The Global Historical Climatology Network (GHCN) is a worldwide climate database with managed by the National Climatic Data Center at Arizona State University and the Carbon Dioxide Information Analysis Center. It primarily contains data on temperatures and precipitation on a daily basis.
weekly
daily
125.463 Stations 345.246 Sensors
Menne, M.J., I. Durre, B. Korzeniewski, S. McNeal, K. Thomas, X. Yin, S. Anthony, R. Ray, R.S. Vose, B.E.Gleason, and T.G. Houston, 2012: Global Historical Climatology Network - Daily (GHCN-Daily), Version 3. NOAA National Climatic Data Center.