Higher bloodsugar because of the rain.

I find that on rainy days my daughter always seems to have higher bloodsugar. I used to think this was because she wasn't so hot and bothered, but have realised that it corrolates with the days when she can't go out and play. On those days she doesn't use up so much energy so comes out of school in a much better mood. Of course I can't stop her from going out to play but it does help me work out which days to give her more food in her lunch box.