Chet, it might be more money than you are willing to spend, but something like a
Meteobridge could "bridge" the gap for you. I use one to upload to all of my weather sites instead of WXCat for the very reason you mentioned - I don't want gaps in my (
crappy) Wunderground account just because WXCat or my iMac aren't running for longer than the data logger will store.
Chet makes a really good point. If we are going to have our computer down for an extended time for whatever reason, short of setting up WXCat on an old machine temporarily, what are the options to get that data back into WXCat (not sites like WU or WXCloud)? Will a Davis logger store essentially the same data (every two or every five minutes) that could then be downloaded upon being re-attached?