The graph below displays the day-to-day values of maximum daily temperature (red dots) at Penticton for the year 1993. On this graph, the dark grey thick center line is the average daily temperature calculated from 50 years of data from 1951 to 2000. The dotted light grey lines are the 5% and 95% probability intervals - about 90% of the data from 1951 to 2000 fell within these boundaries. Daily temperatures can be considered as extreme cold or extreme hot events if they that fall outside the 5% or 95% probability intervals, respectively. In Canada, temperatures above 30°C (green dashed line) are considered extreme daily temperatures.

        To see the graph for any other year between 1951 to 2026 select a button below.