Clouds and Blue Skies

We have been most fortunate these last couple of weeks as we have had lots of sun.  This isn't normal for us as it is usually overcast and snowing.  We have gotten lots of snow but for the last couple of weeks it has been down to just a small skiff per day... During the winter the sky even seems bluer then during the summer, I am not sure why that is.  Is it because of the blue against the white of the snow it seems more brilliant?  Or is it just because we don't see it that often that we are amazed by the colour?  It doesn't matter ~ the sky is blue and it is wonderful.