Climate Change Chart of Little Rock, USA

Overview of climate changes

Temperature changes

Monthly mean temperature was higher by a difference of +0.73 °C averaged across calendar months in the more recent period; this is an unweighted comparison of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in December, with a difference of +1.78 °C. This identifies the strongest increase among the reported monthly comparisons, not a continuous change through time.

Changes in rainfall

Mean daily rainfall increased by a difference of +0.56 mm/day averaged across calendar months. This unweighted mean describes the aggregate shift in monthly averages; it is not a day-weighted annual average, and the figures are daily means rather than monthly rainfall totals. The largest monthly increase occurred in February, where mean daily rainfall had a difference of +1.24 mm/day compared with the earlier reference period. That monthly result should not be read as applying to every month.

Changes in sunshine duration

Mean daily sunshine duration was lower by a difference of -0.21 hours/day averaged across calendar months in the more recent period. The comparison is an unweighted average of monthly means, rather than a day-weighted annual measure. Monthly differences varied in direction: September had the largest increase, a difference of +0.50 hours/day, while October had the largest decrease, a difference of -0.72 hours/day. These are monthly mean daily hours, not evidence that sunshine changed steadily between the reference periods.

Changes in snowfall

Mean daily snowfall was lower by a difference of -0.13 mm/day averaged across calendar months. This summarizes the unweighted monthly means and does not imply the same difference in every month; the figures are daily means, not monthly totals. The monthly pattern included the largest decrease in January, with a difference of -1.36 mm/day, and the largest increase in November, with a difference of +0.16 mm/day. These contrasting monthly comparisons show why the overall mean difference should not be taken as a description of each month.