I am not from with your area but when I was facing a similar problem I visited all the local possibilities and spend some time drinking coffee, talking to instructors and watching what was going on. I then had trial flights at two places before making my final decision. I was amazed at the variance in approach over the different airfields and schools/clubs.
A grass airfield that is well drained is likely to be open 99% of the year. Ask how often it is waterlogged, some times it is an issue, but mostly it is urban myth
A PPL is a big investment and time spent in recognisance is never wasted.
Are you planning to be a recreational flyer, or do you have commercial aspirations?
Good luck and enjoy it.
Rod1