Climate Change Chart of Toulouse, France

Overview of climate changes

Temperature changes

Monthly mean temperature was higher by a mean difference of +1.07 °C averaged across calendar months in the more recent period; this is an unweighted summary of the monthly means, not a day-weighted annual average or a measure of daytime highs. The largest monthly increase was in December, with a difference of +2.80 °C compared with the earlier reference period, highlighting that the average shift was not identical in every month.

Changes in rainfall

Mean daily rainfall increased by a difference of +0.36 mm/day averaged across calendar months, an unweighted summary of monthly means rather than an annual total or a description of every month. The largest monthly increase occurred in November, with a difference of +1.10 mm/day. By contrast, May had the largest monthly decrease, a difference of -0.13 mm/day; these month-specific changes show that the overall mean does not describe rainfall shifts uniformly across the calendar.

Changes in sunshine duration

Mean daily sunshine duration was lower by a mean difference of -0.41 hours/day averaged across calendar months. This is an unweighted summary of monthly mean daily hours, not a day-weighted annual figure. The largest monthly decrease was in October, with a difference of -0.72 hours/day, while September recorded the largest increase, a difference of +0.11 hours/day. The contrasting monthly changes qualify the overall decrease: it should not be read as a reduction in every month's sunshine.

Changes in snowfall

Mean daily snowfall decreased by a difference of -0.20 mm/day averaged across calendar months, using an unweighted summary of monthly means rather than a monthly total. The largest monthly decrease was in January, with a difference of -1.39 mm/day; February, meanwhile, had the largest increase, a difference of +0.14 mm/day. These opposing monthly differences indicate that the mean change does not represent the same shift in every month.