Attrition from the autumn

[Jeroensk1]

I've noticed that attrition only happens in the winter. Historically attrition already started if armies marched near the autumn. If (for example the saxons) you have an army is mostly contained levy (also known as the fyrd). These guys were farmers and they left if the army marched to late. It had something to do with crops and starvation in the winter

Is it possible to mod the db that attrition starts in the autumn orr is there already a mod available?

[SharpEyed]

Attirition not only happens in winter, also does in Spring (some places, and they are increasing with climate changes) but dont think there is any snow during the autumn so there is no attirition as well (except swamps)