  We use the discrete "wavelet transform microscope" to show that the surface
air temperature signals of weather stations selected in Europe are monofractal.
This study reveals that the information obtained in this way are richer than
previous works studying long range correlations in meteorological stations. The
approach presented here allows to bind the H\"older exponents with the climate
variability. We also establish that such a link does not exist with methods
previously carried out.
