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Weather extremes

How extreme does Chur's weather get?

The hottest, coldest, wettest and snowiest days Chur 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 Altdorf station 68 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 Chur has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
98°F Aug 13, 2003

That is about 23°F hotter than a normal August afternoon in Chur (typical high near 75°F).

The three most extreme on record

1 98°F Aug 13, 2003
2 96°F Jul 16, 2003
3 95°F Aug 11, 2003
❄️ Coldest night
6°F Feb 10, 2013

About 23°F colder than a normal February night in Chur (typical low near 30°F).

The three most extreme on record

1 6°F Feb 10, 2013
2 7°F Feb 5, 2012
3 7°F Jan 18, 2017
🌧️ Most rain in one day
10.87 in Jul 9, 1994

More rain in a single day than Chur usually gets in the whole month of July (typical July total about 5.7 in).

The three most extreme on record

1 10.87 in Jul 9, 1994
2 5.87 in May 3, 2002
3 4.76 in Dec 22, 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° all-time high 98°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Chur's record heat sits well above even a hot day for the season — August's 98°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, Chur's warmest days reach the mid-70s°F and its coldest nights drop to the high 20s°F. But across the record it has gone as high as 98°F and as low as 6°F. A single day has delivered over 11 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 a national meteorological service, measured at Bad Ragaz, about 19 km from the city centre.

How we build these numbers →