I received a reply from Davis Instruments on the question of are they ever going to upgrade their mac version:
Davis Instruments Weather We know the Mac software is a pain point, and we're sorry for the issues you've faced with it. We are in the process of assessing the software to better accommodate the wants and needs of our customers.
I have asked Davis that same question for probably 8 years and the answer is always exactly the same. I even offered to be a beta tester. To that letter the CEO answered he is keeping my letter on his desk as a reminder; that was 3 years ago.
Probably he puts it under his coffee cup to prevent a ring on his desk.