What could cause faucets to spit and sputter only in the fall/winter?
If the pump does not short cycle, that means the bladder in the tank is OK, assuming you have seldom needed to refill it with air.

A shallow well could be the root of your problem. Especially if summer coincides with your rainy season. At the beginning of last winter, along with most of the rest of it, the Northeast USA was in a drought:



Upgrading our summer home, we sunk two additional well-points (with a jackhammer), as the pump we got to handle our four new bathrooms was to powerful for the existing single well-point. Evening being located five feet above, and 200' away from a lake we had supply problems; it would cavitate/aerate.



Does your faucet spit and sputter? -JohnDee.com, people suggesting low water table or bad pump seals. Possibly yours fail with a drop in incoming temperature.