Climate Change Chart of Méribel, France

Overview of climate changes

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference of +4.95 mm/day compared with the earlier reference period. This is an unweighted average of monthly means, not a day-weighted annual figure, and does not mean snowfall changed by this amount in every month. The largest monthly increase was in March, at a difference of +16.90 mm/day. The largest monthly decrease occurred in June, with a difference of -1.15 mm/day. These figures describe mean daily snowfall, not monthly totals.

Temperature changes

Averaged across calendar months, monthly mean temperatures show a difference of +2.12 °C compared with the earlier reference period. This is an unweighted mean of the monthly means, not a day-weighted annual average, and it does not imply that every month changed by the same amount. The largest monthly increase was in December, with a difference of +5.54 °C. This identifies the strongest increase among the reported monthly changes; it describes monthly mean temperature, not daytime highs.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.39 mm/day compared with the earlier reference period. This is an unweighted average across calendar-month means, not a day-weighted annual average, and it should not be read as the change in every month. The largest monthly increase occurred in July, at a difference of +1.13 mm/day. By contrast, November had the largest monthly decrease, a difference of -0.61 mm/day. These are changes in mean daily rainfall, not monthly rainfall totals.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.42 hours/day compared with the earlier reference period. The figure is an unweighted mean of monthly means rather than a day-weighted annual average, so it summarizes the calendar months without describing each month individually. The largest monthly decrease was in March, with a difference of -0.90 hours/day. In June, the largest monthly increase was a difference of +0.04 hours/day; these monthly contrasts sit alongside the overall mean difference rather than representing every month's change.