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

[ChescoWx]

Below is how much faster the warming is just since 1960 at our local PHL Airport with their growing UHI problem. That warming slope is a wee bit different just around 25 to 35 miles west of the concrete and river warm oasis that is PHL Airport! 

[chubbs]

On 3/22/2026 at 4:52 PM, ChescoWx said:

Below is how much faster the warming is just since 1960 at our local PHL Airport with their growing UHI problem. That warming slope is a wee bit different just around 25 to 35 miles west of the concrete and river warm oasis that is PHL Airport! 

Reposting some of the charts I posted previously. Your line doesn't look anything like the raw data from individual stations. There is no significant difference in warming between individual Chester County stations and the Philadelphia Airport. Of course cooling station moves should be excluded. That's why the West Chester plot ends in 1969.

Per the table below, there are big changes in the Chester County station population that you aren't accounting for. In comparison, the Philadelphia airport heat island is mature and isn't changing much from decade to decade. If heat island is important, why ignore the movement of Chester County stations out of towns after World War II? 

[ChescoWx]

20 hours ago, chubbs said:

Reposting some of the charts I posted previously. Your line doesn't look anything like the raw data from individual stations. There is no significant difference in warming between individual Chester County stations and the Philadelphia Airport. Of course cooling station moves should be excluded. That's why the West Chester plot ends in 1969.

Per the table below, there are big changes in the Chester County station population that you aren't accounting for. In comparison, the Philadelphia airport heat island is mature and isn't changing much from decade to decade. If heat island is important, why ignore the movement of Chester County stations out of towns after World War II? 

Try consolidating your data you will find the story matches my above analytics.

[A-L-E-K]

denier board

[ChescoWx]

46 minutes ago, A-L-E-K said:

denier board

Climate realist board....

[ChescoWx]

Many climate alarmist like to point to the Time of Observation Bias (TOB) as solid "scientific adjustments" required to correct that bias. NOAA/NCEI in fact chose to chill every year at Coatesville from 1895 thru 1982. However, if anything when we look at the facts of when these observations were taken (see the below of COOP observation time/years) we see that with the exception of 11 years.... temperatures were in reality recorded in the morning. So if their rationale is correct the bias for Coatesville should in fact be too cool with all of those AM minimum temperature reports. Yet they chose to not warm those years - they actually made additional chilling adjustments.

[chubbs]

21 hours ago, ChescoWx said:

Try consolidating your data you will find the story matches my above analytics.

OK I took an initial stab at consolidating the data using Chester County's 3 long-term COOP stations. My consolidation doesn't look at all like your "analytics". Why? I only use periods without major station moves: 1949-2025 for Coatesville and Phoenixville and 1894-1969 for West Chester. I also use the 1949-1969 overlap period to take out the temperature difference between the 3 stations. While it doesn't look like your "analytics", my consolidation is a good match to the data collected at individual Chester County stations, posted above. That's gives my confidence in this approach and I plan to extend this method to the rest of the data.

 

[ChescoWx]

3 hours ago, chubbs said:

OK I took an initial stab at consolidating the data using Chester County's 3 long-term COOP stations. My consolidation doesn't look at all like your "analytics". Why? I only use periods without major station moves: 1949-2025 for Coatesville and Phoenixville and 1894-1969 for West Chester. I also use the 1949-1969 overlap period to take out the temperature difference between the 3 stations. While it doesn't look like your "analytics", my consolidation is a good match to the data collected at individual Chester County stations, posted above. That's gives my confidence in this approach and I plan to extend this method to the rest of the data.

 

 

Cherry picking always gives the desired answer.....

[chubbs]

1 hour ago, ChescoWx said:

Cherry picking always gives the desired answer.....

Yes, here's a good example of cherry picking. Do you have any specific technical complaints? I'll be adding other stations; but, why would the results change?. The other stations all have much shorter record lengths. Plus the modern stations are all warming rapidly in complete agreement with the Coatesville and Phoenixville data. 

[Cobalt]

5 hours ago, chubbs said:

Yes, here's a good example of cherry picking. Do you have any specific technical complaints? I'll be adding other stations; but, why would the results change?. The other stations all have much shorter record lengths. Plus the modern stations are all warming rapidly in complete agreement with the Coatesville and Phoenixville data. 

Unironically posting a graph like that should get you banned from any scientific community ever. The absolute failure of even Stats 101-level thinking is abhorrent to a degree where it feels like Chesco is playing a persona.