Chester County PA - Analytical Battle of Actual vs. Altered Climate Data

[ChescoWx]

Below is the summer (June-July-August) temperature summary for 2026 and summer temperature history from 1871-1926. This was 33rd warmest summer but overall since 1895 there has been no statistically significant warming or cooling across both the raw and composite trend and only the NCEI adjusted averages indicate any significant summer warming.

[Mike Cycle]

Paul, I started looking at the difference between the daily nclimgrid and daily raw station data for Chester County and surrounding area for 1951 forward.  Daily data for nclimgrid starts at 1951. A sample of that analysis is attached, showing that the difference varies by station.  This is interesting.  The difference may be amenable to modeling.

Cell size for the nclimgrid is about 2 X 2 miles--the red squares are each a cell with a time series.  When looking at CAG, we are seeing an average for the county of these squares.  

Can you provide the station list for your recent analysis?