I have seen this going on every single night since I first noticed in Sept.. I smoke cigs outside, so I'm out there every hour or so.. Nothing happens during the day that I've seen. Weather and temp doesn't stop anything.. These lights keep going all night in the worst winds and rain and it doesn't affect their hovering, it's just the same as if it's dry with no wind, which is crazy. I'd have to Google mufon and check I out. You guys are the first place online I've turned to. There are power lines that connect directly to my home.. I don't recall power lines leading to the blue street light out back. I'll have to check tomorrow in the day.You said this happens every night. Does that mean you have seen this every single night since Sept, or that every time you've looked since Sept you've seen whatever this is? Do you see this at the same time each night? Any variations as a function of weather/temperature changes? Are there power lines in the immediate vicinity? Any noise associated with this phenomena?
Although I don't put much faith in them, have you contacted the local MUFON chapter? You tell those guys you are seeing UFOs every night, I think it's a good bet they will send out someone to gather evidence of what you are seeing. If nothing else, you'll get the piece of mind knowing someone else is seeing whatever this is.