The photoperiod is interesting.
But the weather plays an important part on how hunting conditions develop.
The hens on the nests for instance have a affect on the amount of gobbling and this will change with the weather. Everything I read said the weather played a role on the increase or decrease of the breeding activity.
Ground temperature can effect hen nesting .
From what I read photoperiodism has to be at an amount of daylight for breeding to begin .
Temperatures can speed up or slow down the breeding cycle.