Climate Change Chart of Oxford, Great Britain

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.88 °C in the more recent reference period; this is an unweighted comparison of monthly means, not a day-weighted annual average or a measure of daytime highs. The largest monthly increase was in December, at +1.94 °C, while April had the largest decrease, a difference of -0.43 °C.

Changes in rainfall

For rainfall, the mean daily amount averaged across calendar months had a difference of +0.60 mm/day. The largest monthly increase was in October, with a difference of +1.18 mm/day in mean daily rainfall. These figures describe daily averages for the months concerned, not monthly totals or how often rain fell.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.29 hours/day. The largest decrease was in June, at -1.11 hours/day, whereas February recorded the largest increase, a difference of +0.35 hours/day. These comparisons describe average daily hours, not the sunshine visitors can expect on any particular day.

Changes in snowfall

Snowfall’s mean daily amount averaged across calendar months had a difference of -0.14 mm/day. The largest decrease was in January, with a difference of -1.76 mm/day, while the largest increase was in December, at +0.34 mm/day. These daily averages do not indicate snowfall on every day in those months.