Climate Change Chart of Nuuk, Greenland

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference/change of +3.63 °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 mean every month warmed by the same amount. The largest monthly increase was in July, with a difference/change of +5.89 °C. This describes monthly mean temperature, not daytime maximum temperatures.

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference/change of -0.17 mm/day. This is an unweighted mean of monthly means, not a day-weighted annual average, and does not imply the same change in every month. The largest monthly increase occurred in January, with a difference/change of +3.07 mm/day; the largest monthly decrease occurred in October, with a difference/change of -6.28 mm/day. These comparisons concern mean daily snowfall, not monthly totals.

Changes in rainfall

Averaged across calendar months, mean daily rainfall increased by a difference/change of +0.26 mm/day in the more recent period. This unweighted comparison of monthly means is not a day-weighted annual average, and it does not imply that rainfall increased in every month. The largest monthly increase was in June, with a difference/change of +1.37 mm/day. By contrast, May had the largest monthly decrease, a difference/change of -0.40 mm/day. These are changes in mean daily rainfall, not monthly rainfall totals.

Changes in sunshine duration

The unweighted mean difference in mean daily sunshine across calendar months was a difference/change of +0.02 hours/day, so the overall average of the monthly values was close to unchanged at the displayed precision. This aggregate does not describe every month individually. Monthly differences varied in direction: July had the largest increase, a difference/change of +1.95 hours/day, while June had the largest decrease, a difference/change of -2.73 hours/day. These figures refer to mean daily sunshine hours.