Climate Change Chart of Novosibirsk, Russian Federation

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.94 °C compared with the earlier reference period; this is an unweighted mean of the 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 +5.80 °C. In contrast, September had the largest monthly decrease, a difference of -0.37 °C.

Changes in snowfall

Mean daily snowfall, averaged across calendar months, had a difference of +0.71 mm/day in the more recent period. This unweighted summary of monthly means describes daily amounts, not monthly snowfall totals. The largest monthly increase was in December, with a difference of +3.73 mm/day; the largest monthly decrease occurred in April, with a difference of -2.09 mm/day. These monthly contrasts show why the mean difference should not be read as applying equally to each month.

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration had a difference of -0.29 hours/day compared with the earlier period. This is an unweighted average of monthly means, not a day-weighted annual figure. The monthly pattern was not uniform: April had the largest increase, a difference of +0.59 hours/day, whereas February had the largest decrease, a difference of -0.96 hours/day.

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of +0.11 mm/day in the more recent period; this unweighted summary of monthly means is not an annual total or a day-weighted average. The largest monthly increase occurred in October, with a difference of +0.33 mm/day, while May recorded the largest monthly decrease, a difference of -0.17 mm/day. These figures describe mean daily amounts for those months, rather than monthly rainfall totals.