The last time I rode my fingers began to lock up on my clutch hand. It was about 14celcius which is probably 50-60F and I was abit wet so I'm pretty sure it plays apart in the locking factor but last summer it was real hot and after riding for 4 hours my braking fingers locked up abit and I couldnt pull in my brake lever which led to a crash, but it was all good.
All winter I rode my snowmobile so my clutch fingers were being used on the brake so do you guys think it would just be the cold and wet that was making my hands lock up or should I maybe do some finger excersises or something like that?