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We all assume that our valley climate is heating up, but are there any statistics to verify that? The first one we look at is the number of days that the temperature exceeds 30C. I chose Kelowna because it is approximately in the middle of the valley.
And indeed it looks like things are heating up. Now lets look at the number of days that the temperature goes below zero Celcius.
Wait a minute. How come the number of cold days is increasing? Is there some other statistic that can sort this out? Let's have a look at Heating Degree Days. It is the number of degrees that a day's average temperature is below 18 degrees Celsius, which is the temperature below which buildings need to be heated.
Well that also indicates that things are cooling off. Lets try looking at the Cooling Degree Days. That is the number of degrees that a day's average temperature is above 18 degrees Celsius.
Well this is a bit of a dilemma. The climate activists are telling us that the world is heating up, but our valley looks like it is cooling down. What are we supposed to believe?
Maybe what we are seeing is more extremes, but a general cooling trend. Lets take a look at the cold extremes.
This one indicates increasing extreme cold events, which supports the supposition that we are seeing more extreme events, but a general cooling trend. What would cause this? I am not a climatologist, but inland climate extremes are often created by conditions that develop offshore. Even if we accept that ocean warming is causing the climate extremes, what is causing the inland cooling?
Statistics provided by Weatherstats.ca courtesy of Environment and Climate Change Canada. kelowna.weatherstats.ca