Climate Change Chart of Ipoh, Malaysia

Overview of climate changes

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +2.69 mm/day in the more recent period. This is an unweighted mean of monthly means, not a day-weighted annual average or a monthly rainfall total. The largest monthly increase in mean daily rainfall occurred in November, with a difference of +5.62 mm/day. By contrast, February recorded the largest monthly decrease, with a difference of -0.01 mm/day; these extrema describe changes in daily means, not monthly totals.

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration showed a difference of -1.21 hours/day compared with the earlier reference period. This unweighted average across monthly means summarizes the overall comparison and does not mean that every month had the same change. The largest monthly decrease in mean daily sunshine was in December, with a difference of -2.06 hours/day. This marks the strongest monthly reduction in the supplied comparison, rather than a uniform decrease across all months.

Temperature changes

Averaged across calendar months, monthly mean temperature showed a difference of +0.39 °C compared with the earlier reference period; this unweighted mean describes the overall monthly pattern, not a change in every month or daytime maximum temperatures. The largest monthly increase was in July, with a difference of +0.61 °C. This identifies the strongest increase among the monthly means, rather than implying that temperatures rose by this amount in every month.