 2.77 in Dec 18, 2020

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 106°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Granollers's record heat sits well above even a hot day for the season — July's 106°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, Granollers'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 106°F and as low as 19°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 12 years of daily observations at Parets Del Valles, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →