question about the likelihood of inhaling idodine in dry wheather versus rainy wheather

Hello:

I have a question regarding the likelyhood of inhaling I131 in dry versus rainy conditions. Let's assume that the amount of Iodine 131 is the same in both conditions, will a person be more likely to inhale more iodine in rainy days or less as maybe the iodine "gets bound to the rain drop" ? or will the likelyhood actually increase if it is rainy?
Or another way to ask it, is does rain take the iodine from the sky, bind it, takes it to lower levels and at the same time, will the iodine easy separate from the rain drop therefore also increasing the concentration in air? I can imagine that it will turn into an iodine 131 aersol, which probably can be inhaled easier than I131 in dry wheather. Any ideas?
I am just wondering because I got into rain last week, when the iodine peaked.

Thank you.