This centre, in collaboration with the Climatic Research Unit at the Univ. of East Anglia, produces and maintains a range of gridded datasets of meteorological variables for use in climate monitoring and climate modelling. These datasets are for scientific research and personal use only. The same data can also be found in the Met Office Hadley Centre CEDA Archive.
The GISS Surface Temperature Analysis is an estimate of global surface temperature change: monthly, seasonal, and annual. Includes graphs and tables and txt and csv files with data as far back as 1880. Also includes gridded surface air temperature anomaly data. Scroll down to get to the data files.
An archive of global coastal, oceanographic, geophysical, climate, and historical weather data that includes hourly, sub-hourly, daily, monthly, seasonal, and yearly measurements of NOAA's archived environmental data.
A plethora of resources including State of the Climate which gives national and global overviews and analyses by month and year, and Climate at Glance which shows comparisons of local, state, regional, national, and global data in historical perspective to determine trends. Use the menu options on the left to explore these different areas.
First published in 1927, World Weather Records has data from locations around the world that include monthly mean values of pressure, temperature, precipitation, and where available, station metadata notes documenting observation practices and station configurations. Scroll down to the Data Access section to retrieve files.