Annual global surface temperature anomalies from five major observational datasets.
All values are expressed relative to an approximate pre-industrial baseline (~1850–1900),
as served by the Met Office Climate Dashboard.
Shaded bands show each dataset’s uncertainty estimate.
Baseline: All anomalies are expressed relative to an approximate pre-industrial
baseline (~1850–1900), applied uniformly by the Met Office Climate Dashboard. Each
dataset’s native reference period and methodology differs; see the source links below for details.
Data: Formatted time series served by the
Met Office Climate Dashboard
(Open Government Licence). Original datasets:
HadCRUT5
(Met Office Hadley Centre & CRU) ·
GISTEMP v4
(NASA GISS) ·
Berkeley Earth ·
NOAAGlobalTemp
(NOAA NCEI) ·
ERA5
(Copernicus Climate Change Service / ECMWF).