Climate Change Chart of Salta, Argentina

Overview of climate changes

Temperature changes

Across calendar months, the unweighted mean difference in monthly mean temperature was +0.56 °C, describing the aggregate of monthly means rather than a day-weighted annual average or a change shared by every month. The largest monthly increase was in October, with a difference of +2.23 °C; this identifies the strongest increase among the monthly comparisons, not a uniform shift through the year. By contrast, June had the largest monthly decrease, a difference of -1.20 °C. These figures concern monthly mean temperatures, not daytime maximum temperatures.

Changes in rainfall

Mean daily rainfall, rather than monthly rainfall totals, had an unweighted difference across calendar-month means of -4.06 mm/day. This summarizes the average difference across the supplied monthly means and does not mean rainfall declined by the same amount in every month. The largest monthly decrease was in October, where mean daily rainfall had a difference of -7.54 mm/day. This marks the strongest monthly decrease, not a change in monthly totals.

Changes in sunshine duration

For mean daily sunshine duration, the unweighted difference across calendar-month means was +0.17 hours/day. The aggregate does not imply that sunshine duration increased in every month. The largest monthly increase occurred in August, with a difference of +0.90 hours/day, while April recorded the largest monthly decrease, a difference of -0.34 hours/day. These monthly comparisons describe mean daily hours, not total sunshine over each month.

Changes in snowfall

Mean daily snowfall had an unweighted difference across calendar-month means of -0.02 mm/day. This is an aggregate of monthly averages and does not indicate that snowfall changed equally in every month. The largest monthly decrease was in July, with a difference of -0.13 mm/day. In contrast, the largest monthly increases were tied across April / May / September, each with a difference of +0.01 mm/day. These are differences in mean daily snowfall, not monthly snowfall totals.