View the state of the climate, both now and in the past.
Scientists at the Met Office Hadley Centre develop observational datasets that, amongst other things, are used to monitor the climate. These pages contain graphics produced from these datasets along with explanations of features that can be seen.
There are also links to HadObs - the Met Office Hadley Centre observations webpages - where most of the data used to create the plots can be found, and to pages describing the work of the team who produce the data and plots.
You may also be interested in the Bulletin of the American Meteorological Society State of the Climate reports, which Met Office Hadley Centre scientists contribute to.