I have the Davis Vantage Pro 2. Love it but it is an older model and they no longer make the humidity sensor for it. I have had too replace it 3 times since I have owned it but since they have upgraded the sensor, the reliability should be better.
That is exactly what I am thinking. My area will be lucky to see low's in the 20's again. This is looking like it may be the first winter in some time that I don't see temps fall below 25 much less 20.