The hottest, coldest, wettest and snowiest days La Chaux-de-Fonds has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 18 years of daily weather observations (2007–present), from the Boltigen station 67 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 La Chaux-de-Fonds
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
95°FJul 7, 2015
The three most extreme on record
195°FJul 7, 2015
294°FJul 11, 2023
393°FJul 25, 2019
❄️Coldest night
-1°FJan 16, 2017
The three most extreme on record
1-1°FJan 16, 2017
21°FJan 20, 2017
31°FJan 20, 2023
🌧️Most rain in one day
2.79 inDec 24, 2022
The three most extreme on record
12.79 inDec 24, 2022recent
22.71 inJan 5, 2018
32.37 inMay 2, 2015
In plain terms
Across the record, La Chaux-de-Fonds has reached as high as 95°F and as low as −1°F. A single day has delivered over 3 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 La Chaux-de-fonds, about 3 km from the city centre.