A recent provocative article in the Deplorable Climate Science Blog entitled "100% of US Warming is Due to NOAA Data Tampering" contends that NOAA has been further manipulating
USHCN records.
Many studies of climate change in the United States have been conducted recently using the
USHCN data set.
Christy, "Average per Station (1114
USHCN Stations) 1895-2017: Number of Days Daily Maximum Temperature Above 100[degrees]F and 105[degrees]F," DrRoySpencer.com, accessed November 2, 2017, http://www.drroyspencer.com/wp-content/uploads/US-extreme-high-temperatures-1895-2017.jpg.
Historical Climatology Network (
USHCN) stations overseen by NOAA.
Climate-related variables, including temperature and precipitation, are obtained from the United States Historical Climate Network (
USHCN).