Attention: NCEI will undergo maintenance on Saturday, Aug 1 (5:30 am ET to approximately 7:00 pm ET) Access to many web systems will be unavailable during this time.
Global Historical Climatology Network (GHCN)
Data File Access
For users who know the exact data they need and are comfortable using FTP.
Data Access via Climate Data Online (CDO)
For users who are not certain of the exact data they need or are not comfortable using FTP.
Temperature dataset that contains monthly mean temperatures and is used for operational climate monitoring activities.