USCRN compared to Best

Plot showing Best and USCRN data.
Best is monthly data Average
USCRN is daily Average

Quite a good match (bearing in mind Best is7500 stations and USCRN is 40)

The match becomes better as more uscrn stations come on line

The slope of linear trend is -ve in Best +ve in uscrn mainly due to Best data terminating in 2011

Berkley Data Here

http://berkeleyearth.lbl.gov/regions/united-states