I have been trying to solve a problem with multiple data spikes showing up in my daily Weather Underground graphs. These seem to have started around Jan 31 from what I can see going back through my data. At that time the data was being supplied by my Ecowitt GW1000. The spikes look like they are happening across the board much of the time, meaning they appear in temperature, UV, solar rad, sometimes pressure, and rain. I've seen some other threads about random UV spikes, but mine are happening in these other areas mentioned as well. I've tried relocating the GW1000 to different outlets which are away from cycling refrigerators etc., but I can't seem to get rid of the problem. I recently purchased the Ecowitt Wittboy, and transfered the WU duties over to the GW2000 and I am still getting the spikes. I'm not sure what to do at this point. My Ecowitt.net data along with Weathercloud and WeatherObservations data don't seem to show the same spikes or problems. Also, the WU data temperature lows don't seem to match the graphs either, with the low temperature be stated for the day, much lower than any readings in the graphs. I just can't figure out why there are discrepancies, but I think it has to do with the data spikes/corruptions. You can look at the historical data charts and see what I mean. The Ecowitt site graphs don't show any problems.
https://www.wunderground.com/dashboard/pws/KCAEMERA6https://www.ecowitt.net/home/share?authorize=Y6FJKFHere is a sample from WU
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I'm running 2 stations at the moment, the Wittboy, and my original station which includes an Ecowitt WS68 mounted 30ft up, and a homemade FARS with an WH32_EP temp/humidity probe. The WH32_EP and the FARS unit have been running for about a year, so it doesn't seem to be related to those. At the moment I have the GW2000 reporting to WU with WH32_EP providing the outdoor temp and the Wittboy providing the rest of the data. I'm not really sure what the issue is since the problem is across 2 different stations and 2 receivers/upload units. Also, my internet is gig fiber, and my router/wifi hasn't changed in over a year, so no recent changes there either. Any help or suggestions would be appreciated.