Climate Change Chart of Verbier, Switzerland

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +2.88 °C compared with the earlier reference period; this unweighted comparison summarizes monthly means, not daytime maximum temperatures or a continuous trend. The largest monthly increase was in December, with a difference of +8.04 °C. This identifies the strongest increase among the monthly comparisons, rather than describing every month.

Changes in snowfall

Mean daily snowfall averaged across calendar months shows a difference of +2.58 mm/day compared with the earlier reference period. This is an unweighted summary of monthly means, not a day-weighted annual average or monthly total. The largest monthly increase was in January, with a difference of +9.80 mm/day, whereas June had the largest decrease, with a difference of -2.12 mm/day. Together, these results show that monthly snowfall differences varied in direction; the aggregate increase does not describe each individual month.

Changes in rainfall

Mean daily rainfall averaged across calendar months shows a difference of +0.65 mm/day in the more recent period. This is an unweighted average of calendar-month means, not a day-weighted annual average or a change in monthly rainfall totals. The largest monthly increase occurred in October, with a difference of +1.56 mm/day; that monthly result is one part of the wider comparison and should not be taken to apply to every month.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months shows a difference of -0.40 hours/day, indicating lower sunshine in the more recent reference period on this aggregate measure. The monthly pattern was not uniform: the largest decrease was in March, with a difference of -0.88 hours/day, while June recorded the largest increase, a difference of +0.03 hours/day. These monthly comparisons describe mean daily hours, not total sunshine over a month, and the average difference does not imply the same change in every month.