Local records are normal. There is variation in weather, and there are many "local" spots on earth. There are also coldness records every year, but there is less reporting on it.
Climate always changes, the question then is, is it extraordinary change because of CO2. I don't think merely counting record events is a good way to determine that 40 years is also not a very long time span..
Also it seems likely that more measurements are being taken (at more locations). And cities are expanding, changing local weather.