It is worse now with fewer weather stations and less data than in 1990. (drtimball.com)
Indeed, there are fewer weather stations in operation now than there were in 1960. (newsobserver.com)
They wanted to better understand how the climate of the Alaska Range has changed over the past several hundred years, because few weather station records of past climate in mountainous areas go back further than 1950. (sciencedaily.com)