June July and August I fish 3 or 4 times per week - subject to trips to see children and my wife's mother. Let's say 40 half or full days. In September, October, April, and May I average 2 or 3 trips per month, so that's 10 more. On Spring break, weather always prevents a full week so count 3 days for March. December, January, and February - not very often as I hate being cold.
Long story short, 50 to 55 days per year.