2023 v 2024 USHCN Raw Temperature Data

Each year, I download the temperature history data and use a program named Climate History to process it, creating an Excel spreadsheet that enables me to plot the data and identify trends. Today, I came across a post by Tony Heller, who mentioned that NOAA was altering the original thermometer data. This motivated me to perform my annual download today to verify Tony's claims. Since I download data yearly, I have a historical record to compare the current data against. It disappoints me to validate Tony's findings, as it indicates that NOAA is now modifying the raw temperature history. Unsurprisingly, these modifications suggest that temperatures have been rising over the past 20 years.