Climate Change Chart of Tijuana, Mexico

Overview of climate changes

Temperature changes

Averaged across calendar months, the difference in monthly mean temperature was +0.76 °C compared with the earlier reference 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 October, at +1.15 °C, while December had the largest decrease, -0.22 °C. These are the monthly extremes in the supplied comparison, not a description of every month.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of -0.13 mm/day. This unweighted mean of monthly averages describes daily amounts, not monthly rainfall totals, and does not imply the same change in each month. The largest monthly decrease was in February, with a difference of -0.75 mm/day; by contrast, the largest monthly increase occurred in September, with a difference of +0.38 mm/day. These extremes show that the monthly differences varied in direction.

Changes in sunshine duration

Mean daily sunshine duration had an unweighted difference of -0.67 hours/day averaged across calendar months, compared with the earlier reference period. This summarizes monthly daily-hour averages rather than total sunshine over the year. The largest monthly decrease was in May, at -1.34 hours/day; this identifies the strongest decrease among the supplied monthly differences, not a uniform change throughout the year.

Changes in snowfall

Averaged across calendar months, mean daily snowfall was unchanged at the displayed precision, with a difference of 0.00 mm/day. This rounded result does not establish that snowfall was absent or that every month was unchanged. Monthly differences nevertheless varied: January had the largest decrease, -0.08 mm/day, while February had the largest increase, +0.02 mm/day. These are differences in mean daily amounts, not monthly snowfall totals.