normal climatológica
Published 8 November 2026, 22:44
normal climatológica — thirty-year climate normal
Average values for temperature, rainfall and the number of hot, rainy and frosty days over a thirty-year period; the one currently in use is 1991–2020. It is the benchmark when people say "two degrees above normal" or "two hundred per cent of normal rainfall". IPMA publishes these figures separately for each of its weather stations.
Where you come across it. Weather reports, climate bulletins, discussions of what winter is like in a particular town and how many hot days it gets.
A normal is an average for a place, not for the country: Lisbon's and Bragança's differ so much that there are simply no overall figures for Portugal. And a normal is not a promise: a particular year may turn out twice as rainy.
Official website: ipma.pt/pt/oclima/normais.clima/1991-2020