Climate Change Chart of Ashgabat, Turkmenistan

Overview of climate changes

Temperature changes

Averaged across calendar months, the difference in monthly mean temperature was +0.96 °C. This is an unweighted comparison of monthly means, not a day-weighted annual average or a statement about daytime maximum temperatures. The largest monthly increase was in March, at +1.82 °C, while October had the largest monthly decrease, a difference of -0.27 °C. These month-specific extrema show that changes were not uniform across the calendar months; they do not establish a continuous trend.

Changes in snowfall

Mean daily snowfall averaged across calendar months had a difference of -0.09 mm/day. This unweighted comparison of monthly means is not a day-weighted annual average or a measure of monthly totals. The largest monthly decrease was in March, at -1.13 mm/day, whereas the largest increase was in December, with a difference of +0.45 mm/day. The contrasting monthly changes help explain why the aggregate difference should not be read as a description of every month. The figures concern recorded snowfall and do not imply its absence in either period.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.16 mm/day. This unweighted mean of monthly means describes the aggregate comparison, rather than a day-weighted annual average or monthly rainfall totals. The largest monthly increase occurred in February, with a difference of +0.45 mm/day; the largest monthly decrease was in April, at -0.02 mm/day. The small decrease in that month sits alongside the larger increase in the other, so the monthly pattern cannot be represented by the overall mean alone.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.72 hours/day. This is an unweighted mean of monthly sunshine means, not a day-weighted annual figure. The largest monthly decrease was in February, with a difference of -1.21 hours/day. That monthly extreme gives a specific point of contrast, while the mean summarizes the comparison across calendar months; neither indicates that every month changed by the same amount.