If the Daily was eliminated on the individual lines then it would have to be added to the .gif as a title line - which might be a bit more elegant but would result in a net saving of almost nothing.
yes, i could remove the word daily from each line, that wont change bandwidth, but having the gif image slightly narrower will reduce the image file size a little, but not signifcantly
To be honest, my suggestion is more asthetic than bandwidth. (I misunderstood bandwidth issue since you are uploading a gif or jpeg instead of actual data)
When scanning the table, it is easier to understand if presented as
Temp Min 40
Max 90
Baro Min
Max