Climate Change Chart of Snowbird, USA

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature showed a difference of +2.55 °C compared with the earlier reference period. This is an unweighted comparison of monthly means, not a day-weighted annual average, and it describes mean temperature rather than daytime highs. The largest monthly increase was in January, with a difference of +4.35 °C. That identifies the strongest increase among the supplied monthly temperature differences; it does not mean every month changed by the same amount.

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a displayed difference of 0.00 mm/day. The rounded comparison is unchanged at the displayed precision; that does not establish that snowfall was absent or that values matched exactly at finer precision. The largest monthly increase in mean daily snowfall was in January, with a difference of +4.43 mm/day. The largest monthly decrease was in November, with a difference of -2.24 mm/day. These opposing monthly differences can coexist with an unchanged rounded mean across calendar months; the figures describe daily amounts, not monthly snowfall totals.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.32 mm/day compared with the earlier reference period. This is an unweighted mean of monthly averages, rather than a day-weighted annual figure, and refers to daily rainfall amounts rather than monthly totals. The largest monthly increase occurred in July, where mean daily rainfall had a difference of +1.24 mm/day. By contrast, the largest monthly decrease was in November, with a difference of -0.11 mm/day; these monthly contrasts show why the overall mean difference does not describe every month.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, showed a difference of -0.40 hours/day in the more recent period. This unweighted comparison of monthly means summarizes the aggregate difference, not a day-weighted annual average or a uniform change throughout the year. The largest monthly decrease was in April, with a difference of -0.81 hours/day in mean daily sunshine duration. It marks the greatest decrease among the supplied monthly differences, rather than implying the same decrease in other months.