One reason I brought it up was due to a discovery I made while looking at the historical precipitation data for Harrisburg. For a good number of years the station was located at capital city airport before its move to HIA in I think 1991. Capital city had like a year of no data before it started reporting once more. Straight line the 2 stations are no more than 3 or 4 miles from each other. Despite this proximity capital city had a precipitation total that was less than HIA 29/30 years and I believe it was around 10%. Even when I broke up year into quarters this effect was constant throughout. I’ll have to dig up all the research I did but I came away convinced this was not just random, not instrument or human error, that it clearly involved some microclimate effect. The only one that sense was capital city proximity to some of larger hills like in northern York county. It just shocked me that the effect was that large. .