Maybe not official but that's what it feels like to you at that level, so it's accurate lol. Mine spikes like that also but it sure "feels" right and I'm not an official reporting station, so it works for meYeah I've noticed that both of my stations often spike dews early in the day particularly after a heavy rain/dew/watering then as that water is evaporated from the surface and mixing starts they fall back to surrounding obs. I have 1 at 8 ft and 1 at 6 feet not sure if that's too low and they need to be raised or what. Just using today as an example they maxed out near 80 on the dew but have fallen back to 73.