Climate Change Chart of Faroe Islands, Denmark

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature was higher by a difference of +0.59 °C in the more recent period; this is an unweighted comparison of monthly means, not a day-weighted annual average or a measure of daytime highs. The changes were not uniform across the highlighted months: February had the largest monthly increase, a difference of +1.72 °C, while July had the largest monthly decrease, a difference of -0.80 °C. These extremes describe specific monthly averages and do not imply that every month followed the same direction.

Changes in rainfall

Mean daily rainfall, rather than monthly totals, was higher by a difference of +0.51 mm/day when monthly means are averaged across calendar months; that summary is unweighted and does not mean rainfall increased in every month. The largest monthly increase was in December, at a difference of +1.75 mm/day, whereas April recorded the largest monthly decrease, a difference of -0.57 mm/day. The contrasting monthly differences show why the aggregate comparison should not be read as a uniform change throughout the year.

Changes in sunshine duration

The unweighted mean of daily sunshine hours across calendar months was lower by a difference of -0.36 hours/day in the more recent period; this describes an aggregate of monthly means, not a day-weighted annual figure. The largest monthly decrease occurred in May, with a difference of -1.42 hours/day. In contrast, August saw the largest monthly increase, a difference of +0.52 hours/day. These month-specific results qualify the overall decrease: it does not mean sunshine fell in every individual month.

Changes in snowfall

Mean daily snowfall, not monthly snowfall totals, was higher by a difference of +0.28 mm/day when the monthly means are averaged across calendar months. This is an unweighted aggregate and does not indicate that snowfall increased in every month. The largest monthly increase occurred in February, with a difference of +0.92 mm/day, while the largest monthly decrease was in November, at a difference of -0.25 mm/day. These differences describe recorded snowfall comparisons and should not be read as evidence that snowfall was absent in any period.