Climate Change Chart of Fairbanks, Alaska, USA

Overview of climate changes

Temperature changes

Across calendar months, the unweighted mean of monthly mean temperatures shows a difference of +1.92 °C, averaged across calendar months; this summarizes the period averages and does not describe every month or daytime highs. The largest monthly mean-temperature increase was in December, with a difference of +5.65 °C. This marks the strongest monthly increase in the supplied comparison, rather than a change that can be assumed for every winter month.

Changes in rainfall

Mean daily rainfall increased by +0.11 mm/day on average across calendar months. These are daily means, not monthly rainfall totals, and the average difference does not imply that rainfall rose in every month. The largest monthly increase in mean daily rainfall was in August, with a difference of +0.58 mm/day; the largest decrease was in June, with a difference of -0.29 mm/day. The contrasting monthly results show why the overall average should not be read as a uniform change through the year.

Changes in sunshine duration

Mean daily sunshine duration had an average difference of -0.45 hours/day across calendar months. The largest monthly decrease was in August, with a difference of -1.64 hours/day, while the largest monthly increase was in June, with a difference of +0.32 hours/day; these are differences in daily average hours, not guarantees about sunshine on particular days.

Changes in snowfall

Mean daily snowfall increased by +0.42 mm/day on average across calendar months. The largest increase was in December, with a difference of +2.78 mm/day, while the largest decrease was in January, with a difference of -0.98 mm/day; these daily averages are not snowfall totals for the month.