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Weather extremes

How extreme does Lucca's weather get?

The hottest, coldest, wettest and snowiest days Lucca 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 Pisa station 20 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 Lucca has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
102°F Jul 29, 2005

That is about 16°F hotter than a normal July afternoon in Lucca (typical high near 86°F).

The three most extreme on record

1 102°F Jul 29, 2005
2 101°F Aug 22, 2011
3 101°F Aug 5, 2003
❄️ Coldest night
18°F Feb 24, 1993

About 20°F colder than a normal February night in Lucca (typical low near 37°F).

The three most extreme on record

1 18°F Feb 24, 1993
2 19°F Jan 3, 1993
3 19°F Jan 6, 1993
🌧️ Most rain in one day
10.12 in Aug 25, 1993

More rain in a single day than Lucca usually gets in the whole month of August (typical August total about 1.9 in).

The three most extreme on record

1 10.12 in Aug 25, 1993
2 10.04 in Mar 16, 1994
3 8.66 in Sep 23, 1991

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 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Lucca's record heat sits well above even a hot day for the season — July's 102°F is about 16°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, Lucca's warmest days reach the mid-80s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 102°F and as low as 18°F. A single day has delivered over 10 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 Pisa, a weather station, about 20 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →