Are houses worth more in the summer and less in the winter?  I have always mostly ignored that question because median home values bounce all over the place front month to month in Harrisonburg and Rockingham County.



It's certainly hard to draw any conclusions about seasonal (summer vs. winter) changes in home values based on the data above. 

The related question here is whether home values really jump around as much as shown above -- no, they don't -- with only 50-100 home sales per month the sample size of the data set is small enough to allow for the variation shown above.  Basically, the median home value might end up adjusting quite a bit in one direction or the other in any given month because of the composition of how many smaller homes versus larger homes sold in any given month.

But then when I examine the entire state of Virginia, values do seem to adjust seasonally....



So -- does anyone have any theories here?  Why do Virginia home values seem to adjust so seasonally (as per median prices) but Harrisonburg and Rockingham County do not?