If the size of each block was reduced to a few pixels square you could fit an entire year in a single image (4 pixels * 12 * 24 = 1152 wide, 365 * 4 = 1460 high) - which might be nice way of visualizing what the weather is like in a location.
This would be a great visualization of daylight quantity and quality over the year.
What those do show is:
- The huge variations in day length due to latitude
- How those of us in higher latitudes spend in the gloaming - my favourite time of day
You can plot other variables like this too - temperature, humidity, ...